prepare actix-multipart release 0.4.0

prepare actix-web-actors release 4.0.0
prepare actix-files release 0.6.0
2025-07-03 09:36:36 +02:00 · 2022-02-25 20:41:57 +00:00 · 2022-02-25 20:41:33 +00:00 · 2022-02-25 20:36:16 +00:00 · 2022-02-25 20:31:46 +00:00 · 2022-02-25 19:11:46 +00:00
70 changed files with 1517 additions and 389 deletions
--- a/.github/workflows/ci-post-merge.yml
+++ b/.github/workflows/ci-post-merge.yml
@ -152,3 +152,34 @@ jobs:
  #     - name: Upload to Codecov
  #       uses: codecov/codecov-action@v1
  #       with: { file: cobertura.xml }
+
+  nextest:
+    name: nextest
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          profile: minimal
+          override: true
+
+      - name: Generate Cargo.lock
+        uses: actions-rs/cargo@v1
+        with: { command: generate-lockfile }
+      - name: Cache Dependencies
+        uses: Swatinem/rust-cache@v1.3.0
+
+      - name: Install cargo-nextest
+        uses: actions-rs/cargo@v1
+        with:
+          command: install
+          args: cargo-nextest
+
+      - name: Test with cargo-nextest
+        uses: actions-rs/cargo@v1
+        with:
+          command: nextest
+          args: run
--- a/CHANGES.md
+++ b/CHANGES.md
@ -1,4 +1,4 @@
-# Changes
+# Changelog

 Changelogs are kept separately for each crate in this repo.

--- a/actix-files/CHANGES.md
+++ b/actix-files/CHANGES.md
@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx


+## 0.6.0 - 2022-02-25
+- No significant changes since `0.6.0-beta.16`.
+
+
 ## 0.6.0-beta.16 - 2022-01-31
 - No significant changes since `0.6.0-beta.15`.

--- a/actix-files/Cargo.toml
+++ b/actix-files/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-files"
-version = "0.6.0-beta.16"
+version = "0.6.0"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "fakeshadow <24548779@qq.com>",
@ -22,10 +22,10 @@ path = "src/lib.rs"
 experimental-io-uring = ["actix-web/experimental-io-uring", "tokio-uring"]

 [dependencies]
-actix-http = "3.0.0-rc.2"
+actix-http = "3"
 actix-service = "2"
 actix-utils = "3"
-actix-web = { version = "4.0.0-rc.3", default-features = false }
+actix-web = { version = "4", default-features = false }

 askama_escape = "0.10"
 bitflags = "1"
@ -43,6 +43,6 @@ tokio-uring = { version = "0.2", optional = true, features = ["bytes"] }

 [dev-dependencies]
 actix-rt = "2.2"
-actix-test = "0.1.0-beta.12"
-actix-web = "4.0.0-rc.3"
+actix-test = "0.1.0-beta.13"
+actix-web = "4.0.0"
 tempfile = "3.2"
--- a/actix-files/README.md
+++ b/actix-files/README.md
@ -3,16 +3,16 @@
 > Static file serving for Actix Web

 [![crates.io](https://img.shields.io/crates/v/actix-files?label=latest)](https://crates.io/crates/actix-files)
-[![Documentation](https://docs.rs/actix-files/badge.svg?version=0.6.0-beta.16)](https://docs.rs/actix-files/0.6.0-beta.16)
+[![Documentation](https://docs.rs/actix-files/badge.svg?version=0.6.0)](https://docs.rs/actix-files/0.6.0)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![License](https://img.shields.io/crates/l/actix-files.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-files/0.6.0-beta.16/status.svg)](https://deps.rs/crate/actix-files/0.6.0-beta.16)
+[![dependency status](https://deps.rs/crate/actix-files/0.6.0/status.svg)](https://deps.rs/crate/actix-files/0.6.0)
 [![Download](https://img.shields.io/crates/d/actix-files.svg)](https://crates.io/crates/actix-files)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

 ## Documentation & Resources

- [API Documentation](https://docs.rs/actix-files/)
- [Example Project](https://github.com/actix/examples/tree/master/basics/static_index)
+- [API Documentation](https://docs.rs/actix-files)
+- [Example Project](https://github.com/actix/examples/tree/master/basics/static-files)
 - Minimum Supported Rust Version (MSRV): 1.54
--- a/actix-files/src/chunked.rs
+++ b/actix-files/src/chunked.rs
@ -81,7 +81,7 @@ async fn chunked_read_file_callback(
 ) -> Result<(File, Bytes), Error> {
    use io::{Read as _, Seek as _};

-    let res = actix_web::rt::task::spawn_blocking(move || {
+    let res = actix_web::web::block(move || {
        let mut buf = Vec::with_capacity(max_bytes);

        file.seek(io::SeekFrom::Start(offset))?;
@ -94,8 +94,7 @@ async fn chunked_read_file_callback(
            Ok((file, Bytes::from(buf)))
        }
    })
-    .await
-    .map_err(|_| actix_web::error::BlockingError)??;
+    .await??;

    Ok(res)
 }
--- a/actix-files/src/named.rs
+++ b/actix-files/src/named.rs
@ -96,18 +96,18 @@ impl NamedFile {
    ///
    /// # Examples
    /// ```ignore
+    /// use std::{
+    ///     io::{self, Write as _},
+    ///     env,
+    ///     fs::File
+    /// };
    /// use actix_files::NamedFile;
-    /// use std::io::{self, Write};
-    /// use std::env;
-    /// use std::fs::File;
    ///
-    /// fn main() -> io::Result<()> {
-    ///     let mut file = File::create("foo.txt")?;
-    ///     file.write_all(b"Hello, world!")?;
-    ///     let named_file = NamedFile::from_file(file, "bar.txt")?;
-    ///     # std::fs::remove_file("foo.txt");
-    ///     Ok(())
-    /// }
+    /// let mut file = File::create("foo.txt")?;
+    /// file.write_all(b"Hello, world!")?;
+    /// let named_file = NamedFile::from_file(file, "bar.txt")?;
+    /// # std::fs::remove_file("foo.txt");
+    /// Ok(())
    /// ```
    pub fn from_file<P: AsRef<Path>>(file: File, path: P) -> io::Result<NamedFile> {
        let path = path.as_ref().to_path_buf();
--- a/actix-http-test/CHANGES.md
+++ b/actix-http-test/CHANGES.md
@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0-beta.13 - 2022-02-16
+- No significant changes since `3.0.0-beta.12`.
+
+
 ## 3.0.0-beta.12 - 2022-01-31
 - No significant changes since `3.0.0-beta.11`.

--- a/actix-http-test/Cargo.toml
+++ b/actix-http-test/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-http-test"
-version = "3.0.0-beta.12"
+version = "3.0.0-beta.13"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Various helpers for Actix applications to use during testing"
 keywords = ["http", "web", "framework", "async", "futures"]
@ -30,12 +30,12 @@ openssl = ["tls-openssl", "awc/openssl"]

 [dependencies]
 actix-service = "2.0.0"
-actix-codec = "0.4.1"
-actix-tls = "3.0.0"
+actix-codec = "0.5"
+actix-tls = "3"
 actix-utils = "3.0.0"
 actix-rt = "2.2"
 actix-server = "2"
-awc = { version = "3.0.0-beta.20", default-features = false }
+awc = { version = "3.0.0-beta.21", default-features = false }

 base64 = "0.13"
 bytes = "1"
@ -51,5 +51,5 @@ tls-openssl = { version = "0.10.9", package = "openssl", optional = true }
 tokio = { version = "1.8.4", features = ["sync"] }

 [dev-dependencies]
-actix-web = { version = "4.0.0-rc.3", default-features = false, features = ["cookies"] }
-actix-http = "3.0.0-rc.2"
+actix-web = { version = "4.0.0", default-features = false, features = ["cookies"] }
+actix-http = "3.0.0"
--- a/actix-http-test/README.md
+++ b/actix-http-test/README.md
@ -3,11 +3,11 @@
 > Various helpers for Actix applications to use during testing.

 [![crates.io](https://img.shields.io/crates/v/actix-http-test?label=latest)](https://crates.io/crates/actix-http-test)
-[![Documentation](https://docs.rs/actix-http-test/badge.svg?version=3.0.0-beta.12)](https://docs.rs/actix-http-test/3.0.0-beta.12)
+[![Documentation](https://docs.rs/actix-http-test/badge.svg?version=3.0.0-beta.13)](https://docs.rs/actix-http-test/3.0.0-beta.13)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http-test)
 <br>
-[![Dependency Status](https://deps.rs/crate/actix-http-test/3.0.0-beta.12/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.12)
+[![Dependency Status](https://deps.rs/crate/actix-http-test/3.0.0-beta.13/status.svg)](https://deps.rs/crate/actix-http-test/3.0.0-beta.13)
 [![Download](https://img.shields.io/crates/d/actix-http-test.svg)](https://crates.io/crates/actix-http-test)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@ -3,6 +3,301 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0 - 2022-02-25
+### Dependencies
+- Updated `actix-*` to Tokio v1-based versions. [#1813]
+- Updated `bytes` to `1.0`. [#1813]
+- Updated `h2` to `0.3`. [#1813]
+- Updated `rustls` to `0.20.0`. [#2414]
+- Updated `language-tags` to `0.3`.
+- Updated `tokio` to `1`.
+
+### Added
+- Crate Features:
+  - `ws`; disabled by default. [#2618]
+  - `http2`; disabled by default. [#2618]
+  - `compress-brotli`; disabled by default. [#2618]
+  - `compress-gzip`; disabled by default. [#2618]
+  - `compress-zstd`; disabled by default. [#2618]
+- Functions:
+  - `body::to_bytes` for async collecting message body into Bytes. [#2158]
+- Traits:
+  - `TryIntoHeaderPair`; allows using typed and untyped headers in the same methods. [#1869]
+- Types:
+  - `body::BoxBody`; a boxed message body with boxed errors. [#2183]
+  - `body::EitherBody` enum. [#2468]
+  - `body::None` struct. [#2468]
+  - Re-export `http` crate's `Error` type as `error::HttpError`. [#2171]
+- Variants:
+  - `ContentEncoding::Zstd` along with . [#2244]
+  - `Protocol::Http3` for future compatibility and also mark `#[non_exhaustive]`. [00ba8d55]
+- Methods:
+  - `ContentEncoding::to_header_value()`. [#2501]
+  - `header::QualityItem::{max, min}()`. [#2486]
+  - `header::QualityItem::zero()` that uses `Quality::ZERO`. [#2501]
+  - `HeaderMap::drain()` as an efficient draining iterator. [#1964]
+  - `HeaderMap::len_keys()` has the behavior of the old `len` method. [#1964]
+  - `MessageBody::boxed` trait method for wrapping boxing types efficiently. [#2520]
+  - `MessageBody::try_into_bytes` trait method, with default implementation, for optimizations on body types that complete in exactly one poll. [#2522]
+  - `Request::conn_data()`. [#2491]
+  - `Request::take_conn_data()`. [#2491]
+  - `Request::take_req_data()`. [#2487]
+  - `Response::{ok, bad_request, not_found, internal_server_error}()`. [#2159]
+  - `Response::into_body()` that consumes response and returns body type. [#2201]
+  - `Response::map_into_boxed_body()`. [#2468]
+  - `ResponseBuilder::append_header()` method which allows using typed and untyped headers. [#1869]
+  - `ResponseBuilder::insert_header()` method which allows using typed and untyped headers. [#1869]
+  - `ResponseHead::set_camel_case_headers()`. [#2587]
+  - `TestRequest::insert_header()` method which allows using typed and untyped headers. [#1869]
+- Implementations:
+  - Implement `Clone for ws::HandshakeError`. [#2468]
+  - Implement `Clone` for `body::AnyBody<S> where S: Clone`. [#2448]
+  - Implement `Clone` for `RequestHead`. [#2487]
+  - Implement `Clone` for `ResponseHead`. [#2585]
+  - Implement `Copy` for `QualityItem<T> where T: Copy`. [#2501]
+  - Implement `Default` for `ContentEncoding`. [#1912]
+  - Implement `Default` for `HttpServiceBuilder`. [#2611]
+  - Implement `Default` for `KeepAlive`. [#2611]
+  - Implement `Default` for `Response`. [#2201]
+  - Implement `Default` for `ws::Codec`. [#1920]
+  - Implement `Display` for `header::Quality`. [#2486]
+  - Implement `Eq` for `header::ContentEncoding`. [#2501]
+  - Implement `ExactSizeIterator` and `FusedIterator` for all `HeaderMap` iterators. [#2470]
+  - Implement `From<Duration>` for `KeepAlive`. [#2611]
+  - Implement `From<Option<Duration>>` for `KeepAlive`. [#2611]
+  - Implement `From<Vec<u8>>` for `Response<Vec<u8>>`. [#2625]
+  - Implement `FromStr` for `ContentEncoding`. [#1912]
+  - Implement `Header` for `ContentEncoding`. [#1912]
+  - Implement `IntoHeaderValue` for `ContentEncoding`. [#1912]
+  - Implement `IntoIterator` for `HeaderMap`. [#1964]
+  - Implement `MessageBody` for `bytestring::ByteString`. [#2468]
+  - Implement `MessageBody` for `Pin<Box<T>> where T: MessageBody`. [#2152]
+- Misc:
+  - Re-export `StatusCode`, `Method`, `Version` and `Uri` at the crate root. [#2171]
+  - Re-export `ContentEncoding` and `ConnectionType` at the crate root. [#2171]
+  - `Quality::ZERO` associated constant equivalent to `q=0`. [#2501]
+  - `header::Quality::{MAX, MIN}` associated constants equivalent to `q=1` and `q=0.001`, respectively. [#2486]
+  - Timeout for canceling HTTP/2 server side connection handshake. Configurable with `ServiceConfig::client_timeout`; defaults to 5 seconds. [#2483]
+  - `#[must_use]` for `ws::Codec` to prevent subtle bugs. [#1920]
+
+### Changed
+- Traits:
+  - Rename `IntoHeaderValue => TryIntoHeaderValue`. [#2510]
+  - `MessageBody` now has an associated `Error` type. [#2183]
+- Types:
+  - `Protocol` enum is now marked `#[non_exhaustive]`.
+  - `error::DispatcherError` enum is now marked `#[non_exhaustive]`. [#2624]
+  - `ContentEncoding` is now marked `#[non_exhaustive]`. [#2377]
+  - Error enums are marked `#[non_exhaustive]`. [#2161]
+  - Rename `PayloadStream` to `BoxedPayloadStream`. [#2545]
+  - The body type parameter of `Response` no longer has a default. [#2152]
+- Enum Variants:
+  - Rename `ContentEncoding::{Br => Brotli}`. [#2501]
+  - `Payload` inner fields are now named. [#2545]
+  - `ws::Message::Text` now contains a `bytestring::ByteString`. [#1864]
+- Methods:
+  - Rename `ServiceConfig::{client_timer_expire => client_request_deadline}`. [#2611]
+  - Rename `ServiceConfig::{client_disconnect_timer => client_disconnect_deadline}`. [#2611]
+  - Rename `h1::Codec::{keepalive => keep_alive}`. [#2611]
+  - Rename `h1::Codec::{keepalive_enabled => keep_alive_enabled}`. [#2611]
+  - Rename `h1::ClientCodec::{keepalive => keep_alive}`. [#2611]
+  - Rename `h1::ClientPayloadCodec::{keepalive => keep_alive}`. [#2611]
+  - Rename `header::EntityTag::{weak => new_weak, strong => new_strong}`. [#2565]
+  - Rename `TryIntoHeaderValue::{try_into => try_into_value}` to avoid ambiguity with std `TryInto` trait. [#1894]
+  - Deadline methods in `ServiceConfig` now return `std::time::Instant`s instead of Tokio's wrapper type. [#2611]
+  - Places in `Response` where `ResponseBody<B>` was received or returned now simply use `B`. [#2201]
+  - `encoding::Encoder::response` now returns `AnyBody<Encoder<B>>`. [#2448]
+  - `Extensions::insert` returns replaced item. [#1904]
+  - `HeaderMap::get_all` now returns a `std::slice::Iter`. [#2527]
+  - `HeaderMap::insert` now returns iterator of removed values. [#1964]
+  - `HeaderMap::len` now returns number of values instead of number of keys. [#1964]
+  - `HeaderMap::remove` now returns iterator of removed values. [#1964]
+  - `ResponseBuilder::body(B)` now returns `Response<EitherBody<B>>`. [#2468]
+  - `ResponseBuilder::content_type` now takes an `impl TryIntoHeaderValue` to support using typed `mime` types. [#1894]
+  - `ResponseBuilder::finish()` now returns `Response<EitherBody<()>>`. [#2468]
+  - `ResponseBuilder::json` now takes `impl Serialize`. [#2052]
+  - `ResponseBuilder::message_body` now returns a `Result`. [#2201]∑
+  - `ServiceConfig::keep_alive` now returns a `KeepAlive`. [#2611]
+  - `ws::hash_key` now returns array. [#2035]
+- Trait Implementations:
+  - Implementation of `Stream` for `Payload` no longer requires the `Stream` variant be `Unpin`. [#2545]
+  - Implementation of `Future` for `h1::SendResponse` no longer requires the body type be `Unpin`. [#2545]
+  - Implementation of `Stream` for `encoding::Decoder` no longer requires the stream type be `Unpin`. [#2545]
+  - Implementation of `From` for error types now return a `Response<BoxBody>`. [#2468]
+- Misc:
+  - `header` module is now public. [#2171]
+  - `uri` module is now public. [#2171]
+  - Request-local data container is no longer part of a `RequestHead`. Instead it is a distinct part of a `Request`. [#2487]
+  - All error trait bounds in server service builders have changed from `Into<Error>` to `Into<Response<BoxBody>>`. [#2253]
+  - All error trait bounds in message body and stream impls changed from `Into<Error>` to `Into<Box<dyn std::error::Error>>`. [#2253]
+  - Guarantee ordering of `header::GetAll` iterator to be same as insertion order. [#2467]
+  - Connection data set through the `on_connect_ext` callbacks is now accessible only from the new `Request::conn_data()` method. [#2491]
+  - Brotli (de)compression support is now provided by the `brotli` crate. [#2538]
+  - Minimum supported Rust version (MSRV) is now 1.54.
+
+### Fixed
+- A `Vary` header is now correctly sent along with compressed content. [#2501]
+- HTTP/1.1 dispatcher correctly uses client request timeout. [#2611]
+- Fixed issue where handlers that took payload but then dropped without reading it to EOF it would cause keep-alive connections to become stuck. [#2624]
+- `ContentEncoding`'s `Identity` variant can now be parsed from a string. [#2501]
+- `HttpServer::{listen_rustls(), bind_rustls()}` now honor the ALPN protocols in the configuration parameter. [#2226]
+- Remove unnecessary `Into<Error>` bound on `Encoder` body types. [#2375]
+- Remove unnecessary `Unpin` bound on `ResponseBuilder::streaming`. [#2253]
+- `BodyStream` and `SizedStream` are no longer restricted to `Unpin` types. [#2152]
+- Fixed slice creation pointing to potential uninitialized data on h1 encoder. [#2364]
+- Fixed quality parse error in Accept-Encoding header. [#2344]
+
+### Removed
+- Crate Features:
+  - `compress` feature. [#2065]
+  - `cookies` feature. [#2065]
+  - `trust-dns` feature. [#2425]
+  - `actors` optional feature and trait implementation for `actix` types. [#1969]
+- Functions:
+  - `header::qitem` helper. Replaced with `header::QualityItem::max`. [#2486]
+- Types:
+  - `body::Body`; replaced with `EitherBody` and `BoxBody`. [#2468]
+  - `body::ResponseBody`. [#2446]
+  - `ConnectError::SslHandshakeError` and re-export of `HandshakeError`. Due to the removal of this type from `tokio-openssl` crate. OpenSSL handshake error now returns `ConnectError::SslError`. [#1813]
+  - `error::Canceled` re-export. [#1994]
+  - `error::Result` type alias. [#2201]
+  - `error::BlockingError` [#2660]
+  - `InternalError` and all the error types it constructed were moved up to `actix-web`. [#2215]
+  - Typed HTTP headers; they have moved up to `actix-web`. [2094]
+  - Re-export of `http` crate's `HeaderMap` types in addition to ours. [#2171]
+- Enum Variants:
+  - `body::BodySize::Empty`; an empty body can now only be represented as a `Sized(0)` variant. [#2446]
+  - `ContentEncoding::Auto`. [#2501]
+  - `EncoderError::Boxed`. [#2446]
+- Methods:
+  - `ContentEncoding::is_compression()`. [#2501]
+  - `h1::Payload::readany()`. [#2545]
+  - `HttpMessage::cookie[s]()` trait methods. [#2065]
+  - `HttpServiceBuilder::new()`; use `default` instead. [#2611]
+  - `on_connect` (previously deprecated) methods have been removed; use `on_connect_ext`. [#1857]
+  - `Response::build_from()`. [#2159]
+  - `Response::error()` [#2205]
+  - `Response::take_body()` and old `Response::into_body()` method that casted body type. [#2201]
+  - `Response`'s status code builders. [#2159]
+  - `ResponseBuilder::{if_true, if_some}()` (previously deprecated). [#2148]
+  - `ResponseBuilder::{set, set_header}()`; use `ResponseBuilder::insert_header()`. [#1869]
+  - `ResponseBuilder::extensions[_mut]()`. [#2585]
+  - `ResponseBuilder::header()`; use `ResponseBuilder::append_header()`. [#1869]
+  - `ResponseBuilder::json()`. [#2148]
+  - `ResponseBuilder::json2()`. [#1903]
+  - `ResponseBuilder::streaming()`. [#2468]
+  - `ResponseHead::extensions[_mut]()`. [#2585]
+  - `ServiceConfig::{client_timer, keep_alive_timer}()`. [#2611]
+  - `TestRequest::with_hdr()`; use `TestRequest::default().insert_header()`. [#1869]
+  - `TestRequest::with_header()`; use `TestRequest::default().insert_header()`. [#1869]
+- Trait implementations:
+  - Implementation of `Copy` for `ws::Codec`. [#1920]
+  - Implementation of `From<Option<usize>> for KeepAlive`; use `Duration`s instead. [#2611]
+  - Implementation of `From<serde_json::Value>` for `Body`. [#2148]
+  - Implementation of `From<usize> for KeepAlive`; use `Duration`s instead. [#2611]
+  - Implementation of `Future` for `Response`. [#2201]
+  - Implementation of `Future` for `ResponseBuilder`. [#2468]
+  - Implementation of `Into<Error>` for `Response<Body>`. [#2215]
+  - Implementation of `Into<Error>` for `ResponseBuilder`. [#2215]
+  - Implementation of `ResponseError` for `actix_utils::timeout::TimeoutError`. [#2127]
+  - Implementation of `ResponseError` for `CookieParseError`. [#2065]
+  - Implementation of `TryFrom<u16>` for `header::Quality`. [#2486]
+- Misc:
+  - `http` module; most everything it contained is exported at the crate root. [#2488]
+  - `cookies` module (re-export). [#2065]
+  - `client` module. Connector types now live in `awc`. [#2425]
+  - `error` field from `Response`. [#2205]
+  - `downcast` and `downcast_get_type_id` macros. [#2291]
+  - Down-casting for `MessageBody` types; use standard `Any` trait. [#2183]
+
+
+[#1813]: https://github.com/actix/actix-web/pull/1813
+[#1845]: https://github.com/actix/actix-web/pull/1845
+[#1857]: https://github.com/actix/actix-web/pull/1857
+[#1864]: https://github.com/actix/actix-web/pull/1864
+[#1869]: https://github.com/actix/actix-web/pull/1869
+[#1878]: https://github.com/actix/actix-web/pull/1878
+[#1894]: https://github.com/actix/actix-web/pull/1894
+[#1903]: https://github.com/actix/actix-web/pull/1903
+[#1904]: https://github.com/actix/actix-web/pull/1904
+[#1912]: https://github.com/actix/actix-web/pull/1912
+[#1920]: https://github.com/actix/actix-web/pull/1920
+[#1964]: https://github.com/actix/actix-web/pull/1964
+[#1969]: https://github.com/actix/actix-web/pull/1969
+[#1981]: https://github.com/actix/actix-web/pull/1981
+[#1994]: https://github.com/actix/actix-web/pull/1994
+[#2035]: https://github.com/actix/actix-web/pull/2035
+[#2052]: https://github.com/actix/actix-web/pull/2052
+[#2065]: https://github.com/actix/actix-web/pull/2065
+[#2094]: https://github.com/actix/actix-web/pull/2094
+[#2127]: https://github.com/actix/actix-web/pull/2127
+[#2148]: https://github.com/actix/actix-web/pull/2148
+[#2152]: https://github.com/actix/actix-web/pull/2152
+[#2158]: https://github.com/actix/actix-web/pull/2158
+[#2159]: https://github.com/actix/actix-web/pull/2159
+[#2161]: https://github.com/actix/actix-web/pull/2161
+[#2171]: https://github.com/actix/actix-web/pull/2171
+[#2183]: https://github.com/actix/actix-web/pull/2183
+[#2196]: https://github.com/actix/actix-web/pull/2196
+[#2201]: https://github.com/actix/actix-web/pull/2201
+[#2205]: https://github.com/actix/actix-web/pull/2205
+[#2215]: https://github.com/actix/actix-web/pull/2215
+[#2244]: https://github.com/actix/actix-web/pull/2244
+[#2250]: https://github.com/actix/actix-web/pull/2250
+[#2253]: https://github.com/actix/actix-web/pull/2253
+[#2291]: https://github.com/actix/actix-web/pull/2291
+[#2344]: https://github.com/actix/actix-web/pull/2344
+[#2364]: https://github.com/actix/actix-web/pull/2364
+[#2375]: https://github.com/actix/actix-web/pull/2375
+[#2377]: https://github.com/actix/actix-web/pull/2377
+[#2414]: https://github.com/actix/actix-web/pull/2414
+[#2425]: https://github.com/actix/actix-web/pull/2425
+[#2442]: https://github.com/actix/actix-web/pull/2442
+[#2446]: https://github.com/actix/actix-web/pull/2446
+[#2448]: https://github.com/actix/actix-web/pull/2448
+[#2456]: https://github.com/actix/actix-web/pull/2456
+[#2467]: https://github.com/actix/actix-web/pull/2467
+[#2468]: https://github.com/actix/actix-web/pull/2468
+[#2470]: https://github.com/actix/actix-web/pull/2470
+[#2474]: https://github.com/actix/actix-web/pull/2474
+[#2483]: https://github.com/actix/actix-web/pull/2483
+[#2486]: https://github.com/actix/actix-web/pull/2486
+[#2487]: https://github.com/actix/actix-web/pull/2487
+[#2488]: https://github.com/actix/actix-web/pull/2488
+[#2491]: https://github.com/actix/actix-web/pull/2491
+[#2497]: https://github.com/actix/actix-web/pull/2497
+[#2501]: https://github.com/actix/actix-web/pull/2501
+[#2510]: https://github.com/actix/actix-web/pull/2510
+[#2520]: https://github.com/actix/actix-web/pull/2520
+[#2522]: https://github.com/actix/actix-web/pull/2522
+[#2527]: https://github.com/actix/actix-web/pull/2527
+[#2538]: https://github.com/actix/actix-web/pull/2538
+[#2545]: https://github.com/actix/actix-web/pull/2545
+[#2565]: https://github.com/actix/actix-web/pull/2565
+[#2585]: https://github.com/actix/actix-web/pull/2585
+[#2587]: https://github.com/actix/actix-web/pull/2587
+[#2611]: https://github.com/actix/actix-web/pull/2611
+[#2618]: https://github.com/actix/actix-web/pull/2618
+[#2624]: https://github.com/actix/actix-web/pull/2624
+[#2625]: https://github.com/actix/actix-web/pull/2625
+[#2660]: https://github.com/actix/actix-web/pull/2660
+[00ba8d55]: https://github.com/actix/actix-web/commit/00ba8d55492284581695d824648590715a8bd386
+
+
+<details>
+<summary>3.0.0 Pre-Releases</summary>
+
+## 3.0.0-rc.4 - 2022-02-22
+### Fixed
+- Fix h1 dispatcher panic. [1ce58ecb]
+
+[1ce58ecb]: https://github.com/actix/actix-web/commit/1ce58ecb305c60e51db06e6c913b7a1344e229ca
+
+
+## 3.0.0-rc.3 - 2022-02-16
+- No significant changes since `3.0.0-rc.2`.
+
+
 ## 3.0.0-rc.2 - 2022-02-08
 ### Added
 - Implement `From<Vec<u8>>` for `Response<Vec<u8>>`. [#2625]
@ -94,7 +389,7 @@


 ## 3.0.0-beta.17 - 2021-12-27
-### Changes
+### Changed
 - `HeaderMap::get_all` now returns a `std::slice::Iter`. [#2527]
 - `Payload` inner fields are now named. [#2545]
 - `impl Stream` for `Payload` no longer requires the `Stream` variant be `Unpin`. [#2545]
@ -317,7 +612,7 @@
 - `Response::{ok, bad_request, not_found, internal_server_error}`. [#2159]
 - Helper `body::to_bytes` for async collecting message body into Bytes. [#2158]

-### Changes
+### Changed
 - The type parameter of `Response` no longer has a default. [#2152]
 - The `Message` variant of `body::Body` is now `Pin<Box<dyn MessageBody>>`. [#2152]
 - `BodyStream` and `SizedStream` are no longer restricted to Unpin types. [#2152]
@ -461,6 +756,8 @@
 [#1864]: https://github.com/actix/actix-web/pull/1864
 [#1878]: https://github.com/actix/actix-web/pull/1878

+</details>
+

 ## 2.2.2 - 2022-01-21
 ### Changed
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-http"
-version = "3.0.0-rc.2"
+version = "3.0.0"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "Rob Ede <robjtede@icloud.com>",
@ -20,7 +20,7 @@ edition = "2018"

 [package.metadata.docs.rs]
 # features that docs.rs will build with
-features = ["openssl", "rustls", "compress-brotli", "compress-gzip", "compress-zstd"]
+features = ["http2", "openssl", "rustls", "compress-brotli", "compress-gzip", "compress-zstd"]

 [lib]
 name = "actix_http"
@ -57,7 +57,7 @@ __compress = []

 [dependencies]
 actix-service = "2"
-actix-codec = "0.4.1"
+actix-codec = "0.5"
 actix-utils = "3"
 actix-rt = { version = "2.2", default-features = false }

@ -89,7 +89,7 @@ rand = { version = "0.8", optional = true }
 sha-1 = { version = "0.10", optional = true }

 # openssl/rustls
-actix-tls = { version = "3.0.0", default-features = false, optional = true }
+actix-tls = { version = "3", default-features = false, optional = true }

 # compress-*
 brotli = { version = "3.3.3", optional = true }
@ -97,10 +97,10 @@ flate2 = { version = "1.0.13", optional = true }
 zstd = { version = "0.10", optional = true }

 [dev-dependencies]
-actix-http-test = { version = "3.0.0-beta.12", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.13", features = ["openssl"] }
 actix-server = "2"
-actix-tls = { version = "3.0.0", features = ["openssl"] }
-actix-web = "4.0.0-rc.3"
+actix-tls = { version = "3", features = ["openssl"] }
+actix-web = "4.0.0"

 async-stream = "0.3"
 criterion = { version = "0.3", features = ["html_reports"] }
--- a/actix-http/README.md
+++ b/actix-http/README.md
@ -3,11 +3,11 @@
 > HTTP primitives for the Actix ecosystem.

 [![crates.io](https://img.shields.io/crates/v/actix-http?label=latest)](https://crates.io/crates/actix-http)
-[![Documentation](https://docs.rs/actix-http/badge.svg?version=3.0.0-rc.2)](https://docs.rs/actix-http/3.0.0-rc.2)
+[![Documentation](https://docs.rs/actix-http/badge.svg?version=3.0.0)](https://docs.rs/actix-http/3.0.0)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-http/3.0.0-rc.2/status.svg)](https://deps.rs/crate/actix-http/3.0.0-rc.2)
+[![dependency status](https://deps.rs/crate/actix-http/3.0.0/status.svg)](https://deps.rs/crate/actix-http/3.0.0)
 [![Download](https://img.shields.io/crates/d/actix-http.svg)](https://crates.io/crates/actix-http)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

--- a/actix-http/src/body/body_stream.rs
+++ b/actix-http/src/body/body_stream.rs
@ -80,7 +80,7 @@ mod tests {
    use futures_core::ready;
    use futures_util::{stream, FutureExt as _};
    use pin_project_lite::pin_project;
-    use static_assertions::{assert_impl_all, assert_not_impl_all};
+    use static_assertions::{assert_impl_all, assert_not_impl_any};

    use super::*;
    use crate::body::to_bytes;
@ -91,10 +91,10 @@ mod tests {
    assert_impl_all!(BodyStream<stream::Empty<Result<Bytes, Infallible>>>: MessageBody);
    assert_impl_all!(BodyStream<stream::Repeat<Result<Bytes, Infallible>>>: MessageBody);

-    assert_not_impl_all!(BodyStream<stream::Empty<Bytes>>: MessageBody);
-    assert_not_impl_all!(BodyStream<stream::Repeat<Bytes>>: MessageBody);
+    assert_not_impl_any!(BodyStream<stream::Empty<Bytes>>: MessageBody);
+    assert_not_impl_any!(BodyStream<stream::Repeat<Bytes>>: MessageBody);
    // crate::Error is not Clone
-    assert_not_impl_all!(BodyStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);
+    assert_not_impl_any!(BodyStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);

    #[actix_rt::test]
    async fn skips_empty_chunks() {
--- a/actix-http/src/body/boxed.rs
+++ b/actix-http/src/body/boxed.rs
@ -105,14 +105,13 @@ impl MessageBody for BoxBody {
 #[cfg(test)]
 mod tests {

-    use static_assertions::{assert_impl_all, assert_not_impl_all};
+    use static_assertions::{assert_impl_all, assert_not_impl_any};

    use super::*;
    use crate::body::to_bytes;

-    assert_impl_all!(BoxBody: MessageBody, fmt::Debug, Unpin);
-
-    assert_not_impl_all!(BoxBody: Send, Sync, Unpin);
+    assert_impl_all!(BoxBody: fmt::Debug, MessageBody, Unpin);
+    assert_not_impl_any!(BoxBody: Send, Sync);

    #[actix_rt::test]
    async fn nested_boxed_body() {
--- a/actix-http/src/body/either.rs
+++ b/actix-http/src/body/either.rs
@ -10,6 +10,17 @@ use super::{BodySize, BoxBody, MessageBody};
 use crate::Error;

 pin_project! {
+    /// An "either" type specialized for body types.
+    ///
+    /// It is common, in middleware especially, to conditionally return an inner service's unknown/
+    /// generic body `B` type or return early with a new response. This type's "right" variant
+    /// defaults to `BoxBody` since error responses are the common case.
+    ///
+    /// For example, middleware will often have `type Response = ServiceResponse<EitherBody<B>>`.
+    /// This means that the inner service's response body type maps to the `Left` variant and the
+    /// middleware's own error responses use the default `Right` variant of `BoxBody`. Of course,
+    /// there's no reason it couldn't use `EitherBody<B, String>` instead if its alternative
+    /// responses have a known type.
    #[project = EitherBodyProj]
    #[derive(Debug, Clone)]
    pub enum EitherBody<L, R = BoxBody> {
@ -22,7 +33,10 @@ pin_project! {
 }

 impl<L> EitherBody<L, BoxBody> {
-    /// Creates new `EitherBody` using left variant and boxed right variant.
+    /// Creates new `EitherBody` left variant with a boxed right variant.
+    ///
+    /// If the expected `R` type will be inferred and is not `BoxBody` then use the
+    /// [`left`](Self::left) constructor instead.
    #[inline]
    pub fn new(body: L) -> Self {
        Self::Left { body }
--- a/actix-http/src/body/message_body.rs
+++ b/actix-http/src/body/message_body.rs
@ -19,7 +19,7 @@ use super::{BodySize, BoxBody};
 /// It is not usually necessary to create custom body types, this trait is already [implemented for
 /// a large number of sensible body types](#foreign-impls) including:
 /// - Empty body: `()`
-/// - Text-based: `String`, `&'static str`, `ByteString`.
+/// - Text-based: `String`, `&'static str`, [`ByteString`](https://docs.rs/bytestring/1).
 /// - Byte-based: `Bytes`, `BytesMut`, `Vec<u8>`, `&'static [u8]`;
 /// - Streams: [`BodyStream`](super::BodyStream), [`SizedStream`](super::SizedStream)
 ///
--- a/actix-http/src/body/sized_stream.rs
+++ b/actix-http/src/body/sized_stream.rs
@ -76,7 +76,7 @@ mod tests {
    use actix_rt::pin;
    use actix_utils::future::poll_fn;
    use futures_util::stream;
-    use static_assertions::{assert_impl_all, assert_not_impl_all};
+    use static_assertions::{assert_impl_all, assert_not_impl_any};

    use super::*;
    use crate::body::to_bytes;
@ -87,10 +87,10 @@ mod tests {
    assert_impl_all!(SizedStream<stream::Empty<Result<Bytes, Infallible>>>: MessageBody);
    assert_impl_all!(SizedStream<stream::Repeat<Result<Bytes, Infallible>>>: MessageBody);

-    assert_not_impl_all!(SizedStream<stream::Empty<Bytes>>: MessageBody);
-    assert_not_impl_all!(SizedStream<stream::Repeat<Bytes>>: MessageBody);
+    assert_not_impl_any!(SizedStream<stream::Empty<Bytes>>: MessageBody);
+    assert_not_impl_any!(SizedStream<stream::Repeat<Bytes>>: MessageBody);
    // crate::Error is not Clone
-    assert_not_impl_all!(SizedStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);
+    assert_not_impl_any!(SizedStream<stream::Repeat<Result<Bytes, crate::Error>>>: MessageBody);

    #[actix_rt::test]
    async fn skips_empty_chunks() {
--- a/actix-http/src/encoding/decoder.rs
+++ b/actix-http/src/encoding/decoder.rs
@ -19,7 +19,7 @@ use zstd::stream::write::Decoder as ZstdDecoder;

 use crate::{
    encoding::Writer,
-    error::{BlockingError, PayloadError},
+    error::PayloadError,
    header::{ContentEncoding, HeaderMap, CONTENT_ENCODING},
 };

@ -47,14 +47,17 @@ where
            ContentEncoding::Brotli => Some(ContentDecoder::Brotli(Box::new(
                brotli::DecompressorWriter::new(Writer::new(), 8_096),
            ))),
+
            #[cfg(feature = "compress-gzip")]
            ContentEncoding::Deflate => Some(ContentDecoder::Deflate(Box::new(
                ZlibDecoder::new(Writer::new()),
            ))),
+
            #[cfg(feature = "compress-gzip")]
            ContentEncoding::Gzip => Some(ContentDecoder::Gzip(Box::new(GzDecoder::new(
                Writer::new(),
            )))),
+
            #[cfg(feature = "compress-zstd")]
            ContentEncoding::Zstd => Some(ContentDecoder::Zstd(Box::new(
                ZstdDecoder::new(Writer::new()).expect(
@ -98,8 +101,12 @@ where

        loop {
            if let Some(ref mut fut) = this.fut {
-                let (chunk, decoder) =
-                    ready!(Pin::new(fut).poll(cx)).map_err(|_| BlockingError)??;
+                let (chunk, decoder) = ready!(Pin::new(fut).poll(cx)).map_err(|_| {
+                    PayloadError::Io(io::Error::new(
+                        io::ErrorKind::Other,
+                        "Blocking task was cancelled unexpectedly",
+                    ))
+                })??;

                *this.decoder = Some(decoder);
                this.fut.take();
@ -159,10 +166,13 @@ where
 enum ContentDecoder {
    #[cfg(feature = "compress-gzip")]
    Deflate(Box<ZlibDecoder<Writer>>),
+
    #[cfg(feature = "compress-gzip")]
    Gzip(Box<GzDecoder<Writer>>),
+
    #[cfg(feature = "compress-brotli")]
    Brotli(Box<brotli::DecompressorWriter<Writer>>),
+
    // We need explicit 'static lifetime here because ZstdDecoder need lifetime
    // argument, and we use `spawn_blocking` in `Decoder::poll_next` that require `FnOnce() -> R + Send + 'static`
    #[cfg(feature = "compress-zstd")]
--- a/actix-http/src/encoding/encoder.rs
+++ b/actix-http/src/encoding/encoder.rs
@ -23,7 +23,6 @@ use zstd::stream::write::Encoder as ZstdEncoder;
 use super::Writer;
 use crate::{
    body::{self, BodySize, MessageBody},
-    error::BlockingError,
    header::{self, ContentEncoding, HeaderValue, CONTENT_ENCODING},
    ResponseHead, StatusCode,
 };
@ -173,7 +172,12 @@ where

            if let Some(ref mut fut) = this.fut {
                let mut encoder = ready!(Pin::new(fut).poll(cx))
-                    .map_err(|_| EncoderError::Blocking(BlockingError))?
+                    .map_err(|_| {
+                        EncoderError::Io(io::Error::new(
+                            io::ErrorKind::Other,
+                            "Blocking task was cancelled unexpectedly",
+                        ))
+                    })?
                    .map_err(EncoderError::Io)?;

                let chunk = encoder.take();
@ -400,12 +404,11 @@ fn new_brotli_compressor() -> Box<brotli::CompressorWriter<Writer>> {
 #[derive(Debug, Display)]
 #[non_exhaustive]
 pub enum EncoderError {
+    /// Wrapped body stream error.
    #[display(fmt = "body")]
    Body(Box<dyn StdError>),

-    #[display(fmt = "blocking")]
-    Blocking(BlockingError),
-
+    /// Generic I/O error.
    #[display(fmt = "io")]
    Io(io::Error),
 }
@ -414,7 +417,6 @@ impl StdError for EncoderError {
    fn source(&self) -> Option<&(dyn StdError + 'static)> {
        match self {
            EncoderError::Body(err) => Some(&**err),
-            EncoderError::Blocking(err) => Some(err),
            EncoderError::Io(err) => Some(err),
        }
    }
--- a/actix-http/src/error.rs
+++ b/actix-http/src/error.rs
@ -51,7 +51,7 @@ impl Error {
        Self::new(Kind::SendResponse)
    }

-    #[allow(unused)] // reserved for future use (TODO: remove allow when being used)
+    #[allow(unused)] // available for future use
    pub(crate) fn new_io() -> Self {
        Self::new(Kind::Io)
    }
@ -108,8 +108,10 @@ pub(crate) enum Kind {

 impl fmt::Debug for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        // TODO: more detail
-        f.write_str("actix_http::Error")
+        f.debug_struct("actix_http::Error")
+            .field("kind", &self.inner.kind)
+            .field("cause", &self.inner.cause)
+            .finish()
    }
 }

@ -250,12 +252,6 @@ impl From<ParseError> for Response<BoxBody> {
    }
 }

-/// A set of errors that can occur running blocking tasks in thread pool.
-#[derive(Debug, Display, Error)]
-#[display(fmt = "Blocking thread pool is gone")]
-// TODO: non-exhaustive
-pub struct BlockingError;
-
 /// A set of errors that can occur during payload parsing.
 #[derive(Debug, Display)]
 #[non_exhaustive]
@ -293,13 +289,13 @@ impl std::error::Error for PayloadError {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        match self {
            PayloadError::Incomplete(None) => None,
-            PayloadError::Incomplete(Some(err)) => Some(err as &dyn std::error::Error),
+            PayloadError::Incomplete(Some(err)) => Some(err),
            PayloadError::EncodingCorrupted => None,
            PayloadError::Overflow => None,
            PayloadError::UnknownLength => None,
            #[cfg(feature = "http2")]
-            PayloadError::Http2Payload(err) => Some(err as &dyn std::error::Error),
-            PayloadError::Io(err) => Some(err as &dyn std::error::Error),
+            PayloadError::Http2Payload(err) => Some(err),
+            PayloadError::Io(err) => Some(err),
        }
    }
 }
@ -323,15 +319,6 @@ impl From<io::Error> for PayloadError {
    }
 }

-impl From<BlockingError> for PayloadError {
-    fn from(_: BlockingError) -> Self {
-        PayloadError::Io(io::Error::new(
-            io::ErrorKind::Other,
-            "Operation is canceled",
-        ))
-    }
-}
-
 impl From<PayloadError> for Error {
    fn from(err: PayloadError) -> Self {
        Self::new_payload().with_cause(err)
@ -386,7 +373,6 @@ pub enum DispatchError {
 impl StdError for DispatchError {
    fn source(&self) -> Option<&(dyn StdError + 'static)> {
        match self {
-            // TODO: error source extraction?
            DispatchError::Service(_res) => None,
            DispatchError::Body(err) => Some(&**err),
            DispatchError::Io(err) => Some(err),
--- a/actix-http/src/h1/dispatcher.rs
+++ b/actix-http/src/h1/dispatcher.rs
@ -931,10 +931,16 @@ where
                "dispatcher should not be in keep-alive phase if state is not none: {:?}",
                this.state,
            );
-            debug_assert!(
-                this.write_buf.is_empty(),
-                "dispatcher should not be in keep-alive phase if write_buf is not empty",
-            );
+
+            // Assert removed by @robjtede on account of issue #2655. There are cases where an I/O
+            // flush can be pending after entering the keep-alive state causing the subsequent flush
+            // wake up to panic here. This appears to be a Linux-only problem. Leaving original code
+            // below for posterity because a simple and reliable test could not be found to trigger
+            // the behavior.
+            // debug_assert!(
+            //     this.write_buf.is_empty(),
+            //     "dispatcher should not be in keep-alive phase if write_buf is not empty",
+            // );

            // keep-alive timer has timed out
            if timer.as_mut().poll(cx).is_ready() {
--- a/actix-http/src/h2/dispatcher.rs
+++ b/actix-http/src/h2/dispatcher.rs
@ -25,7 +25,9 @@ use pin_project_lite::pin_project;
 use crate::{
    body::{BodySize, BoxBody, MessageBody},
    config::ServiceConfig,
-    header::{HeaderValue, CONNECTION, CONTENT_LENGTH, DATE, TRANSFER_ENCODING},
+    header::{
+        HeaderName, HeaderValue, CONNECTION, CONTENT_LENGTH, DATE, TRANSFER_ENCODING, UPGRADE,
+    },
    service::HttpFlow,
    Extensions, OnConnectData, Payload, Request, Response, ResponseHead,
 };
@ -306,13 +308,22 @@ fn prepare_response(

    // copy headers
    for (key, value) in head.headers.iter() {
-        match *key {
-            // TODO: consider skipping other headers according to:
-            //       https://datatracker.ietf.org/doc/html/rfc7540#section-8.1.2.2
-            // omit HTTP/1.x only headers
-            CONNECTION | TRANSFER_ENCODING => continue,
-            CONTENT_LENGTH if skip_len => continue,
-            DATE => has_date = true,
+        match key {
+            // omit HTTP/1.x only headers according to:
+            // https://datatracker.ietf.org/doc/html/rfc7540#section-8.1.2.2
+            &CONNECTION | &TRANSFER_ENCODING | &UPGRADE => continue,
+
+            &CONTENT_LENGTH if skip_len => continue,
+            &DATE => has_date = true,
+
+            // omit HTTP/1.x only headers according to:
+            // https://datatracker.ietf.org/doc/html/rfc7540#section-8.1.2.2
+            hdr if hdr == HeaderName::from_static("keep-alive")
+                || hdr == HeaderName::from_static("proxy-connection") =>
+            {
+                continue
+            }
+
            _ => {}
        }

--- a/actix-http/src/lib.rs
+++ b/actix-http/src/lib.rs
@ -3,6 +3,7 @@
 //! ## Crate Features
 //! | Feature             | Functionality                               |
 //! | ------------------- | ------------------------------------------- |
+//! | `http2`             | HTTP/2 support via [h2].                    |
 //! | `openssl`           | TLS support via [OpenSSL].                  |
 //! | `rustls`            | TLS support via [rustls].                   |
 //! | `compress-brotli`   | Payload compression support: Brotli.        |
@ -10,6 +11,7 @@
 //! | `compress-zstd`     | Payload compression support: Zstd.          |
 //! | `trust-dns`         | Use [trust-dns] as the client DNS resolver. |
 //!
+//! [h2]: https://crates.io/crates/h2
 //! [OpenSSL]: https://crates.io/crates/openssl
 //! [rustls]: https://crates.io/crates/rustls
 //! [trust-dns]: https://crates.io/crates/trust-dns
--- a/actix-http/src/ws/mask.rs
+++ b/actix-http/src/ws/mask.rs
@ -47,40 +47,6 @@ pub fn apply_mask_fast32(buf: &mut [u8], mask: [u8; 4]) {
 mod tests {
    use super::*;

-    // legacy test from old apply mask test. kept for now for back compat test.
-    // TODO: remove it and favor the other test.
-    #[test]
-    fn test_apply_mask_legacy() {
-        let mask = [0x6d, 0xb6, 0xb2, 0x80];
-
-        let unmasked = vec![
-            0xf3, 0x00, 0x01, 0x02, 0x03, 0x80, 0x81, 0x82, 0xff, 0xfe, 0x00, 0x17, 0x74, 0xf9,
-            0x12, 0x03,
-        ];
-
-        // Check masking with proper alignment.
-        {
-            let mut masked = unmasked.clone();
-            apply_mask_fallback(&mut masked, mask);
-
-            let mut masked_fast = unmasked.clone();
-            apply_mask(&mut masked_fast, mask);
-
-            assert_eq!(masked, masked_fast);
-        }
-
-        // Check masking without alignment.
-        {
-            let mut masked = unmasked.clone();
-            apply_mask_fallback(&mut masked[1..], mask);
-
-            let mut masked_fast = unmasked;
-            apply_mask(&mut masked_fast[1..], mask);
-
-            assert_eq!(masked, masked_fast);
-        }
-    }
-
    #[test]
    fn test_apply_mask() {
        let mask = [0x6d, 0xb6, 0xb2, 0x80];
--- a/actix-http/tests/test_server.rs
+++ b/actix-http/tests/test_server.rs
@ -850,7 +850,8 @@ async fn not_modified_spec_h1() {
        Some(&header::HeaderValue::from_static("4")),
    );
    // server does not prevent payload from being sent but clients may choose not to read it
-    // TODO: this is probably a bug, especially since CL header can differ in length from the body
+    // TODO: this is probably a bug in the client, especially since CL header can differ in length
+    // from the body
    assert!(!srv.load_body(res).await.unwrap().is_empty());

    // TODO: add stream response tests
--- a/actix-multipart/CHANGES.md
+++ b/actix-multipart/CHANGES.md
@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx


+## 0.4.0 - 2022-02-25
+- No significant changes since `0.4.0-beta.13`.
+
+
 ## 0.4.0-beta.13 - 2022-01-31
 - No significant changes since `0.4.0-beta.12`.

--- a/actix-multipart/Cargo.toml
+++ b/actix-multipart/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-multipart"
-version = "0.4.0-beta.13"
+version = "0.4.0"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Multipart form support for Actix Web"
 keywords = ["http", "web", "framework", "async", "futures"]
@ -15,7 +15,7 @@ path = "src/lib.rs"

 [dependencies]
 actix-utils = "3.0.0"
-actix-web = { version = "4.0.0-rc.3", default-features = false }
+actix-web = { version = "4.0.0", default-features = false }

 bytes = "1"
 derive_more = "0.99.5"
@ -28,7 +28,7 @@ twoway = "0.2"

 [dev-dependencies]
 actix-rt = "2.2"
-actix-http = "3.0.0-rc.2"
+actix-http = "3.0.0"
 futures-util = { version = "0.3.7", default-features = false, features = ["alloc"] }
 tokio = { version = "1.8.4", features = ["sync"] }
 tokio-stream = "0.1"
--- a/actix-multipart/README.md
+++ b/actix-multipart/README.md
@ -3,11 +3,11 @@
 > Multipart form support for Actix Web.

 [![crates.io](https://img.shields.io/crates/v/actix-multipart?label=latest)](https://crates.io/crates/actix-multipart)
-[![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.4.0-beta.13)](https://docs.rs/actix-multipart/0.4.0-beta.13)
+[![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.4.0)](https://docs.rs/actix-multipart/0.4.0)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-multipart.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-multipart/0.4.0-beta.13/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0-beta.13)
+[![dependency status](https://deps.rs/crate/actix-multipart/0.4.0/status.svg)](https://deps.rs/crate/actix-multipart/0.4.0)
 [![Download](https://img.shields.io/crates/d/actix-multipart.svg)](https://crates.io/crates/actix-multipart)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

--- a/actix-router/CHANGES.md
+++ b/actix-router/CHANGES.md
@ -3,6 +3,77 @@
 ## Unreleased - 2021-xx-xx


+## 0.5.0 - 2022-02-22
+### Added
+- Add `Path::as_str`. [#2590]
+- Add `ResourceDef::set_name`. [#373][net#373]
+- Add `RouterBuilder::push`. [#2612]
+- Implement `IntoPatterns` for `bytestring::ByteString`. [#372][net#372]
+- Introduce `ResourceDef::join`. [#380][net#380]
+- Introduce `ResourceDef::pattern_iter` to get an iterator over all patterns in a multi-pattern resource. [#373][net#373]
+- `Resource` is now implemented for `&mut Path<_>` and `RefMut<Path<_>>`. [#2568]
+- Support `build_resource_path` on multi-pattern resources. [#2356]
+- Support multi-pattern prefixes and joins. [#2356]
+
+### Changed
+- Change signature of `ResourceDef::capture_match_info_fn` to remove `user_data` parameter. [#2612]
+- Deprecate `Path::path`. [#2590]
+- Disallow prefix routes with tail segments. [#379][net#379]
+- Enforce path separators on dynamic prefixes. [#378][net#378]
+- Minimum supported Rust version (MSRV) is now 1.54.
+- Prefix segments now always end with with a segment delimiter or end-of-input. [#2355]
+- Prefix segments with trailing slashes define a trailing empty segment. [#2355]
+- `Quoter::requote` now returns `Option<Vec<u8>>`. [#2613]
+- Re-work `IntoPatterns` trait, adding a `Patterns` enum. [#372][net#372]
+- Rename `Path::{len => segment_count}` to be more descriptive of its purpose. [#370][net#370]
+- Rename `ResourceDef::{is_prefix_match => find_match}`. [#373][net#373]
+- Rename `ResourceDef::{match_path => capture_match_info}`. [#373][net#373]
+- Rename `ResourceDef::{match_path_checked => capture_match_info_fn}`. [#373][net#373]
+- Rename `ResourceDef::{resource_path => resource_path_from_iter}`. [#371][net#371]
+- Rename `ResourceDef::{resource_path_named => resource_path_from_map}`. [#371][net#371]
+- Rename `Router::{*_checked => *_fn}`. [#373][net#373]
+- Replace `Option<U>` with `U` in `Router` API. [#2612]
+- `Resource` trait now uses an associated type, `Path`, instead of a generic parameter. [#2568]
+- `ResourceDef::pattern` now returns the first pattern in multi-pattern resources. [#2356]
+- `ResourceDef::resource_path_from_iter` now takes an `IntoIterator`. [#373][net#373]
+- Return type of `ResourceDef::name` is now `Option<&str>`. [#373][net#373]
+- Return type of `ResourceDef::pattern` is now `Option<&str>`. [#373][net#373]
+
+### Fixed
+- Fix `ResourceDef`'s `PartialEq` implementation. [#373][net#373]
+- Fix segment interpolation leaving `Path` in unintended state after matching. [#368][net#368]
+- Improve malformed path error message. [#384][net#384]
+- `PathDeserializer` now decodes all percent encoded characters in dynamic segments. [#2566]
+- Relax bounds on `Router::recognize*` and `ResourceDef::capture_match_info`. [#2612]
+- Static patterns in multi-patterns are no longer interpreted as regex. [#366][net#366]
+
+### Removed
+- `ResourceDef::name_mut`. [#373][net#373]
+- Unused `ResourceInfo`. [#2612]
+
+[#2355]: https://github.com/actix/actix-web/pull/2355
+[#2356]: https://github.com/actix/actix-web/pull/2356
+[#2566]: https://github.com/actix/actix-net/pull/2566
+[#2568]: https://github.com/actix/actix-web/pull/2568
+[#2590]: https://github.com/actix/actix-web/pull/2590
+[#2612]: https://github.com/actix/actix-web/pull/2612
+[#2613]: https://github.com/actix/actix-web/pull/2613
+[net#366]: https://github.com/actix/actix-net/pull/366
+[net#368]: https://github.com/actix/actix-net/pull/368
+[net#368]: https://github.com/actix/actix-net/pull/368
+[net#370]: https://github.com/actix/actix-net/pull/370
+[net#371]: https://github.com/actix/actix-net/pull/371
+[net#372]: https://github.com/actix/actix-net/pull/372
+[net#373]: https://github.com/actix/actix-net/pull/373
+[net#378]: https://github.com/actix/actix-net/pull/378
+[net#379]: https://github.com/actix/actix-net/pull/379
+[net#380]: https://github.com/actix/actix-net/pull/380
+[net#384]: https://github.com/actix/actix-net/pull/384
+
+
+<details>
+<summary>0.5.0 Pre-Releases</summary>
+
 ## 0.5.0-rc.3 - 2022-01-31
 - Remove unused `ResourceInfo`. [#2612]
 - Add `RouterBuilder::push`. [#2612]
@ -41,10 +112,10 @@


 ## 0.5.0-beta.2 - 2021-09-09
- Introduce `ResourceDef::join`. [#380]
- Disallow prefix routes with tail segments. [#379]
- Enforce path separators on dynamic prefixes. [#378]
- Improve malformed path error message. [#384]
+- Introduce `ResourceDef::join`. [#380][net#380]
+- Disallow prefix routes with tail segments. [#379][net#379]
+- Enforce path separators on dynamic prefixes. [#378][net#378]
+- Improve malformed path error message. [#384][net#384]
 - Prefix segments now always end with with a segment delimiter or end-of-input. [#2355]
 - Prefix segments with trailing slashes define a trailing empty segment. [#2355]
 - Support multi-pattern prefixes and joins. [#2356]
@ -52,52 +123,54 @@
 - Support `build_resource_path` on multi-pattern resources. [#2356]
 - Minimum supported Rust version (MSRV) is now 1.51.

-[#378]: https://github.com/actix/actix-net/pull/378
-[#379]: https://github.com/actix/actix-net/pull/379
-[#380]: https://github.com/actix/actix-net/pull/380
-[#384]: https://github.com/actix/actix-net/pull/384
+[net#378]: https://github.com/actix/actix-net/pull/378
+[net#379]: https://github.com/actix/actix-net/pull/379
+[net#380]: https://github.com/actix/actix-net/pull/380
+[net#384]: https://github.com/actix/actix-net/pull/384
 [#2355]: https://github.com/actix/actix-web/pull/2355
 [#2356]: https://github.com/actix/actix-web/pull/2356


 ## 0.5.0-beta.1 - 2021-07-20
- Fix a bug in multi-patterns where static patterns are interpreted as regex. [#366]
- Introduce `ResourceDef::pattern_iter` to get an iterator over all patterns in a multi-pattern resource. [#373]
- Fix segment interpolation leaving `Path` in unintended state after matching. [#368]
- Fix `ResourceDef` `PartialEq` implementation. [#373]
- Re-work `IntoPatterns` trait, adding a `Patterns` enum. [#372]
- Implement `IntoPatterns` for `bytestring::ByteString`. [#372]
- Rename `Path::{len => segment_count}` to be more descriptive of it's purpose. [#370]
- Rename `ResourceDef::{resource_path => resource_path_from_iter}`. [#371]
- `ResourceDef::resource_path_from_iter` now takes an `IntoIterator`. [#373]
- Rename `ResourceDef::{resource_path_named => resource_path_from_map}`. [#371]
- Rename `ResourceDef::{is_prefix_match => find_match}`. [#373]
- Rename `ResourceDef::{match_path => capture_match_info}`. [#373]
- Rename `ResourceDef::{match_path_checked => capture_match_info_fn}`. [#373]
- Remove `ResourceDef::name_mut` and introduce `ResourceDef::set_name`. [#373]
- Rename `Router::{*_checked => *_fn}`. [#373]
- Return type of `ResourceDef::name` is now `Option<&str>`. [#373]
- Return type of `ResourceDef::pattern` is now `Option<&str>`. [#373]
+- Fix a bug in multi-patterns where static patterns are interpreted as regex. [#366][net#366]
+- Introduce `ResourceDef::pattern_iter` to get an iterator over all patterns in a multi-pattern resource. [#373][net#373]
+- Fix segment interpolation leaving `Path` in unintended state after matching. [#368][net#368]
+- Fix `ResourceDef` `PartialEq` implementation. [#373][net#373]
+- Re-work `IntoPatterns` trait, adding a `Patterns` enum. [#372][net#372]
+- Implement `IntoPatterns` for `bytestring::ByteString`. [#372][net#372]
+- Rename `Path::{len => segment_count}` to be more descriptive of it's purpose. [#370][net#370]
+- Rename `ResourceDef::{resource_path => resource_path_from_iter}`. [#371][net#371]
+- `ResourceDef::resource_path_from_iter` now takes an `IntoIterator`. [#373][net#373]
+- Rename `ResourceDef::{resource_path_named => resource_path_from_map}`. [#371][net#371]
+- Rename `ResourceDef::{is_prefix_match => find_match}`. [#373][net#373]
+- Rename `ResourceDef::{match_path => capture_match_info}`. [#373][net#373]
+- Rename `ResourceDef::{match_path_checked => capture_match_info_fn}`. [#373][net#373]
+- Remove `ResourceDef::name_mut` and introduce `ResourceDef::set_name`. [#373][net#373]
+- Rename `Router::{*_checked => *_fn}`. [#373][net#373]
+- Return type of `ResourceDef::name` is now `Option<&str>`. [#373][net#373]
+- Return type of `ResourceDef::pattern` is now `Option<&str>`. [#373][net#373]

-[#368]: https://github.com/actix/actix-net/pull/368
-[#366]: https://github.com/actix/actix-net/pull/366
-[#368]: https://github.com/actix/actix-net/pull/368
-[#370]: https://github.com/actix/actix-net/pull/370
-[#371]: https://github.com/actix/actix-net/pull/371
-[#372]: https://github.com/actix/actix-net/pull/372
-[#373]: https://github.com/actix/actix-net/pull/373
+[net#368]: https://github.com/actix/actix-net/pull/368
+[net#366]: https://github.com/actix/actix-net/pull/366
+[net#368]: https://github.com/actix/actix-net/pull/368
+[net#370]: https://github.com/actix/actix-net/pull/370
+[net#371]: https://github.com/actix/actix-net/pull/371
+[net#372]: https://github.com/actix/actix-net/pull/372
+[net#373]: https://github.com/actix/actix-net/pull/373
+
+</details>


 ## 0.4.0 - 2021-06-06
- When matching path parameters, `%25` is now kept in the percent-encoded form; no longer decoded to `%`. [#357]
- Path tail patterns now match new lines (`\n`) in request URL. [#360]
- Fixed a safety bug where `Path` could return a malformed string after percent decoding. [#359]
- Methods `Path::{add, add_static}` now take `impl Into<Cow<'static, str>>`. [#345]
+- When matching path parameters, `%25` is now kept in the percent-encoded form; no longer decoded to `%`. [#357][net#357]
+- Path tail patterns now match new lines (`\n`) in request URL. [#360][net#360]
+- Fixed a safety bug where `Path` could return a malformed string after percent decoding. [#359][net#359]
+- Methods `Path::{add, add_static}` now take `impl Into<Cow<'static, str>>`. [#345][net#345]

-[#345]: https://github.com/actix/actix-net/pull/345
-[#357]: https://github.com/actix/actix-net/pull/357
-[#359]: https://github.com/actix/actix-net/pull/359
-[#360]: https://github.com/actix/actix-net/pull/360
+[net#345]: https://github.com/actix/actix-net/pull/345
+[net#357]: https://github.com/actix/actix-net/pull/357
+[net#359]: https://github.com/actix/actix-net/pull/359
+[net#360]: https://github.com/actix/actix-net/pull/360


 ## 0.3.0 - 2019-12-31
@ -105,15 +178,15 @@


 ## 0.2.7 - 2021-02-06
- Add `Router::recognize_checked` [#247]
+- Add `Router::recognize_checked` [#247][net#247]

-[#247]: https://github.com/actix/actix-net/pull/247
+[net#247]: https://github.com/actix/actix-net/pull/247


 ## 0.2.6 - 2021-01-09
- Use `bytestring` version range compatible with Bytes v1.0. [#246]
+- Use `bytestring` version range compatible with Bytes v1.0. [#246][net#246]

-[#246]: https://github.com/actix/actix-net/pull/246
+[net#246]: https://github.com/actix/actix-net/pull/246


 ## 0.2.5 - 2020-09-20
--- a/actix-router/Cargo.toml
+++ b/actix-router/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-router"
-version = "0.5.0-rc.3"
+version = "0.5.0"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>",
--- a/actix-test/CHANGES.md
+++ b/actix-test/CHANGES.md
@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx


+## 0.1.0-beta.13 - 2022-02-16
+- No significant changes since `0.1.0-beta.12`.
+
+
 ## 0.1.0-beta.12 - 2022-01-31
 - Rename `TestServerConfig::{client_timeout => client_request_timeout}`. [#2611]

--- a/actix-test/Cargo.toml
+++ b/actix-test/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-test"
-version = "0.1.0-beta.12"
+version = "0.1.0-beta.13"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "Rob Ede <robjtede@icloud.com>",
@ -28,14 +28,14 @@ rustls = ["tls-rustls", "actix-http/rustls", "awc/rustls"]
 openssl = ["tls-openssl", "actix-http/openssl", "awc/openssl"]

 [dependencies]
-actix-codec = "0.4.1"
-actix-http = "3.0.0-rc.2"
-actix-http-test = "3.0.0-beta.12"
+actix-codec = "0.5"
+actix-http = "3.0.0"
+actix-http-test = "3.0.0-beta.13"
 actix-rt = "2.1"
 actix-service = "2.0.0"
 actix-utils = "3.0.0"
-actix-web = { version = "4.0.0-rc.3", default-features = false, features = ["cookies"] }
-awc = { version = "3.0.0-beta.20", default-features = false, features = ["cookies"] }
+actix-web = { version = "4.0.0", default-features = false, features = ["cookies"] }
+awc = { version = "3.0.0-beta.21", default-features = false, features = ["cookies"] }

 futures-core = { version = "0.3.7", default-features = false, features = ["std"] }
 futures-util = { version = "0.3.7", default-features = false, features = [] }
--- a/actix-test/src/lib.rs
+++ b/actix-test/src/lib.rs
@ -43,7 +43,7 @@ pub use actix_http_test::unused_addr;
 use actix_service::{map_config, IntoServiceFactory, ServiceFactory, ServiceFactoryExt as _};
 pub use actix_web::test::{
    call_and_read_body, call_and_read_body_json, call_service, init_service, ok_service,
-    read_body, read_body_json, simple_service, TestRequest,
+    read_body, read_body_json, status_service, TestRequest,
 };
 use actix_web::{
    body::MessageBody,
--- a/actix-web-actors/CHANGES.md
+++ b/actix-web-actors/CHANGES.md
@ -3,6 +3,14 @@
 ## Unreleased - 2021-xx-xx


+## 4.0.0 - 2022-02-25
+- No significant changes since `4.0.0-beta.12`.
+
+
+## 4.0.0-beta.12 - 2022-02-16
+- No significant changes since `4.0.0-beta.11`.
+
+
 ## 4.0.0-beta.11 - 2022-01-31
 - No significant changes since `4.0.0-beta.10`.

--- a/actix-web-actors/Cargo.toml
+++ b/actix-web-actors/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-web-actors"
-version = "4.0.0-beta.11"
+version = "4.0.0"
 authors = ["Nikolay Kim <fafhrd91@gmail.com>"]
 description = "Actix actors support for Actix Web"
 keywords = ["actix", "http", "web", "framework", "async"]
@ -15,9 +15,9 @@ path = "src/lib.rs"

 [dependencies]
 actix = { version = "0.12.0", default-features = false }
-actix-codec = "0.4.1"
-actix-http = "3.0.0-rc.2"
-actix-web = { version = "4.0.0-rc.3", default-features = false }
+actix-codec = "0.5"
+actix-http = "3.0.0"
+actix-web = { version = "4.0.0", default-features = false }

 bytes = "1"
 bytestring = "1"
@ -27,8 +27,8 @@ tokio = { version = "1.8.4", features = ["sync"] }

 [dev-dependencies]
 actix-rt = "2.2"
-actix-test = "0.1.0-beta.12"
-awc = { version = "3.0.0-beta.20", default-features = false }
+actix-test = "0.1.0-beta.13"
+awc = { version = "3.0.0-beta.21", default-features = false }

 env_logger = "0.9"
 futures-util = { version = "0.3.7", default-features = false }
--- a/actix-web-actors/README.md
+++ b/actix-web-actors/README.md
@ -3,11 +3,11 @@
 > Actix actors support for Actix Web.

 [![crates.io](https://img.shields.io/crates/v/actix-web-actors?label=latest)](https://crates.io/crates/actix-web-actors)
-[![Documentation](https://docs.rs/actix-web-actors/badge.svg?version=4.0.0-beta.11)](https://docs.rs/actix-web-actors/4.0.0-beta.11)
+[![Documentation](https://docs.rs/actix-web-actors/badge.svg?version=4.0.0)](https://docs.rs/actix-web-actors/4.0.0)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![License](https://img.shields.io/crates/l/actix-web-actors.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-web-actors/4.0.0-beta.11/status.svg)](https://deps.rs/crate/actix-web-actors/4.0.0-beta.11)
+[![dependency status](https://deps.rs/crate/actix-web-actors/4.0.0/status.svg)](https://deps.rs/crate/actix-web-actors/4.0.0)
 [![Download](https://img.shields.io/crates/d/actix-web-actors.svg)](https://crates.io/crates/actix-web-actors)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

--- a/actix-web-codegen/CHANGES.md
+++ b/actix-web-codegen/CHANGES.md
@ -3,6 +3,15 @@
 ## Unreleased - 2021-xx-xx


+## 4.0.0 - 2022-02-24
+- Version aligned with `actix-web` and will remain in sync going forward.
+- No significant changes since `0.5.0`.
+
+
+## 0.5.0 - 2022-02-24
+- No significant changes since `0.5.0-rc.2`.
+
+
 ## 0.5.0-rc.2 - 2022-02-01
 - No significant changes since `0.5.0-rc.1`.

--- a/actix-web-codegen/Cargo.toml
+++ b/actix-web-codegen/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-web-codegen"
-version = "0.5.0-rc.2"
+version = "4.0.0"
 description = "Routing and runtime macros for Actix Web"
 homepage = "https://actix.rs"
 repository = "https://github.com/actix/actix-web.git"
@ -15,7 +15,7 @@ edition = "2018"
 proc-macro = true

 [dependencies]
-actix-router = "0.5.0-rc.3"
+actix-router = "0.5.0"
 proc-macro2 = "1"
 quote = "1"
 syn = { version = "1", features = ["full", "parsing"] }
@ -23,9 +23,9 @@ syn = { version = "1", features = ["full", "parsing"] }
 [dev-dependencies]
 actix-macros = "0.2.3"
 actix-rt = "2.2"
-actix-test = "0.1.0-beta.12"
+actix-test = "0.1.0-beta.13"
 actix-utils = "3.0.0"
-actix-web = "4.0.0-rc.3"
+actix-web = "4.0.0"

 futures-core = { version = "0.3.7", default-features = false, features = ["alloc"] }
 trybuild = "1"
--- a/actix-web-codegen/README.md
+++ b/actix-web-codegen/README.md
@ -3,11 +3,11 @@
 > Routing and runtime macros for Actix Web.

 [![crates.io](https://img.shields.io/crates/v/actix-web-codegen?label=latest)](https://crates.io/crates/actix-web-codegen)
-[![Documentation](https://docs.rs/actix-web-codegen/badge.svg?version=0.5.0-rc.2)](https://docs.rs/actix-web-codegen/0.5.0-rc.2)
+[![Documentation](https://docs.rs/actix-web-codegen/badge.svg?version=4.0.0)](https://docs.rs/actix-web-codegen/4.0.0)
 [![Version](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.54.0.html)
 ![License](https://img.shields.io/crates/l/actix-web-codegen.svg)
 <br />
-[![dependency status](https://deps.rs/crate/actix-web-codegen/0.5.0-rc.2/status.svg)](https://deps.rs/crate/actix-web-codegen/0.5.0-rc.2)
+[![dependency status](https://deps.rs/crate/actix-web-codegen/4.0.0/status.svg)](https://deps.rs/crate/actix-web-codegen/4.0.0)
 [![Download](https://img.shields.io/crates/d/actix-web-codegen.svg)](https://crates.io/crates/actix-web-codegen)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

--- a/actix-web/CHANGES.md
+++ b/actix-web/CHANGES.md
@ -1,8 +1,284 @@
-# Changes
+# Changelog

 ## Unreleased - 2021-xx-xx


+## 4.0.1 - 2022-02-25
+- No significant changes since `4.0.0`.
+
+
+## 4.0.0 - 2022-02-25
+### Dependencies
+- Updated `actix-*` to Tokio v1-based versions. [#1813]
+- Updated `actix-web-codegen` to `4.0.0`.
+- Updated `cookie` to `0.16`. [#2555]
+- Updated `language-tags` to `0.3`.
+- Updated `rand` to `0.8`.
+- Updated `rustls` to `0.20.0`. [#2414]
+- Updated `tokio` to `1`.
+
+### Added
+- Crate Features:
+  - `cookies`; enabled by default. [#2619]
+  - `compress-brotli`; enabled by default. [#2618]
+  - `compress-gzip`; enabled by default. [#2618]
+  - `compress-zstd`; enabled by default. [#2618]
+  - `macros`; enables routing and runtime macros, enabled by default. [#2619]
+- Types:
+  - `CustomizeResponder` for customizing response. [#2510]
+  - `dev::ServerHandle` re-export from `actix-server`. [#2442]
+  - `dev::ServiceFactory` re-export from `actix-service`. [#2325]
+  - `guard::GuardContext` for use with the `Guard` trait. [#2552]
+  - `http::header::AcceptEncoding` typed header. [#2482]
+  - `http::header::Range` typed header. [#2485]
+  - `http::KeepAlive` re-export from `actix-http`. [#2625]
+  - `middleware::Compat` that boxes middleware types like `Logger` and `Compress` to be used with constrained type bounds. [#1865]
+  - `web::Header` extractor for extracting typed HTTP headers in handlers. [#2094]
+- Methods:
+  - `dev::ServiceRequest::guard_ctx()` for obtaining a guard context. [#2552]
+  - `dev::ServiceRequest::parts_mut()`. [#2177]
+  - `dev::ServiceResponse::map_into_{left,right}_body()` and `HttpResponse::map_into_boxed_body()`. [#2468]
+  - `Either<web::Json<T>, web::Form<T>>::into_inner()` which returns the inner type for whichever variant was created. Also works for `Either<web::Form<T>, web::Json<T>>`. [#1894]
+  - `http::header::AcceptLanguage::{ranked, preference}()`. [#2480]
+  - `HttpResponse::add_removal_cookie()`. [#2586]
+  - `HttpResponse::map_into_{left,right}_body()` and `HttpResponse::map_into_boxed_body()`. [#2468]
+  - `HttpServer::worker_max_blocking_threads` for setting block thread pool. [#2200]
+  - `middleware::Logger::log_target()` to allow customize. [#2594]
+  - `Responder::customize()` trait method that wraps responder in `CustomizeResponder`. [#2510]
+  - `Route::service()` for using hand-written services as handlers. [#2262]
+  - `ServiceResponse::into_parts()`. [#2499]
+  - `TestServer::client_headers()` method. [#2097]
+  - `web::ServiceConfig::configure()` to allow easy nesting of configuration functions. [#1988]
+- Trait Implementations:
+  - Implement `Debug` for `DefaultHeaders`. [#2510]
+  - Implement `FromRequest` for `ConnectionInfo` and `PeerAddr`. [#2263]
+  - Implement `FromRequest` for `Method`. [#2263]
+  - Implement `FromRequest` for `Uri`. [#2263]
+  - Implement `Hash` for `http::header::Encoding`. [#2501]
+  - Implement `Responder` for `Vec<u8>`. [#2625]
+- Misc:
+  - `#[actix_web::test]` macro for setting up tests with a runtime. [#2409]
+  - Enable registering a vec of services of the same type to `App` [#1933]
+  - Add `services!` macro for helping register multiple services to `App`. [#1933]
+  - Option to allow `Json` extractor to work without a `Content-Type` header present. [#2362]
+  - Connection data set through the `HttpServer::on_connect` callback is now accessible only from the new `HttpRequest::conn_data()` and `ServiceRequest::conn_data()` methods. [#2491]
+
+### Changed
+- Functions:
+  - `guard::fn_guard` functions now receives a `&GuardContext`. [#2552]
+  - `guard::Not` is now generic over the type of guard it wraps. [#2552]
+  - `test::{call_service, read_response, read_response_json, send_request}()` now receive a `&Service`. [#1905]
+  - Some guard functions now return `impl Guard` and their concrete types are made private: `guard::Header` and all the method guards. [#2552]
+  - Rename `test::{default_service => status_service}()`. Old name is deprecated. [#2518]
+  - Rename `test::{read_response_json => call_and_read_body_json}()`. Old name is deprecated. [#2518]
+  - Rename `test::{read_response => call_and_read_body}()`. Old name is deprecated. [#2518]
+- Traits:
+  - `guard::Guard::check` now receives a `&GuardContext`. [#2552]
+  - `FromRequest::Config` associated type was removed. [#2233]
+  - `Responder` trait has been reworked and now `Response`/`HttpResponse` synchronously, making it simpler and more performant. [#1891]
+  - Rename `Factory` trait to `Handler`. [#1852]
+- Types:
+  - `App`'s `B` (body) type parameter been removed. As a result, `App`s can be returned from functions now. [#2493]
+  - `Compress` middleware's response type is now `EitherBody<Encoder<B>>`. [#2448]
+  - `error::BlockingError` is now a unit struct. It's now only triggered when blocking thread pool has shutdown. [#1957]
+  - `ErrorHandlerResponse`'s response variants now use `ServiceResponse<EitherBody<B>>`. [#2515]
+  - `ErrorHandlers` middleware's response types now use `ServiceResponse<EitherBody<B>>`. [#2515]
+  - `http::header::Encoding` now only represents `Content-Encoding` types. [#2501]
+  - `middleware::Condition` gained a broader middleware compatibility. [#2635]
+  - `Resource` no longer require service body type to be boxed. [#2526]
+  - `Scope` no longer require service body type to be boxed. [#2523]
+  - `web::Path`s inner field is now private. [#1894]
+  - `web::Payload`'s inner field is now private. [#2384]
+  - Error enums are now marked `#[non_exhaustive]`. [#2148]
+- Enum Variants:
+  - `Either` now uses `Left`/`Right` variants (instead of `A`/`B`) [#1894]
+  - Include size and limits in `JsonPayloadError::Overflow`. [#2162]
+- Methods:
+  - `App::data()` is deprecated; `App::app_data()` should be preferred. [#2271]
+  - `dev::JsonBody::new()` returns a default limit of 32kB to be consistent with `JsonConfig` and the default behaviour of the `web::Json<T>` extractor. [#2010]
+  - `dev::ServiceRequest::{into_parts, from_parts}()` can no longer fail. [#1893]
+  - `dev::ServiceRequest::from_request` can no longer fail. [#1893]
+  - `dev::ServiceResponse::error_response()` now uses body type of `BoxBody`. [#2201]
+  - `dev::ServiceResponse::map_body()` closure receives and returns `B` instead of `ResponseBody<B>`. [#2201]
+  - `http::header::ContentType::html()` now produces `text/html; charset=utf-8` instead of `text/html`. [#2423]
+  - `HttpRequest::url_for`'s constructed URLs no longer contain query or fragment. [#2430]
+  - `HttpResponseBuilder::json()` can now receive data by value and reference. [#1903]
+  - `HttpServer::{listen_rustls, bind_rustls}()` now honor the ALPN protocols in the configuration parameter. [#2226]
+  - `middleware::NormalizePath()` now will not try to normalize URIs with no valid path [#2246]
+  - `test::TestRequest::param()` now accepts more than just static strings. [#2172]
+  - `web::Data::into_inner()` and `Data::get_ref()` no longer require `T: Sized`. [#2403]
+  - Rename `HttpServer::{client_timeout => client_request_timeout}()`. [#2611]
+  - Rename `HttpServer::{client_shutdown => client_disconnect_timeout}()`. [#2611]
+  - Rename `http::header::Accept::{mime_precedence => ranked}()`. [#2480]
+  - Rename `http::header::Accept::{mime_preference => preference}()`. [#2480]
+  - Rename `middleware::DefaultHeaders::{content_type => add_content_type}()`. [#1875]
+  - Rename `dev::ConnectionInfo::{remote_addr => peer_addr}`, deprecating the old name. [#2554]
+- Trait Implementations:
+  - `HttpResponse` can now be used as a `Responder` with any body type. [#2567]
+- Misc:
+  - Maximum number of handler extractors has increased to 12. [#2582]
+  - The default `TrailingSlash` behavior is now `Trim`, in line with existing documentation. See migration guide for implications. [#1875]
+  - `Result` extractor wrapper can now convert error types. [#2581]
+  - Compress middleware will return `406 Not Acceptable` when no content encoding is acceptable to the client. [#2344]
+  - Adjusted default JSON payload limit to 2MB (from 32kb). [#2162]
+  - All error trait bounds in server service builders have changed from `Into<Error>` to `Into<Response<BoxBody>>`. [#2253]
+  - All error trait bounds in message body and stream impls changed from `Into<Error>` to `Into<Box<dyn std::error::Error>>`. [#2253]
+  - Improve spec compliance of `dev::ConnectionInfo` extractor. [#2282]
+  - Associated types in `FromRequest` implementation for `Option` and `Result` have changed. [#2581]
+  - Reduce the level from `error` to `debug` for the log line that is emitted when a `500 Internal Server Error` is built using `HttpResponse::from_error`. [#2201]
+  - Minimum supported Rust version (MSRV) is now 1.54.
+
+### Fixed
+- Auto-negotiation of content encoding is more fault-tolerant when using the `Compress` middleware. [#2501]
+- Scope and Resource middleware can access data items set on their own layer. [#2288]
+- Multiple calls to `App::data()` with the same type now keeps the latest call's data. [#1906]
+- Typed headers containing lists that require one or more items now enforce this minimum. [#2482]
+- `dev::ConnectionInfo::peer_addr` will no longer return the port number. [#2554]
+- `dev::ConnectionInfo::realip_remote_addr` will no longer return the port number if sourcing the IP from the peer's socket address. [#2554]
+- Accept wildcard `*` items in `AcceptLanguage`. [#2480]
+- Relax `Unpin` bound on `S` (stream) parameter of `HttpResponseBuilder::streaming`. [#2448]
+- Fix quality parse error in `http::header::AcceptEncoding` typed header. [#2344]
+- Double ampersand in `middleware::Logger` format is escaped correctly. [#2067]
+- Added the underlying parse error to `test::read_body_json`'s panic message. [#1812]
+
+### Security
+- `cookie` upgrade addresses [`RUSTSEC-2020-0071`].
+
+[`rustsec-2020-0071`]: https://rustsec.org/advisories/RUSTSEC-2020-0071.html
+
+### Removed
+- Crate Features:
+  - `compress` feature. [#2065]
+- Functions:
+  - `test::load_stream` and `test::load_body`; replace usage with `body::to_bytes`. [#2518]
+  - `test::start_with`; moved to new `actix-test` crate. [#2112]
+  - `test::start`; moved to new `actix-test` crate. [#2112]
+  - `test::unused_addr`; moved to new `actix-test` crate. [#2112]
+- Traits:
+  - `BodyEncoding`; signalling content encoding is now only done via the `Content-Encoding` header. [#2565]
+- Types:
+  - `dev::{BodySize, MessageBody, SizedStream}` re-exports; they are exposed through the `body` module. [#2468]
+  - `EitherExtractError` direct export. [#2510]
+  - `rt::{Arbiter, ArbiterHandle}` re-exports. [#2619]
+  - `test::TestServer`; moved to new `actix-test` crate. [#2112]
+  - `test::TestServerConfig`; moved to new `actix-test` crate. [#2112]
+  - `web::HttpRequest` re-export. [#2663]
+  - `web::HttpResponse` re-export. [#2663]
+- Methods:
+  - `AppService::set_service_data`; for custom HTTP service factories adding application data, use the layered data model by calling `ServiceRequest::add_data_container` when handling requests instead. [#1906]
+  - `dev::ConnectionInfo::get`. [#2487]
+  - `dev::ServiceResponse::checked_expr`. [#2401]
+  - `HttpRequestBuilder::del_cookie`. [#2591]
+  - `HttpResponse::take_body` and old `HttpResponse::into_body` method that casted body type. [#2201]
+  - `HttpResponseBuilder::json2()`. [#1903]
+  - `middleware::Compress::new`; restricting compression algorithm is done through feature flags. [#2501]
+  - `test::TestRequest::with_header()`; use `test::TestRequest::default().insert_header()`. [#1869]
+- Trait Implementations:
+  - Implementation of `From<either::Either>` for `Either` crate. [#2516]
+  - Implementation of `Future` for `HttpResponse`. [#2601]
+- Misc:
+  - The `client` module was removed; use the `awc` crate directly. [871ca5e4]
+  - `middleware::{normalize, err_handlers}` modules; all necessary middleware types are now exposed in the `middleware` module.
+
+[#1812]: https://github.com/actix/actix-web/pull/1812
+[#1813]: https://github.com/actix/actix-web/pull/1813
+[#1852]: https://github.com/actix/actix-web/pull/1852
+[#1865]: https://github.com/actix/actix-web/pull/1865
+[#1869]: https://github.com/actix/actix-web/pull/1869
+[#1875]: https://github.com/actix/actix-web/pull/1875
+[#1878]: https://github.com/actix/actix-web/pull/1878
+[#1891]: https://github.com/actix/actix-web/pull/1891
+[#1893]: https://github.com/actix/actix-web/pull/1893
+[#1894]: https://github.com/actix/actix-web/pull/1894
+[#1903]: https://github.com/actix/actix-web/pull/1903
+[#1905]: https://github.com/actix/actix-web/pull/1905
+[#1906]: https://github.com/actix/actix-web/pull/1906
+[#1933]: https://github.com/actix/actix-web/pull/1933
+[#1957]: https://github.com/actix/actix-web/pull/1957
+[#1957]: https://github.com/actix/actix-web/pull/1957
+[#1981]: https://github.com/actix/actix-web/pull/1981
+[#1988]: https://github.com/actix/actix-web/pull/1988
+[#2010]: https://github.com/actix/actix-web/pull/2010
+[#2065]: https://github.com/actix/actix-web/pull/2065
+[#2067]: https://github.com/actix/actix-web/pull/2067
+[#2093]: https://github.com/actix/actix-web/pull/2093
+[#2094]: https://github.com/actix/actix-web/pull/2094
+[#2097]: https://github.com/actix/actix-web/pull/2097
+[#2112]: https://github.com/actix/actix-web/pull/2112
+[#2148]: https://github.com/actix/actix-web/pull/2148
+[#2162]: https://github.com/actix/actix-web/pull/2162
+[#2172]: https://github.com/actix/actix-web/pull/2172
+[#2177]: https://github.com/actix/actix-web/pull/2177
+[#2200]: https://github.com/actix/actix-web/pull/2200
+[#2201]: https://github.com/actix/actix-web/pull/2201
+[#2201]: https://github.com/actix/actix-web/pull/2201
+[#2233]: https://github.com/actix/actix-web/pull/2233
+[#2246]: https://github.com/actix/actix-web/pull/2246
+[#2250]: https://github.com/actix/actix-web/pull/2250
+[#2253]: https://github.com/actix/actix-web/pull/2253
+[#2262]: https://github.com/actix/actix-web/pull/2262
+[#2263]: https://github.com/actix/actix-web/pull/2263
+[#2271]: https://github.com/actix/actix-web/pull/2271
+[#2282]: https://github.com/actix/actix-web/pull/2282
+[#2288]: https://github.com/actix/actix-web/pull/2288
+[#2325]: https://github.com/actix/actix-web/pull/2325
+[#2344]: https://github.com/actix/actix-web/pull/2344
+[#2362]: https://github.com/actix/actix-web/pull/2362
+[#2379]: https://github.com/actix/actix-web/pull/2379
+[#2384]: https://github.com/actix/actix-web/pull/2384
+[#2401]: https://github.com/actix/actix-web/pull/2401
+[#2403]: https://github.com/actix/actix-web/pull/2403
+[#2409]: https://github.com/actix/actix-web/pull/2409
+[#2414]: https://github.com/actix/actix-web/pull/2414
+[#2423]: https://github.com/actix/actix-web/pull/2423
+[#2430]: https://github.com/actix/actix-web/pull/2430
+[#2442]: https://github.com/actix/actix-web/pull/2442
+[#2446]: https://github.com/actix/actix-web/pull/2446
+[#2448]: https://github.com/actix/actix-web/pull/2448
+[#2468]: https://github.com/actix/actix-web/pull/2468
+[#2474]: https://github.com/actix/actix-web/pull/2474
+[#2480]: https://github.com/actix/actix-web/pull/2480
+[#2482]: https://github.com/actix/actix-web/pull/2482
+[#2484]: https://github.com/actix/actix-web/pull/2484
+[#2485]: https://github.com/actix/actix-web/pull/2485
+[#2487]: https://github.com/actix/actix-web/pull/2487
+[#2491]: https://github.com/actix/actix-web/pull/2491
+[#2492]: https://github.com/actix/actix-web/pull/2492
+[#2493]: https://github.com/actix/actix-web/pull/2493
+[#2499]: https://github.com/actix/actix-web/pull/2499
+[#2501]: https://github.com/actix/actix-web/pull/2501
+[#2510]: https://github.com/actix/actix-web/pull/2510
+[#2515]: https://github.com/actix/actix-web/pull/2515
+[#2516]: https://github.com/actix/actix-web/pull/2516
+[#2518]: https://github.com/actix/actix-web/pull/2518
+[#2523]: https://github.com/actix/actix-web/pull/2523
+[#2526]: https://github.com/actix/actix-web/pull/2526
+[#2552]: https://github.com/actix/actix-web/pull/2552
+[#2554]: https://github.com/actix/actix-web/pull/2554
+[#2555]: https://github.com/actix/actix-web/pull/2555
+[#2565]: https://github.com/actix/actix-web/pull/2565
+[#2567]: https://github.com/actix/actix-web/pull/2567
+[#2569]: https://github.com/actix/actix-web/pull/2569
+[#2581]: https://github.com/actix/actix-web/pull/2581
+[#2582]: https://github.com/actix/actix-web/pull/2582
+[#2584]: https://github.com/actix/actix-web/pull/2584
+[#2585]: https://github.com/actix/actix-web/pull/2585
+[#2586]: https://github.com/actix/actix-web/pull/2586
+[#2591]: https://github.com/actix/actix-web/pull/2591
+[#2594]: https://github.com/actix/actix-web/pull/2594
+[#2601]: https://github.com/actix/actix-web/pull/2601
+[#2611]: https://github.com/actix/actix-web/pull/2611
+[#2619]: https://github.com/actix/actix-web/pull/2619
+[#2625]: https://github.com/actix/actix-web/pull/2625
+[#2635]: https://github.com/actix/actix-web/pull/2635
+[#2659]: https://github.com/actix/actix-web/pull/2659
+[#2663]: https://github.com/actix/actix-web/pull/2663
+[871ca5e4]: https://github.com/actix/actix-web/commit/871ca5e4ae2bdc22d1ea02701c2992fa8d04aed7
+
+
+<details>
+<summary>4.0.0 Pre-Releases</summary>
+
 ## 4.0.0-rc.3 - 2022-02-08
 ### Changed
 - `middleware::Condition` gained a broader compatibility; `Compat` is needed in fewer cases. [#2635]
@ -449,6 +725,7 @@
 [#1875]: https://github.com/actix/actix-web/pull/1875
 [#1878]: https://github.com/actix/actix-web/pull/1878

+</details>

 ## 3.3.3 - 2021-12-18
 ### Changed
--- a/actix-web/Cargo.toml
+++ b/actix-web/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "actix-web"
-version = "4.0.0-rc.3"
+version = "4.0.1"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "Rob Ede <robjtede@icloud.com>",
@ -63,7 +63,7 @@ __compress = []
 experimental-io-uring = ["actix-server/io-uring"]

 [dependencies]
-actix-codec = "0.4.1"
+actix-codec = "0.5"
 actix-macros = { version = "0.2.3", optional = true }
 actix-rt = { version = "2.6", default-features = false }
 actix-server = "2"
@ -71,12 +71,13 @@ actix-service = "2"
 actix-utils = "3"
 actix-tls = { version = "3", default-features = false, optional = true }

-actix-http = { version = "3.0.0-rc.2", features = ["http2", "ws"] }
-actix-router = "0.5.0-rc.3"
-actix-web-codegen = { version = "0.5.0-rc.2", optional = true }
+actix-http = { version = "3.0.0", features = ["http2", "ws"] }
+actix-router = "0.5.0"
+actix-web-codegen = { version = "4.0.0", optional = true }

 ahash = "0.7"
 bytes = "1"
+bytestring = "1"
 cfg-if = "1"
 cookie = { version = "0.16", features = ["percent-encode"], optional = true }
 derive_more = "0.99.5"
@ -99,9 +100,9 @@ time = { version = "0.3", default-features = false, features = ["formatting"] }
 url = "2.1"

 [dev-dependencies]
-actix-files = "0.6.0-beta.16"
-actix-test = { version = "0.1.0-beta.12", features = ["openssl", "rustls"] }
-awc = { version = "3.0.0-beta.20", features = ["openssl"] }
+actix-files = "0.6.0"
+actix-test = { version = "0.1.0-beta.13", features = ["openssl", "rustls"] }
+awc = { version = "3.0.0-beta.21", features = ["openssl"] }

 brotli = "3.3.3"
 const-str = "0.3"
--- a/actix-web/MIGRATION-4.0.md
+++ b/actix-web/MIGRATION-4.0.md
@ -1,38 +1,67 @@
 # Migrating to 4.0.0

-It is assumed that migration is happening _from_ v3.x. If migration from older version of Actix Web, see the other historical migration notes in this folder.
+This guide walks you through the process of migrating from v3.x.y to v4.x.y.  
+If you are migrating to v4.x.y from an older version of Actix Web (v2.x.y or earlier), check out the other historical migration notes in this folder.

-This is not an exhaustive list of changes. Smaller or less impactful code changes are outlined, with links to the PRs that introduced them, are shown in [CHANGES.md](./CHANGES.md). If you think any of the changes not mentioned here deserve to be, submit an issue or PR.
+This document is not designed to be exhaustive—it focuses on the most significant changes coming in v4. You can find an exhaustive changelog in the changelogs for [`actix-web`](./CHANGES.md#400---2022-02-25) and [`actix-http`](../actix-http/CHANGES.md#300---2022-02-25), complete of PR links. If you think that some of the changes that we omitted deserve to be called out in this document, please open an issue or submit a PR.

-Headings marked with :warning: are **breaking behavioral changes** and will probably not surface as compile-time errors. Automated tests _might_ detect their effects on your app.
+Headings marked with :warning: are **breaking behavioral changes**. They will probably not surface as compile-time errors though automated tests _might_ detect their effects on your app.

 ## Table of Contents:

 - [MSRV](#msrv)
- [Server Settings](#server-settings)
+- [Tokio v1 Ecosystem](#tokio-v1-ecosystem)
 - [Module Structure](#module-structure)
 - [`NormalizePath` Middleware :warning:](#normalizepath-middleware-warning)
+- [Server Settings :warning:](#server-settings-warning)
 - [`FromRequest` Trait](#fromrequest-trait)
 - [Compression Feature Flags](#compression-feature-flags)
 - [`web::Path`](#webpath)
- [Rustls](#rustls-crate-upgrade)
+- [Rustls Crate Upgrade](#rustls-crate-upgrade)
+- [Removed `awc` Client Re-export](#removed-awc-client-re-export)
+- [Integration Testing Utils Moved To `actix-test`](#integration-testing-utils-moved-to-actix-test)
+- [Header APIs](#header-apis)
+- [Response Body Types](#response-body-types)
+- [Middleware Trait APIs](#middleware-trait-apis)
+- [`Responder` Trait](#responder-trait)
+- [`App::data` Deprecation :warning:](#appdata-deprecation-warning)
+- [Direct Dependency On `actix-rt` And `actix-service`](#direct-dependency-on-actix-rt-and-actix-service)
+- [Server Must Be Polled :warning:](#server-must-be-polled-warning)
+- [Guards API](#guards-api)
+- [Returning `HttpResponse` synchronously](#returning-httpresponse-synchronously)
+- [`#[actix_web::main]` and `#[tokio::main]`](#actixwebmain-and-tokiomain)
+- [`web::block`](#webblock)

 ## MSRV

 The MSRV of Actix Web has been raised from 1.42 to 1.54.

-## Server Settings
+## Tokio v1 Ecosystem

-Until actix-web v4, actix-server used the total number of available logical cores as the default number of worker threads.  The new default number of worker threads for actix-server is the number of [physical CPU cores available](https://github.com/actix/actix-net/commit/3a3d654cea5e55b169f6fd05693b765799733b1b#diff-96893e8cb2125e6eefc96105a8462c4fd834943ef5129ffbead1a114133ebb78).  For more information about this change, refer to [this analysis](https://github.com/actix/actix-web/issues/957).
+Actix Web v4 is now underpinned by `tokio`'s v1 ecosystem.

+`cargo` supports having multiple versions of the same crate within the same dependency tree, but `tokio` v1 does not interoperate transparently with its previous versions (v0.2, v0.1). Some of your dependencies might rely on `tokio`, either directly or indirectly—if they are using an older version of `tokio`, check if an update is available.  
+The following command can help you to identify these dependencies:
+
+```sh
+# Find all crates in your dependency tree that depend on `tokio`
+# It also reports the different versions of `tokio` in your dependency tree.
+cargo tree -i tokio
+
+# if you depend on multiple versions of tokio, use this command to
+# list the dependencies relying on a specific version of tokio:
+cargo tree -i tokio:0.2.25
+```

 ## Module Structure

-Lots of modules has been organized in this release. If a compile error refers to "item XYZ not found in module..." or "module XYZ not found", refer to the [documentation on docs.rs](https://docs.rs/actix-web) to to search for items' new locations.
+Lots of modules have been re-organized in this release. If a compile error refers to "item XYZ not found in module..." or "module XYZ not found", check the [documentation on docs.rs](https://docs.rs/actix-web) to search for items' new locations.

 ## `NormalizePath` Middleware :warning:

-The default `NormalizePath` behavior now strips trailing slashes by default. This was previously documented to be the case in v3 but the behavior now matches. The effect is that routes defined with trailing slashes will become inaccessible when using `NormalizePath::default()`. As such, calling `NormalizePath::default()` will log a warning. It is advised that the `new` or `trim` methods be used instead.
+The default `NormalizePath` behavior now strips trailing slashes by default. This was the _documented_ behaviour in Actix Web v3, but the _actual_ behaviour differed. The discrepancy has now been resolved.
+
+As a consequence of this change, routes defined with trailing slashes will become inaccessible when using `NormalizePath::default()`. Calling `NormalizePath::default()` will log a warning. We suggest to use `new` or `trim`.

 ```diff
 - #[get("/test/")]
@ -46,6 +75,12 @@ The default `NormalizePath` behavior now strips trailing slashes by default. Thi

 Alternatively, explicitly require trailing slashes: `NormalizePath::new(TrailingSlash::Always)`.

+## Server Settings :warning:
+
+Until Actix Web v4, the underlying `actix-server` crate used the number of available **logical** cores as the default number of worker threads. The new default is the number of [physical CPU cores available](https://github.com/actix/actix-net/commit/3a3d654c). For more information about this change, refer to [this analysis](https://github.com/actix/actix-web/issues/957).
+
+If you notice performance regressions, please open a new issue detailing your observations.
+
 ## `FromRequest` Trait

 The associated type `Config` of `FromRequest` was removed. If you have custom extractors, you can just remove this implementation and refer to config types directly, if required.
@ -60,17 +95,15 @@ Consequently, the `FromRequest::configure` method was also removed. Config for e

 ## Compression Feature Flags

-Feature flag `compress` has been split into its supported algorithm (brotli, gzip, zstd). By default, all compression algorithms are enabled. The new flags are:
+The `compress` feature flag has been split into more granular feature flags, one for each supported algorithm (brotli, gzip, zstd). By default, all compression algorithms are enabled. If you want to select specific compression codecs, the new flags are:

 - `compress-brotli`
 - `compress-gzip`
 - `compress-zstd`

-If you have set in your `Cargo.toml` dedicated `actix-web` features and you still want to have compression enabled.
-
 ## `web::Path`

-The inner field for `web::Path` was made private because It was causing too many issues when used with inner tuple types due to its `Deref` impl.
+The inner field for `web::Path` is now private. It was causing ambiguity when trying to use tuple indexing due to its `Deref` implementation.

 ```diff
 - async fn handler(web::Path((foo, bar)): web::Path<(String, String)>) {
@ -80,66 +113,371 @@ The inner field for `web::Path` was made private because It was causing too many

 ## Rustls Crate Upgrade

-Required version of `rustls` dependency was bumped to the latest version 0.20. As a result, the new server config builder has changed. [See the updated example project &rarr;.](https://github.com/actix/examples/tree/HEAD/security/rustls/)
+Actix Web now depends on version 0.20 of `rustls`. As a result, the server config builder has changed. [See the updated example project.](https://github.com/actix/examples/tree/master/https-tls/rustls/)

 ## Removed `awc` Client Re-export

-Actix Web's sister crate `awc` is no longer re-exported through the `client` module. This allows `awc` its own release cadence and prevents its own breaking changes from being blocked due to a re-export.
+Actix Web's sister crate `awc` is no longer re-exported through the `client` module. This allows `awc` to have its own release cadence—its breaking changes are no longer blocked by Actix Web's (more conservative) release schedule.

 ```diff
 - use actix_web::client::Client;
 + use awc::Client;
 ```

-## Integration Testing Utils Moved to `actix-test`
+## Integration Testing Utils Moved To `actix-test`

-Actix Web's `test` module used to contain `TestServer`. Since this required the `awc` client and it was removed as a re-export (see above), it was moved to its own crate [`actix-test`](https://docs.rs/actix-test).
+`TestServer` has been moved to its own crate, [`actix-test`](https://docs.rs/actix-test).

 ```diff
 - use use actix_web::test::start;
 + use use actix_test::start;
 ```

+`TestServer` previously lived in `actix_web::test`, but it depends on `awc` which is no longer part of Actix Web's public API (see above).
+
 ## Header APIs

-TODO
+Header related APIs have been standardized across all `actix-*` crates. The terminology now better matches the underlying `HeaderMap` naming conventions.

-## Body Types / Removal of Body+ResponseBody types / Addition of EitherBody
+In short, "insert" always indicates that any existing headers with the same name are overridden, while "append" is used for adding with no removal (e.g. multi-valued headers).

-TODO
+For request and response builder APIs, the new methods provide a unified interface for adding key-value pairs _and_ typed headers, which can often be more expressive.

-In particular, folks seem to be struggling with the `ErrorHandlers` middleware because of this change and the obscured nature of `EitherBody` within its types.
+```diff
+- .set_header("Api-Key", "1234")
+ .insert_header(("Api-Key", "1234"))
+
+- .header("Api-Key", "1234")
+ .append_header(("Api-Key", "1234"))
+
+- .set(ContentType::json())
+ .insert_header(ContentType::json())
+```
+
+We chose to deprecate most of the old methods instead of removing them immediately—the warning notes will guide you on how to update.
+
+## Response Body Types
+
+There have been a lot of changes to response body types. They are now more expressive and their purpose should be more intuitive.
+
+We have boosted the quality and completeness of the documentation for all items in the [`body` module](https://docs.rs/actix-web/4/actix_web/body).
+
+### `ResponseBody`
+
+`ResponseBody` is gone. Its purpose was confusing and has been replaced by better components.
+
+### `Body`
+
+`Body` is also gone. In combination with `ResponseBody`, the API it provided was sub-optimal and did not encourage expressive types. Here are the equivalents in the new system (check docs):
+
+- `Body::None` => `body::None::new()`
+- `Body::Empty` => `()` / `web::Bytes::new()`
+- `Body::Bytes` => `web::Bytes::from(...)`
+- `Body::Message` => `.boxed()` / `BoxBody`
+
+### `BoxBody`
+
+`BoxBody` is a new type-erased body type.
+
+It can be useful when writing handlers, responders, and middleware when you want to trade a (very) small amount of performance for a simpler type.
+
+Creating a boxed body is done most efficiently by calling [`.boxed()`](https://docs.rs/actix-web/4/actix_web/body/trait.MessageBody.html#method.boxed) on a `MessageBody` type.
+
+### `EitherBody`
+
+`EitherBody` is a new "either" type that implements `MessageBody`
+
+It is particularly useful in middleware that can bail early, returning their own response plus body type. By default the "right" variant is `BoxBody` (i.e., `EitherBody<B>` === `EitherBody<B, BoxBody>`) but it can be anything that implements `MessageBody`.
+
+For example, it will be common among middleware which value performance of the hot path to use:
+
+```rust
+type Response = Result<ServiceResponse<EitherBody<B>>, Error>
+```
+
+This can be read (ignoring the `Result`) as "resolves with a `ServiceResponse` that is either the inner service's `B` body type or a boxed body type from elsewhere, likely constructed within the middleware itself". Of course, if your middleware contains only simple string other/error responses, it's possible to use them without boxes at the cost of a less simple implementation:
+
+```rust
+type Response = Result<ServiceResponse<EitherBody<B, String>>, Error>
+```
+
+### Error Handlers
+
+`ErrorHandlers` is a commonly used middleware that has changed in design slightly due to the other body type changes.
+
+In particular, an implicit `EitherBody` is used in the `ErrorHandlerResponse<B>` type. An `ErrorHandlerResponse<B>` now expects a `ServiceResponse<EitherBody<B>>` to be returned within response variants. The following is a migration for an error handler that **only modifies** the response argument (left body).
+
+```diff
+  fn add_error_header<B>(mut res: ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>, Error> {
+      res.response_mut().headers_mut().insert(
+          header::CONTENT_TYPE,
+          header::HeaderValue::from_static("Error"),
+      );
+-     Ok(ErrorHandlerResponse::Response(res))
+     Ok(ErrorHandlerResponse::Response(res.map_into_left_body()))
+  }
+```
+
+The following is a migration for an error handler that creates a new response instead (right body).
+
+```diff
+  fn error_handler<B>(res: ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>, Error> {
+-     let req = res.request().clone();
+     let (req, _res) = res.into_parts();
+
+      let res = actix_files::NamedFile::open("./templates/404.html")?
+          .set_status_code(StatusCode::NOT_FOUND)
+-         .into_response(&req)?
+-         .into_body();
+         .into_response(&req);
+
+-     let res = ServiceResponse::new(req, res);
+     let res = ServiceResponse::new(req, res).map_into_right_body();
+      Ok(ErrorHandlerResponse::Response(res))
+  }
+```

 ## Middleware Trait APIs

-TODO
+The underlying traits that are used for creating middleware, `Service`, `ServiceFactory`, and `Transform`, have changed in design.

-TODO: Also write the Middleware author's guide.
+- The associated `Request` type has moved to the type parameter position in order to allow multiple request implementations in other areas of the service stack.
+- The `self` arguments in `Service` have changed from exclusive (mutable) borrows to shared (immutable) borrows. Since most service layers, such as middleware, do not host mutable state, it reduces the runtime overhead in places where a `RefCell` used to be required for wrapping an inner service.
+- We've also introduced some macros that reduce boilerplate when implementing `poll_ready`.
+- Further to the guidance on [response body types](#response-body-types), any use of the old methods on `ServiceResponse` designed to match up body types (e.g., the old `into_body` method), should be replaced with an explicit response body type utilizing `EitherBody<B>`.
+
+A typical migration would look like this:
+
+```diff
+  use std::{
+-     cell::RefCell,
+      future::Future,
+      pin::Pin,
+      rc::Rc,
+-     task::{Context, Poll},
+  };
+
+  use actix_web::{
+      dev::{Service, ServiceRequest, ServiceResponse, Transform},
+      Error,
+  };
+  use futures_util::future::{ok, LocalBoxFuture, Ready};
+
+  pub struct SayHi;
+
+- impl<S, B> Transform<S> for SayHi
+ impl<S, B> Transform<S, ServiceRequest> for SayHi
+  where
+-     S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+     S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+      S::Future: 'static,
+      B: 'static,
+  {
+-     type Request = ServiceRequest;
+      type Response = ServiceResponse<B>;
+      type Error = Error;
+      type InitError = ();
+      type Transform = SayHiMiddleware<S>;
+      type Future = Ready<Result<Self::Transform, Self::InitError>>;
+
+      fn new_transform(&self, service: S) -> Self::Future {
+          ok(SayHiMiddleware {
+-             service: Rc::new(RefCell::new(service)),
+             service: Rc::new(service),
+          })
+      }
+  }
+
+  pub struct SayHiMiddleware<S> {
+-     service: Rc<RefCell<S>>,
+     service: Rc<S>,
+  }
+
+- impl<S, B> Service for SayHiMiddleware<S>
+ impl<S, B> Service<ServiceRequest> for SayHiMiddleware<S>
+  where
+-     S: Service<Request = ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+     S: Service<ServiceRequest, Response = ServiceResponse<B>, Error = Error>,
+      S::Future: 'static,
+      B: 'static,
+  {
+-     type Request = ServiceRequest;
+      type Response = ServiceResponse<B>;
+      type Error = Error;
+      type Future = LocalBoxFuture<'static, Result<Self::Response, Self::Error>>;
+
+-     fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
+-         self.service.poll_ready(cx)
+-     }
+     actix_web::dev::forward_ready!(service);
+
+-     fn call(&mut self, req: ServiceRequest) -> Self::Future {
+     fn call(&self, req: ServiceRequest) -> Self::Future {
+          println!("Hi from start. You requested: {}", req.path());
+
+          let fut = self.service.call(req);
+
+          Box::pin(async move {
+              let res = fut.await?;
+
+              println!("Hi from response");
+              Ok(res)
+          })
+      }
+  }
+```
+
+This new design is forward-looking and should ease transition to traits that support the upcoming Generic Associated Type (GAT) feature in Rust while also trimming down the boilerplate required to implement middleware.
+
+We understand that creating middleware is still a pain point for Actix Web and we hope to provide [an even more ergonomic solution](https://docs.rs/actix-web-lab/0.11.0/actix_web_lab/middleware/fn.from_fn.html) in a v4.x release.

 ## `Responder` Trait

-TODO
+The `Responder` trait's interface has changed. Errors should be handled and converted to responses within the `respond_to` method. It's also no longer async so the associated `type Future` has been removed; there was no compelling use case found for it. These changes simplify the interface and implementation a lot.

-## `App::data` deprecation
+Now that more emphasis is placed on expressive body types, as explained in the [body types migration section](#response-body-types), this trait has introduced an associated `type Body`. The simplest migration will be to use `BoxBody` + `.map_into_boxed_body()` but if there is a more expressive type for your responder then try to use that instead.

-TODO
+```diff
+  impl Responder for &'static str {
+-     type Error = Error;
+-     type Future = Ready<Result<HttpResponse, Error>>;
+     type Body = &'static str;

-## It's probably not necessary to import `actix-rt` or `actix-service` any more
+-     fn respond_to(self, req: &HttpRequest) -> Self::Future {
+     fn respond_to(self, req: &HttpRequest) -> HttpResponse<Self::Body> {
+          let res = HttpResponse::build(StatusCode::OK)
+              .content_type("text/plain; charset=utf-8")
+              .body(self);

-TODO
+-         ok(res)
+         res
+      }
+  }
+```

-## Server must be awaited in order to run :warning:
+## `App::data` Deprecation :warning:

-TODO
+The `App::data` method is deprecated. Replace instances of this with `App::app_data`. Exposing both methods led to lots of confusion when trying to extract the data in handlers. Now, when using the `Data` wrapper, the type you put in to `app_data` is the same type you extract in handler arguments.
+
+You may need to review the [guidance on shared mutable state](https://docs.rs/actix-web/4/actix_web/struct.App.html#shared-mutable-state) in order to migrate this correctly.
+
+```diff
+  use actix_web::web::Data;
+
+  #[get("/")]
+  async fn handler(my_state: Data<MyState>) -> { todo!() }
+
+  HttpServer::new(|| {
+-     App::new()
+-         .data(MyState::default())
+-         .service(hander)
+
+     let my_state: Data<MyState> = Data::new(MyState::default());
+
+     App::new()
+         .app_data(my_state)
+         .service(hander)
+  })
+```
+
+## Direct Dependency On `actix-rt` And `actix-service`
+
+Improvements to module management and re-exports have resulted in not needing direct dependencies on these underlying crates for the vast majority of cases. In particular:
+
+- all traits necessary for creating middlewares are now re-exported through the `dev` modules;
+- `#[actix_web::test]` now exists for async test definitions.
+
+Relying on these re-exports will ease the transition to future versions of Actix Web.
+
+```diff
+- use actix_service::{Service, Transform};
+ use actix_web::dev::{Service, Transform};
+```
+
+```diff
+- #[actix_rt::test]
+ #[actix_web::test]
+  async fn test_thing() {
+```
+
+## Server Must Be Polled :warning:
+
+In order to _start_ serving requests, the `Server` object returned from `run` **must** be `poll`ed, `await`ed, or `spawn`ed. This was done to prevent unexpected behavior and ensure that things like signal handlers are able to function correctly when enabled.
+
+For example, in this contrived example where the server is started and then the main thread is sent to sleep, the server will no longer be able to serve requests with v4.0:
+
+```rust
+#[actix_web::main]
+async fn main() {
+    HttpServer::new(|| App::new().default_service(web::to(HttpResponse::Conflict)))
+        .bind(("127.0.0.1", 8080))
+        .unwrap()
+        .run();
+
+    thread::sleep(Duration::from_secs(1000));
+}
+```

 ## Guards API

-TODO
+Implementors of routing guards will need to use the modified interface of the `Guard` trait. The API is more flexible than before. See [guard module docs](https://docs.rs/actix-web/4/actix_web/guard/struct.GuardContext.html) for more details.

-## HttpResponse no longer implements Future
+```diff
+  struct MethodGuard(HttpMethod);

-TODO
+  impl Guard for MethodGuard {
+-     fn check(&self, request: &RequestHead) -> bool {
+     fn check(&self, ctx: &GuardContext<'_>) -> bool {
+-         request.method == self.0
+         ctx.head().method == self.0
+      }
+  }
+```
+
+## Returning `HttpResponse` synchronously
+
+The implementation of `Future` for `HttpResponse` was removed because it was largely useless for all but the simplest handlers like `web::to(|| HttpResponse::Ok().finish())`. It also caused false positives on the `async_yields_async` clippy lint in reasonable scenarios. The compiler errors will looks something like:
+
+```
+web::to(|| HttpResponse::Ok().finish())
+^^^^^^^ the trait `Handler<_>` is not implemented for `[closure@...]`
+```
+
+This form should be replaced with explicit async functions and closures:
+
+```diff
+- fn handler() -> HttpResponse {
+ async fn handler() -> HttpResponse {
+      HttpResponse::Ok().finish()
+  }
+```
+
+```diff
+- web::to(|| HttpResponse::Ok().finish())
+ web::to(|| async { HttpResponse::Ok().finish() })
+```
+
+Or, for these extremely simple cases, utilise an `HttpResponseBuilder`:
+
+```diff
+- web::to(|| HttpResponse::Ok().finish())
+ web::to(HttpResponse::Ok)
+```

 ## `#[actix_web::main]` and `#[tokio::main]`

-TODO
+Actix Web now works seamlessly with the primary way of starting a multi-threaded Tokio runtime, `#[tokio::main]`. Therefore, it is no longer necessary to spawn a thread when you need to run something alongside Actix Web that uses Tokio's multi-threaded mode; you can simply await the server within this context or, if preferred, use `tokio::spawn` just like any other async task.
+
+For now, `actix` actor support (and therefore WebSocket support via `actix-web-actors`) still requires `#[actix_web::main]` so that a `System` context is created. Designs are being created for an alternative WebSocket interface that does not require actors that should land sometime in the v4.x cycle.
+
+## `web::block`
+
+The `web::block` helper has changed return type from roughly `async fn(fn() -> Result<T, E>) Result<T, BlockingError<E>>` to `async fn(fn() -> T) Result<T, BlockingError>`. That's to say that the blocking function can now return things that are not `Result`s and it does not wrap error types anymore. If you still need to return `Result`s then you'll likely want to use double `?` after the `.await`.
+
+```diff
+- let n: u32 = web::block(|| Ok(123)).await?;
+ let n: u32 = web::block(|| 123).await?;
+
+- let n: u32 = web::block(|| Ok(123)).await?;
+ let n: u32 = web::block(|| Ok(123)).await??;
+```
--- a/actix-web/README.md
+++ b/actix-web/README.md
@ -6,10 +6,10 @@
  <p>

 [![crates.io](https://img.shields.io/crates/v/actix-web?label=latest)](https://crates.io/crates/actix-web)
-[![Documentation](https://docs.rs/actix-web/badge.svg?version=4.0.0-rc.3)](https://docs.rs/actix-web/4.0.0-rc.3)
+[![Documentation](https://docs.rs/actix-web/badge.svg?version=4.0.1)](https://docs.rs/actix-web/4.0.1)
 ![MSRV](https://img.shields.io/badge/rustc-1.54+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-web.svg)
-[![Dependency Status](https://deps.rs/crate/actix-web/4.0.0-rc.3/status.svg)](https://deps.rs/crate/actix-web/4.0.0-rc.3)
+[![Dependency Status](https://deps.rs/crate/actix-web/4.0.1/status.svg)](https://deps.rs/crate/actix-web/4.0.1)
 <br />
 [![CI](https://github.com/actix/actix-web/actions/workflows/ci.yml/badge.svg)](https://github.com/actix/actix-web/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/actix/actix-web/branch/master/graph/badge.svg)](https://codecov.io/gh/actix/actix-web)
@ -48,7 +48,7 @@ Dependencies:

 ```toml
 [dependencies]
-actix-web = "4.0.0-rc.1"
+actix-web = "4"
 ```

 Code:
@ -71,22 +71,24 @@ async fn main() -> std::io::Result<()> {
 }
 ```

-### More examples
+### More Examples

- [Basic Setup](https://github.com/actix/examples/tree/master/basics/basics/)
- [Application State](https://github.com/actix/examples/tree/master/basics/state/)
- [JSON Handling](https://github.com/actix/examples/tree/master/json/json/)
- [Multipart Streams](https://github.com/actix/examples/tree/master/forms/multipart/)
- [Diesel Integration](https://github.com/actix/examples/tree/master/database_interactions/diesel/)
- [r2d2 Integration](https://github.com/actix/examples/tree/master/database_interactions/r2d2/)
- [Simple WebSocket](https://github.com/actix/examples/tree/master/websockets/websocket/)
- [Tera Templates](https://github.com/actix/examples/tree/master/template_engines/tera/)
- [Askama Templates](https://github.com/actix/examples/tree/master/template_engines/askama/)
- [HTTPS using Rustls](https://github.com/actix/examples/tree/master/security/rustls/)
- [HTTPS using OpenSSL](https://github.com/actix/examples/tree/master/security/openssl/)
- [WebSocket Chat](https://github.com/actix/examples/tree/master/websockets/chat/)
+- [Hello World](https://github.com/actix/examples/tree/master/basics/hello-world)
+- [Basic Setup](https://github.com/actix/examples/tree/master/basics/basics)
+- [Application State](https://github.com/actix/examples/tree/master/basics/state)
+- [JSON Handling](https://github.com/actix/examples/tree/master/json/json)
+- [Multipart Streams](https://github.com/actix/examples/tree/master/forms/multipart)
+- [Diesel Integration](https://github.com/actix/examples/tree/master/databases/diesel)
+- [SQLite Integration](https://github.com/actix/examples/tree/master/databases/sqlite)
+- [Postgres Integration](https://github.com/actix/examples/tree/master/databases/postgres)
+- [Tera Templates](https://github.com/actix/examples/tree/master/templating/tera)
+- [Askama Templates](https://github.com/actix/examples/tree/master/templating/askama)
+- [HTTPS using Rustls](https://github.com/actix/examples/tree/master/https-tls/rustls)
+- [HTTPS using OpenSSL](https://github.com/actix/examples/tree/master/https-tls/openssl)
+- [Simple WebSocket](https://github.com/actix/examples/tree/master/websockets)
+- [WebSocket Chat](https://github.com/actix/examples/tree/master/websockets/chat)

-You may consider checking out [this directory](https://github.com/actix/examples/tree/master/) for more examples.
+You may consider checking out [this directory](https://github.com/actix/examples/tree/master) for more examples.

 ## Benchmarks

@ -101,5 +103,4 @@ This project is licensed under either of the following licenses, at your option:

 ## Code of Conduct

-Contribution to the actix-web repo is organized under the terms of the Contributor Covenant.
-The Actix team promises to intervene to uphold that code of conduct.
+Contribution to the actix-web repo is organized under the terms of the Contributor Covenant. The Actix team promises to intervene to uphold that code of conduct.
--- a/actix-web/examples/on-connect.rs
+++ b/actix-web/examples/on-connect.rs
@ -2,7 +2,7 @@
 //! properties and pass them to a handler through request-local data.
 //!
 //! For an example of extracting a client TLS certificate, see:
-//! <https://github.com/actix/examples/tree/HEAD/security/rustls-client-cert>
+//! <https://github.com/actix/examples/tree/master/https-tls/rustls-client-cert>

 use std::{any::Any, io, net::SocketAddr};

--- a/actix-web/src/app.rs
+++ b/actix-web/src/app.rs
@ -290,12 +290,10 @@ where
    ///     Ok(HttpResponse::Ok().into())
    /// }
    ///
-    /// fn main() {
-    ///     let app = App::new()
-    ///         .service(web::resource("/index.html").route(
-    ///             web::get().to(index)))
-    ///         .external_resource("youtube", "https://youtube.com/watch/{video_id}");
-    /// }
+    /// let app = App::new()
+    ///     .service(web::resource("/index.html").route(
+    ///         web::get().to(index)))
+    ///     .external_resource("youtube", "https://youtube.com/watch/{video_id}");
    /// ```
    pub fn external_resource<N, U>(mut self, name: N, url: U) -> Self
    where
--- a/actix-web/src/dev.rs
+++ b/actix-web/src/dev.rs
@ -2,6 +2,10 @@
 //!
 //! Most users will not have to interact with the types in this module, but it is useful for those
 //! writing extractors, middleware, libraries, or interacting with the service API directly.
+//!
+//! # Request Extractors
+//! - [`ConnectionInfo`]: Connection information
+//! - [`PeerAddr`]: Connection information

 pub use actix_http::{Extensions, Payload, RequestHead, Response, ResponseHead};
 pub use actix_router::{Path, ResourceDef, ResourcePath, Url};
--- a/actix-web/src/error/error.rs
+++ b/actix-web/src/error/error.rs
@ -47,7 +47,6 @@ impl fmt::Debug for Error {

 impl StdError for Error {
    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
-        // TODO: populate if replacement for Box<dyn Error> is found
        None
    }
 }
--- a/actix-web/src/error/mod.rs
+++ b/actix-web/src/error/mod.rs
@ -6,7 +6,7 @@
 //
 // See <https://github.com/rust-lang/rust/issues/83375>
 pub use actix_http::error::{
-    BlockingError, ContentTypeError, DispatchError, HttpError, ParseError, PayloadError,
+    ContentTypeError, DispatchError, HttpError, ParseError, PayloadError,
 };

 use derive_more::{Display, Error, From};
@ -33,6 +33,14 @@ pub(crate) use macros::{downcast_dyn, downcast_get_type_id};
 /// This type alias is generally used to avoid writing out `actix_http::Error` directly.
 pub type Result<T, E = Error> = std::result::Result<T, E>;

+/// An error representing a problem running a blocking task on a thread pool.
+#[derive(Debug, Display, Error)]
+#[display(fmt = "Blocking thread pool is shut down unexpectedly")]
+#[non_exhaustive]
+pub struct BlockingError;
+
+impl ResponseError for crate::error::BlockingError {}
+
 /// Errors which can occur when attempting to generate resource uri.
 #[derive(Debug, PartialEq, Display, Error, From)]
 #[non_exhaustive]
--- a/actix-web/src/error/response_error.rs
+++ b/actix-web/src/error/response_error.rs
@ -6,20 +6,22 @@ use std::{
    io::{self, Write as _},
 };

-use actix_http::{
-    body::BoxBody,
-    header::{self, TryIntoHeaderValue},
-    Response, StatusCode,
-};
+use actix_http::Response;
 use bytes::BytesMut;

 use crate::{
+    body::BoxBody,
    error::{downcast_dyn, downcast_get_type_id},
-    helpers, HttpResponse,
+    helpers,
+    http::{
+        header::{self, TryIntoHeaderValue},
+        StatusCode,
+    },
+    HttpResponse,
 };

 /// Errors that can generate responses.
-// TODO: add std::error::Error bound when replacement for Box<dyn Error> is found
+// TODO: flesh out documentation
 pub trait ResponseError: fmt::Debug + fmt::Display {
    /// Returns appropriate status code for error.
    ///
@ -73,7 +75,6 @@ impl ResponseError for std::str::Utf8Error {

 impl ResponseError for std::io::Error {
    fn status_code(&self) -> StatusCode {
-        // TODO: decide if these errors should consider not found or permission errors
        match self.kind() {
            io::ErrorKind::NotFound => StatusCode::NOT_FOUND,
            io::ErrorKind::PermissionDenied => StatusCode::FORBIDDEN,
@ -86,7 +87,6 @@ impl ResponseError for actix_http::error::HttpError {}

 impl ResponseError for actix_http::Error {
    fn status_code(&self) -> StatusCode {
-        // TODO: map error kinds to status code better
        StatusCode::INTERNAL_SERVER_ERROR
    }

@ -107,8 +107,6 @@ impl ResponseError for actix_http::error::ParseError {
    }
 }

-impl ResponseError for actix_http::error::BlockingError {}
-
 impl ResponseError for actix_http::error::PayloadError {
    fn status_code(&self) -> StatusCode {
        match *self {
--- a/actix-web/src/extract.rs
+++ b/actix-web/src/extract.rs
@ -118,12 +118,10 @@ pub trait FromRequest: Sized {
 ///     }
 /// }
 ///
-/// fn main() {
-///     let app = App::new().service(
-///         web::resource("/users/:first").route(
-///             web::post().to(index))
-///     );
-/// }
+/// let app = App::new().service(
+///     web::resource("/users/:first").route(
+///         web::post().to(index))
+/// );
 /// ```
 impl<T> FromRequest for Option<T>
 where
@ -205,11 +203,9 @@ where
 ///     }
 /// }
 ///
-/// fn main() {
-///     let app = App::new().service(
-///         web::resource("/users/:first").route(web::post().to(index))
-///     );
-/// }
+/// let app = App::new().service(
+///     web::resource("/users/:first").route(web::post().to(index))
+/// );
 /// ```
 impl<T, E> FromRequest for Result<T, E>
 where
--- a/actix-web/src/http/mod.rs
+++ b/actix-web/src/http/mod.rs
@ -2,5 +2,4 @@

 pub mod header;

-// TODO: figure out how best to expose http::Error vs actix_http::Error
 pub use actix_http::{uri, ConnectionType, Error, KeepAlive, Method, StatusCode, Uri, Version};
--- a/actix-web/src/middleware/authors-guide.md
+++ b/actix-web/src/middleware/authors-guide.md
@ -0,0 +1,13 @@
+# Middleware Author's Guide
+
+## What Is A Middleware?
+
+## Middleware Traits
+
+## Understanding Body Types
+
+## Best Practices
+
+## Error Propagation
+
+## When To (Not) Use Middleware
--- a/actix-web/src/middleware/err_handlers.rs
+++ b/actix-web/src/middleware/err_handlers.rs
@ -185,6 +185,7 @@ mod tests {

    use super::*;
    use crate::{
+        body,
        http::{
            header::{HeaderValue, CONTENT_TYPE},
            StatusCode,
@ -203,7 +204,7 @@ mod tests {
            Ok(ErrorHandlerResponse::Response(res.map_into_left_body()))
        }

-        let srv = test::simple_service(StatusCode::INTERNAL_SERVER_ERROR);
+        let srv = test::status_service(StatusCode::INTERNAL_SERVER_ERROR);

        let mw = ErrorHandlers::new()
            .handler(StatusCode::INTERNAL_SERVER_ERROR, error_handler)
@ -230,7 +231,7 @@ mod tests {
            ))
        }

-        let srv = test::simple_service(StatusCode::INTERNAL_SERVER_ERROR);
+        let srv = test::status_service(StatusCode::INTERNAL_SERVER_ERROR);

        let mw = ErrorHandlers::new()
            .handler(StatusCode::INTERNAL_SERVER_ERROR, error_handler)
@ -245,9 +246,7 @@ mod tests {
    #[actix_rt::test]
    async fn changes_body_type() {
        #[allow(clippy::unnecessary_wraps)]
-        fn error_handler<B: 'static>(
-            res: ServiceResponse<B>,
-        ) -> Result<ErrorHandlerResponse<B>> {
+        fn error_handler<B>(res: ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
            let (req, res) = res.into_parts();
            let res = res.set_body(Bytes::from("sorry, that's no bueno"));

@ -258,7 +257,7 @@ mod tests {
            Ok(ErrorHandlerResponse::Response(res))
        }

-        let srv = test::simple_service(StatusCode::INTERNAL_SERVER_ERROR);
+        let srv = test::status_service(StatusCode::INTERNAL_SERVER_ERROR);

        let mw = ErrorHandlers::new()
            .handler(StatusCode::INTERNAL_SERVER_ERROR, error_handler)
@ -270,5 +269,33 @@ mod tests {
        assert_eq!(test::read_body(res).await, "sorry, that's no bueno");
    }

-    // TODO: test where error is thrown
+    #[actix_rt::test]
+    async fn error_thrown() {
+        #[allow(clippy::unnecessary_wraps)]
+        fn error_handler<B>(_res: ServiceResponse<B>) -> Result<ErrorHandlerResponse<B>> {
+            Err(crate::error::ErrorInternalServerError(
+                "error in error handler",
+            ))
+        }
+
+        let srv = test::status_service(StatusCode::BAD_REQUEST);
+
+        let mw = ErrorHandlers::new()
+            .handler(StatusCode::BAD_REQUEST, error_handler)
+            .new_transform(srv.into_service())
+            .await
+            .unwrap();
+
+        let err = mw
+            .call(TestRequest::default().to_srv_request())
+            .await
+            .unwrap_err();
+        let res = err.error_response();
+
+        assert_eq!(res.status(), StatusCode::INTERNAL_SERVER_ERROR);
+        assert_eq!(
+            body::to_bytes(res.into_body()).await.unwrap(),
+            "error in error handler"
+        );
+    }
 }
--- a/actix-web/src/request.rs
+++ b/actix-web/src/request.rs
@ -407,12 +407,10 @@ impl Drop for HttpRequest {
 ///    format!("Got thing: {:?}", req)
 /// }
 ///
-/// fn main() {
-///     let app = App::new().service(
-///         web::resource("/users/{first}").route(
-///             web::get().to(index))
-///     );
-/// }
+/// let app = App::new().service(
+///     web::resource("/users/{first}").route(
+///         web::get().to(index))
+/// );
 /// ```
 impl FromRequest for HttpRequest {
    type Error = Error;
--- a/actix-web/src/resource.rs
+++ b/actix-web/src/resource.rs
@ -93,19 +93,17 @@ where
    ///     "Welcome!"
    /// }
    ///
-    /// fn main() {
-    ///     let app = App::new()
-    ///         .service(
-    ///             web::resource("/app")
-    ///                 .guard(guard::Header("content-type", "text/plain"))
-    ///                 .route(web::get().to(index))
-    ///         )
-    ///         .service(
-    ///             web::resource("/app")
-    ///                 .guard(guard::Header("content-type", "text/json"))
-    ///                 .route(web::get().to(|| HttpResponse::MethodNotAllowed()))
-    ///         );
-    /// }
+    /// let app = App::new()
+    ///     .service(
+    ///         web::resource("/app")
+    ///             .guard(guard::Header("content-type", "text/plain"))
+    ///             .route(web::get().to(index))
+    ///     )
+    ///     .service(
+    ///         web::resource("/app")
+    ///             .guard(guard::Header("content-type", "text/json"))
+    ///             .route(web::get().to(|| HttpResponse::MethodNotAllowed()))
+    ///     );
    /// ```
    pub fn guard<G: Guard + 'static>(mut self, guard: G) -> Self {
        self.guards.push(Box::new(guard));
@ -137,14 +135,13 @@ where
    /// ```
    /// use actix_web::{web, guard, App};
    ///
-    /// fn main() {
-    ///     let app = App::new().service(
-    ///         web::resource("/container/")
-    ///              .route(web::get().to(get_handler))
-    ///              .route(web::post().to(post_handler))
-    ///              .route(web::delete().to(delete_handler))
-    ///     );
-    /// }
+    /// let app = App::new().service(
+    ///     web::resource("/container/")
+    ///          .route(web::get().to(get_handler))
+    ///          .route(web::post().to(post_handler))
+    ///          .route(web::delete().to(delete_handler))
+    /// );
+    ///
    /// # async fn get_handler() -> impl actix_web::Responder { actix_web::HttpResponse::Ok() }
    /// # async fn post_handler() -> impl actix_web::Responder { actix_web::HttpResponse::Ok() }
    /// # async fn delete_handler() -> impl actix_web::Responder { actix_web::HttpResponse::Ok() }
--- a/actix-web/src/response/customize_responder.rs
+++ b/actix-web/src/response/customize_responder.rs
@ -7,7 +7,7 @@ use crate::{HttpRequest, HttpResponse, Responder};

 /// Allows overriding status code and headers for a [`Responder`].
 ///
-/// Created by the [`Responder::customize`] method.
+/// Created by calling the [`customize`](Responder::customize) method on a [`Responder`] type.
 pub struct CustomizeResponder<R> {
    inner: CustomizeResponderInner<R>,
    error: Option<HttpError>,
--- a/actix-web/src/response/responder.rs
+++ b/actix-web/src/response/responder.rs
@ -7,14 +7,35 @@ use actix_http::{
 };
 use bytes::{Bytes, BytesMut};

-use crate::{Error, HttpRequest, HttpResponse};
-
 use super::CustomizeResponder;
+use crate::{Error, HttpRequest, HttpResponse};

 /// Trait implemented by types that can be converted to an HTTP response.
 ///
-/// Any types that implement this trait can be used in the return type of a handler.
-// # TODO: more about implementation notes and foreign impls
+/// Any types that implement this trait can be used in the return type of a handler. Since handlers
+/// will only have one return type, it is idiomatic to use opaque return types `-> impl Responder`.
+///
+/// # Implementations
+/// It is often not required to implement `Responder` for your own types due to a broad base of
+/// built-in implementations:
+/// - `HttpResponse` and `HttpResponseBuilder`
+/// - `Option<R>` where `R: Responder`
+/// - `Result<R, E>` where `R: Responder` and [`E: ResponseError`](crate::ResponseError)
+/// - `(R, StatusCode) where `R: Responder`
+/// - `&'static str`, `String`, `&'_ String`, `Cow<'_, str>`, [`ByteString`](bytestring::ByteString)
+/// - `&'static [u8]`, `Vec<u8>`, `Bytes`, `BytesMut`
+/// - [`Json<T>`](crate::web::Json) and [`Form<T>`](crate::web::Form) where `T: Serialize`
+/// - [`Either<L, R>`](crate::web::Either) where `L: Serialize` and `R: Serialize`
+/// - [`CustomizeResponder<R>`]
+/// - [`actix_files::NamedFile`](https://docs.rs/actix-files/latest/actix_files/struct.NamedFile.html)
+/// - [Experimental responders from `actix-web-lab`](https://docs.rs/actix-web-lab/latest/actix_web_lab/respond/index.html)
+/// - Third party integrations may also have implemented `Responder` where appropriate. For example,
+///   HTML templating engines.
+///
+/// # Customizing Responder Output
+/// Calling [`.customize()`](Responder::customize) on any responder type will wrap it in a
+/// [`CustomizeResponder`] capable of overriding various parts of the response such as the status
+/// code and header map.
 pub trait Responder {
    type Body: MessageBody + 'static;

@ -23,7 +44,7 @@ pub trait Responder {

    /// Wraps responder to allow alteration of its response.
    ///
-    /// See [`CustomizeResponder`] docs for its capabilities.
+    /// See [`CustomizeResponder`] docs for more details on its capabilities.
    ///
    /// # Examples
    /// ```
@ -47,6 +68,15 @@ pub trait Responder {
        CustomizeResponder::new(self)
    }

+    #[doc(hidden)]
+    #[deprecated(since = "4.0.0", note = "Prefer `.customize().with_status(header)`.")]
+    fn with_status(self, status: StatusCode) -> CustomizeResponder<Self>
+    where
+        Self: Sized,
+    {
+        self.customize().with_status(status)
+    }
+
    #[doc(hidden)]
    #[deprecated(since = "4.0.0", note = "Prefer `.customize().insert_header(header)`.")]
    fn with_header(self, header: impl TryIntoHeaderPair) -> CustomizeResponder<Self>
@ -75,11 +105,8 @@ impl Responder for actix_http::ResponseBuilder {
    }
 }

-impl<T> Responder for Option<T>
-where
-    T: Responder,
-{
-    type Body = EitherBody<T::Body>;
+impl<R: Responder> Responder for Option<R> {
+    type Body = EitherBody<R::Body>;

    fn respond_to(self, req: &HttpRequest) -> HttpResponse<Self::Body> {
        match self {
@ -89,12 +116,12 @@ where
    }
 }

-impl<T, E> Responder for Result<T, E>
+impl<R, E> Responder for Result<R, E>
 where
-    T: Responder,
+    R: Responder,
    E: Into<Error>,
 {
-    type Body = EitherBody<T::Body>;
+    type Body = EitherBody<R::Body>;

    fn respond_to(self, req: &HttpRequest) -> HttpResponse<Self::Body> {
        match self {
@ -104,8 +131,8 @@ where
    }
 }

-impl<T: Responder> Responder for (T, StatusCode) {
-    type Body = T::Body;
+impl<R: Responder> Responder for (R, StatusCode) {
+    type Body = R::Body;

    fn respond_to(self, req: &HttpRequest) -> HttpResponse<Self::Body> {
        let mut res = self.0.respond_to(req);
@ -138,6 +165,7 @@ impl_responder_by_forward_into_base_response!(BytesMut);

 impl_responder_by_forward_into_base_response!(&'static str);
 impl_responder_by_forward_into_base_response!(String);
+impl_responder_by_forward_into_base_response!(bytestring::ByteString);

 macro_rules! impl_into_string_responder {
    ($res:ty) => {
--- a/actix-web/src/response/response.rs
+++ b/actix-web/src/response/response.rs
@ -323,12 +323,6 @@ impl From<Error> for HttpResponse {
 impl<B> From<HttpResponse<B>> for Response<B> {
    fn from(res: HttpResponse<B>) -> Self {
        // this impl will always be called as part of dispatcher
-
-        // TODO: expose cause somewhere?
-        // if let Some(err) = res.error {
-        //     return Response::from_error(err);
-        // }
-
        res.res
    }
 }
--- a/actix-web/src/test/mod.rs
+++ b/actix-web/src/test/mod.rs
@ -5,7 +5,7 @@
 //!
 //! # Off-The-Shelf Test Services
 //! - [`ok_service`]
-//! - [`simple_service`]
+//! - [`status_service`]
 //!
 //! # Calling Test Service
 //! - [`TestRequest`]
@ -27,7 +27,7 @@ mod test_utils;

 pub use self::test_request::TestRequest;
 #[allow(deprecated)]
-pub use self::test_services::{default_service, ok_service, simple_service};
+pub use self::test_services::{default_service, ok_service, simple_service, status_service};
 #[allow(deprecated)]
 pub use self::test_utils::{
    call_and_read_body, call_and_read_body_json, call_service, init_service, read_body,
--- a/actix-web/src/test/test_services.rs
+++ b/actix-web/src/test/test_services.rs
@ -10,11 +10,11 @@ use crate::{
 /// Creates service that always responds with `200 OK` and no body.
 pub fn ok_service(
 ) -> impl Service<ServiceRequest, Response = ServiceResponse<BoxBody>, Error = Error> {
-    simple_service(StatusCode::OK)
+    status_service(StatusCode::OK)
 }

 /// Creates service that always responds with given status code and no body.
-pub fn simple_service(
+pub fn status_service(
    status_code: StatusCode,
 ) -> impl Service<ServiceRequest, Response = ServiceResponse<BoxBody>, Error = Error> {
    fn_service(move |req: ServiceRequest| {
@ -23,9 +23,17 @@ pub fn simple_service(
 }

 #[doc(hidden)]
-#[deprecated(since = "4.0.0", note = "Renamed to `simple_service`.")]
+#[deprecated(since = "4.0.0", note = "Renamed to `status_service`.")]
+pub fn simple_service(
+    status_code: StatusCode,
+) -> impl Service<ServiceRequest, Response = ServiceResponse<BoxBody>, Error = Error> {
+    status_service(status_code)
+}
+
+#[doc(hidden)]
+#[deprecated(since = "4.0.0", note = "Renamed to `status_service`.")]
 pub fn default_service(
    status_code: StatusCode,
 ) -> impl Service<ServiceRequest, Response = ServiceResponse<BoxBody>, Error = Error> {
-    simple_service(status_code)
+    status_service(status_code)
 }
--- a/actix-web/src/test/test_utils.rs
+++ b/actix-web/src/test/test_utils.rs
@ -89,7 +89,7 @@ where
 /// ```
 ///
 /// # Panics
-/// Panics if service call returns error.
+/// Panics if service call returns error. To handle errors use `app.call(req)`.
 pub async fn call_service<S, R, B, E>(app: &S, req: R) -> S::Response
 where
    S: Service<R, Response = ServiceResponse<B>, Error = E>,
--- a/actix-web/src/types/path.rs
+++ b/actix-web/src/types/path.rs
@ -53,9 +53,7 @@ use crate::{
 ///     format!("Welcome {}!", info.name)
 /// }
 /// ```
-#[derive(
-    Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Deref, DerefMut, AsRef, Display, From,
-)]
+#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Deref, DerefMut, AsRef, Display, From)]
 pub struct Path<T>(T);

 impl<T> Path<T> {
--- a/actix-web/src/web.rs
+++ b/actix-web/src/web.rs
@ -1,4 +1,18 @@
 //! Essentials helper functions and types for application registration.
+//!
+//! # Request Extractors
+//! - [`Data`]: Application data item
+//! - [`ReqData`]: Request-local data item
+//! - [`Path`]: URL path parameters / dynamic segments
+//! - [`Query`]: URL query parameters
+//! - [`Header`]: Typed header
+//! - [`Json`]: JSON payload
+//! - [`Form`]: URL-encoded payload
+//! - [`Bytes`]: Raw payload
+//!
+//! # Responders
+//! - [`Json`]: JSON request payload
+//! - [`Bytes`]: Raw request payload

 use std::future::Future;

@ -12,9 +26,7 @@ use crate::{

 pub use crate::config::ServiceConfig;
 pub use crate::data::Data;
-pub use crate::request::HttpRequest;
 pub use crate::request_data::ReqData;
-pub use crate::response::HttpResponse;
 pub use crate::types::*;

 /// Creates a new resource for a specific path.
--- a/awc/CHANGES.md
+++ b/awc/CHANGES.md
@ -3,6 +3,10 @@
 ## Unreleased - 2021-xx-xx


+## 3.0.0-beta.21 - 2022-02-16
+- No significant changes since `3.0.0-beta.20`.
+
+
 ## 3.0.0-beta.20 - 2022-01-31
 - No significant changes since `3.0.0-beta.19`.

--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@ -1,6 +1,6 @@
 [package]
 name = "awc"
-version = "3.0.0-beta.20"
+version = "3.0.0-beta.21"
 authors = [
    "Nikolay Kim <fafhrd91@gmail.com>",
    "fakeshadow <24548779@qq.com>",
@ -58,11 +58,11 @@ __compress = []
 dangerous-h2c = []

 [dependencies]
-actix-codec = "0.4.1"
+actix-codec = "0.5"
 actix-service = "2.0.0"
-actix-http = { version = "3.0.0-rc.2", features = ["http2", "ws"] }
+actix-http = { version = "3.0.0", features = ["http2", "ws"] }
 actix-rt = { version = "2.1", default-features = false }
-actix-tls = { version = "3.0.0", features = ["connect", "uri"] }
+actix-tls = { version = "3", features = ["connect", "uri"] }
 actix-utils = "3.0.0"

 ahash = "0.7"
@ -93,13 +93,13 @@ tls-rustls = { package = "rustls", version = "0.20.0", optional = true, features
 trust-dns-resolver = { version = "0.20.0", optional = true }

 [dev-dependencies]
-actix-http = { version = "3.0.0-rc.2", features = ["openssl"] }
-actix-http-test = { version = "3.0.0-beta.12", features = ["openssl"] }
+actix-http = { version = "3.0.0", features = ["openssl"] }
+actix-http-test = { version = "3.0.0-beta.13", features = ["openssl"] }
 actix-server = "2"
-actix-test = { version = "0.1.0-beta.12", features = ["openssl", "rustls"] }
-actix-tls = { version = "3.0.0", features = ["openssl", "rustls"] }
+actix-test = { version = "0.1.0-beta.13", features = ["openssl", "rustls"] }
+actix-tls = { version = "3", features = ["openssl", "rustls"] }
 actix-utils = "3.0.0"
-actix-web = { version = "4.0.0-rc.3", features = ["openssl"] }
+actix-web = { version = "4.0.0", features = ["openssl"] }

 brotli = "3.3.3"
 const-str = "0.3"
--- a/awc/README.md
+++ b/awc/README.md
@ -3,15 +3,15 @@
 > Async HTTP and WebSocket client library.

 [![crates.io](https://img.shields.io/crates/v/awc?label=latest)](https://crates.io/crates/awc)
-[![Documentation](https://docs.rs/awc/badge.svg?version=3.0.0-beta.20)](https://docs.rs/awc/3.0.0-beta.20)
+[![Documentation](https://docs.rs/awc/badge.svg?version=3.0.0-beta.21)](https://docs.rs/awc/3.0.0-beta.21)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/awc)
-[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.20/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.20)
+[![Dependency Status](https://deps.rs/crate/awc/3.0.0-beta.21/status.svg)](https://deps.rs/crate/awc/3.0.0-beta.21)
 [![Chat on Discord](https://img.shields.io/discord/771444961383153695?label=chat&logo=discord)](https://discord.gg/NWpN5mmg3x)

 ## Documentation & Resources

 - [API Documentation](https://docs.rs/awc)
- [Example Project](https://github.com/actix/examples/tree/HEAD/security/awc_https)
+- [Example Project](https://github.com/actix/examples/tree/master/https-tls/awc-https)
 - Minimum Supported Rust Version (MSRV): 1.54

 ## Example
--- a/awc/src/any_body.rs
+++ b/awc/src/any_body.rs
@ -160,7 +160,7 @@ impl<S: fmt::Debug> fmt::Debug for AnyBody<S> {
 mod tests {
    use std::marker::PhantomPinned;

-    use static_assertions::{assert_impl_all, assert_not_impl_all};
+    use static_assertions::{assert_impl_all, assert_not_impl_any};

    use super::*;

@ -181,12 +181,12 @@ mod tests {
        }
    }

-    assert_impl_all!(AnyBody<()>: MessageBody, fmt::Debug, Send, Sync, Unpin);
-    assert_impl_all!(AnyBody<AnyBody<()>>: MessageBody, fmt::Debug, Send, Sync, Unpin);
-    assert_impl_all!(AnyBody<Bytes>: MessageBody, fmt::Debug, Send, Sync, Unpin);
-    assert_impl_all!(AnyBody: MessageBody, fmt::Debug, Unpin);
-    assert_impl_all!(AnyBody<PinType>: MessageBody);
+    assert_impl_all!(AnyBody<()>: Send, Sync, Unpin, fmt::Debug, MessageBody);
+    assert_impl_all!(AnyBody<AnyBody<()>>: Send, Sync, Unpin, fmt::Debug, MessageBody);
+    assert_impl_all!(AnyBody<Bytes>: Send, Sync, Unpin, fmt::Debug, MessageBody);
+    assert_impl_all!(AnyBody: Unpin, fmt::Debug, MessageBody);
+    assert_impl_all!(AnyBody<PinType>: Send, Sync, MessageBody);

-    assert_not_impl_all!(AnyBody: Send, Sync, Unpin);
-    assert_not_impl_all!(AnyBody<PinType>: Send, Sync, Unpin);
+    assert_not_impl_any!(AnyBody: Send, Sync);
+    assert_not_impl_any!(AnyBody<PinType>: Unpin);
 }
--- a/awc/src/client/pool.rs
+++ b/awc/src/client/pool.rs
@ -232,7 +232,7 @@ where
                None => {
                    let (io, proto) = connector.call(req).await?;

-                    // TODO: remove when http3 is added in support.
+                    // NOTE: remove when http3 is added in support.
                    assert!(proto != Protocol::Http3);

                    if proto == Protocol::Http1 {
--- a/docs/graphs/web-focus.dot
+++ b/docs/graphs/web-focus.dot
@ -34,7 +34,7 @@ digraph {
    "utils" -> { "service" "rt" "codec" }
    "tracing" -> { "service" }
    "tls" -> { "service" "codec" "utils" }
-    "server" -> { "service" "rt" "codec" "utils" }
+    "server" -> { "service" "rt" "utils" }
    "rt" -> { "macros" }

    { rank=same; "utils" "codec" };
Author	SHA1	Message	Date
Rob Ede	fcca515387	prepare actix-multipart release 0.4.0	2022-02-25 20:41:57 +00:00
Rob Ede	075932d823	prepare actix-web-actors release 4.0.0	2022-02-25 20:41:33 +00:00
Rob Ede	cb379c0e0c	prepare actix-files release 0.6.0	2022-02-25 20:36:16 +00:00
Rob Ede	d4a5d450de	prepare actix-web release 4.0.1	2022-02-25 20:31:46 +00:00
Rob Ede	542200cbc2	update readme	2022-02-25 19:11:46 +00:00
Rob Ede	d0c08dbb7d	prepare releases: actix-http 3.0.0 and actix-web 4.0.0 (#2663 )	2022-02-25 18:46:35 +00:00
Rob Ede	d0b5fb18d2	update migration guide on middleware	2022-02-22 17:40:38 +00:00
Rob Ede	12fb3412a5	remove concurrency groups	2022-02-22 12:52:07 +00:00
Rob Ede	2665357a0c	fix ci groups	2022-02-22 12:47:57 +00:00
Rob Ede	693271e571	add CI job concurrency groups	2022-02-22 12:41:08 +00:00
Rob Ede	10ef9b0751	remove useless doctest main fns	2022-02-22 12:32:06 +00:00
Rob Ede	ce00c88963	fix changelog typo	2022-02-22 11:46:51 +00:00
Rob Ede	75e6ffb057	prepare actix-router release 0.5.0 (#2658 )	2022-02-22 11:38:25 +00:00
Rob Ede	ad38973767	move blocking error to web (#2660 )	2022-02-22 08:45:28 +00:00
Rob Ede	1c1d6477ef	remove legacy ws test	2022-02-22 07:11:16 +00:00
Rob Ede	53509a5361	ignore all http1 connection headers in h2	2022-02-22 07:07:12 +00:00
Rob Ede	a6f27baff1	flesh out Responder docs	2022-02-22 07:07:12 +00:00
Rob Ede	218e34ee17	fix http error debug impl	2022-02-22 07:07:12 +00:00
Rob Ede	11bfa84926	rename simple_service to status_service (#2659 )	2022-02-22 07:06:36 +00:00
Rob Ede	5aa6f713c7	update errorhandlers migration guide	2022-02-22 06:23:01 +00:00
Rob Ede	151a15da74	prepare actix-http release 3.0.0-rc.4	2022-02-22 00:21:49 +00:00
Rob Ede	1ce58ecb30	fix dispatcher panic on pending flush fixes thread panic in actix-http-3.0.0-rc.3 #2655	2022-02-22 00:19:48 +00:00
Luca Palmieri	f940653981	Edits to the migration notes (#2654 )	2022-02-19 17:05:54 +00:00
Rob Ede	b291e29882	fix links	2022-02-18 03:41:10 +00:00
Xavier Lange	f843776f36	Fix links in README (#2653 )	2022-02-18 03:34:12 +00:00
Rob Ede	52f7d96358	tweak migration document	2022-02-17 19:13:03 +00:00
Rob Ede	51e573b888	prepare actix-test release 0.1.0-beta.13	2022-02-16 03:13:41 +00:00
Rob Ede	38e015432b	prepare actix-http-test release 3.0.0-beta.13	2022-02-16 03:13:22 +00:00
Rob Ede	f5895d5eff	prepare actix-web-actors release 4.0.0-beta.12	2022-02-16 03:11:22 +00:00
Rob Ede	a0c4bf8d1b	prepare awc release 3.0.0-beta.21	2022-02-16 03:10:01 +00:00
Rob Ede	594e3a6ef1	prepare actix-http release 3.0.0-rc.3	2022-02-16 03:07:12 +00:00
Rob Ede	a808a26d8c	bump actix-codec to 0.5	2022-02-15 20:49:10 +00:00
Rob Ede	de62e8b025	add nextest to post-merge ci	2022-02-15 14:40:26 +00:00
Rob Ede	3486edabcf	update migrations guide re tokio v1	2022-02-15 00:54:12 +00:00
Ibraheem Ahmed	4c59a34513	Remove clone implementation for `Path` (#2639 )	2022-02-10 10:29:00 +00:00
Rob Ede	1b706b3069	update body type migration guide	2022-02-09 16:12:39 +00:00
Rob Ede	a9f445875a	update migration guide	2022-02-09 12:31:06 +00:00
Rob Ede	e0f02c1d9e	update migration guide	2022-02-08 16:53:09 +00:00
Rob Ede	092dbba5b9	update migration guide	2022-02-08 15:24:35 +00:00
Rob Ede	ff4b2d251f	fix impl assertions	2022-02-08 14:32:57 +00:00
Rob Ede	98faa61afe	fix impl assertions	2022-02-08 13:37:01 +00:00