From d0c08dbb7dfd8b2096585a5b613c2be476199e73 Mon Sep 17 00:00:00 2001
From: Rob Ede <robjtede@icloud.com>
Date: Fri, 25 Feb 2022 18:46:35 +0000
Subject: [PATCH] prepare releases: actix-http 3.0.0 and actix-web 4.0.0
 (#2663)

---
 CHANGES.md                   |   2 +-
 actix-files/Cargo.toml       |   6 +-
 actix-http-test/Cargo.toml   |   4 +-
 actix-http/CHANGES.md        | 289 ++++++++++++++++++++++++++++++++++-
 actix-http/Cargo.toml        |   4 +-
 actix-http/README.md         |   4 +-
 actix-multipart/Cargo.toml   |   4 +-
 actix-test/Cargo.toml        |   4 +-
 actix-web-actors/Cargo.toml  |   4 +-
 actix-web-codegen/CHANGES.md |   9 ++
 actix-web-codegen/Cargo.toml |   4 +-
 actix-web-codegen/README.md  |   4 +-
 actix-web/CHANGES.md         | 273 ++++++++++++++++++++++++++++++++-
 actix-web/Cargo.toml         |   6 +-
 actix-web/MIGRATION-4.0.md   |   2 +-
 actix-web/README.md          |   4 +-
 actix-web/src/dev.rs         |   4 +
 actix-web/src/web.rs         |  16 +-
 awc/Cargo.toml               |   6 +-
 19 files changed, 613 insertions(+), 36 deletions(-)

diff --git a/CHANGES.md b/CHANGES.md
index d95c477fdd4..7bec6564059 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-# Changes
+# Changelog
 
 Changelogs are kept separately for each crate in this repo.
 
diff --git a/actix-files/Cargo.toml b/actix-files/Cargo.toml
index 6e7f7402e61..39c5f05c5a5 100644
--- a/actix-files/Cargo.toml
+++ b/actix-files/Cargo.toml
@@ -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.4"
+actix-http = "3.0.0"
 actix-service = "2"
 actix-utils = "3"
-actix-web = { version = "4.0.0-rc.3", default-features = false }
+actix-web = { version = "4.0.0", default-features = false }
 
 askama_escape = "0.10"
 bitflags = "1"
@@ -44,5 +44,5 @@ tokio-uring = { version = "0.2", optional = true, features = ["bytes"] }
 [dev-dependencies]
 actix-rt = "2.2"
 actix-test = "0.1.0-beta.13"
-actix-web = "4.0.0-rc.3"
+actix-web = "4.0.0"
 tempfile = "3.2"
diff --git a/actix-http-test/Cargo.toml b/actix-http-test/Cargo.toml
index 7d310aef9a1..e2a2bcc3dbd 100644
--- a/actix-http-test/Cargo.toml
+++ b/actix-http-test/Cargo.toml
@@ -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.4"
+actix-web = { version = "4.0.0", default-features = false, features = ["cookies"] }
+actix-http = "3.0.0"
diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
index 0561e82fce9..d73e8522f3d 100644
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -1,13 +1,294 @@
 # Changes
 
 ## 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
-- `error::BlockingError` [#2660]
+- 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
@@ -108,7 +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]
@@ -331,7 +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]
@@ -475,6 +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
diff --git a/actix-http/Cargo.toml b/actix-http/Cargo.toml
index b661e251242..751b820e855 100644
--- a/actix-http/Cargo.toml
+++ b/actix-http/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "actix-http"
-version = "3.0.0-rc.4"
+version = "3.0.0"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -100,7 +100,7 @@ zstd = { version = "0.10", optional = true }
 actix-http-test = { version = "3.0.0-beta.13", features = ["openssl"] }
 actix-server = "2"
 actix-tls = { version = "3", features = ["openssl"] }
-actix-web = "4.0.0-rc.3"
+actix-web = "4.0.0"
 
 async-stream = "0.3"
 criterion = { version = "0.3", features = ["html_reports"] }
diff --git a/actix-http/README.md b/actix-http/README.md
index 137b94f3a08..8d414a0fc24 100644
--- 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.4)](https://docs.rs/actix-http/3.0.0-rc.4)
+[![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.4/status.svg)](https://deps.rs/crate/actix-http/3.0.0-rc.4)
+[![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)
 
diff --git a/actix-multipart/Cargo.toml b/actix-multipart/Cargo.toml
index fe7320af233..89d0d370afc 100644
--- a/actix-multipart/Cargo.toml
+++ b/actix-multipart/Cargo.toml
@@ -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.4"
+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"
diff --git a/actix-test/Cargo.toml b/actix-test/Cargo.toml
index 19b67cc7f4c..af4aff56aa7 100644
--- a/actix-test/Cargo.toml
+++ b/actix-test/Cargo.toml
@@ -29,12 +29,12 @@ openssl = ["tls-openssl", "actix-http/openssl", "awc/openssl"]
 
 [dependencies]
 actix-codec = "0.5"
-actix-http = "3.0.0-rc.4"
+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"] }
+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"] }
diff --git a/actix-web-actors/Cargo.toml b/actix-web-actors/Cargo.toml
index 251a03f02e4..4c0e700c70f 100644
--- a/actix-web-actors/Cargo.toml
+++ b/actix-web-actors/Cargo.toml
@@ -16,8 +16,8 @@ path = "src/lib.rs"
 [dependencies]
 actix = { version = "0.12.0", default-features = false }
 actix-codec = "0.5"
-actix-http = "3.0.0-rc.4"
-actix-web = { version = "4.0.0-rc.3", default-features = false }
+actix-http = "3.0.0"
+actix-web = { version = "4.0.0", default-features = false }
 
 bytes = "1"
 bytestring = "1"
diff --git a/actix-web-codegen/CHANGES.md b/actix-web-codegen/CHANGES.md
index 9483f1b35cc..8ee787c0a42 100644
--- 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`.
 
diff --git a/actix-web-codegen/Cargo.toml b/actix-web-codegen/Cargo.toml
index 71ec3148f1b..0d8b8645979 100644
--- 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"
@@ -25,7 +25,7 @@ actix-macros = "0.2.3"
 actix-rt = "2.2"
 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"
diff --git a/actix-web-codegen/README.md b/actix-web-codegen/README.md
index f4e8344f3b0..439beadb47c 100644
--- 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)
 
diff --git a/actix-web/CHANGES.md b/actix-web/CHANGES.md
index ff482314936..b9d56b67d66 100644
--- a/actix-web/CHANGES.md
+++ b/actix-web/CHANGES.md
@@ -1,11 +1,279 @@
-# Changes
+# Changelog
 
 ## Unreleased - 2021-xx-xx
+
+
+## 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
-- Rename `test::{simple_service => status_service}`. [#2659]
+- 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
@@ -453,6 +721,7 @@
 [#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
diff --git a/actix-web/Cargo.toml b/actix-web/Cargo.toml
index 33c897dc7de..43f69cf4639 100644
--- 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 = "4.0.0"
 authors = [
     "Nikolay Kim <fafhrd91@gmail.com>",
     "Rob Ede <robjtede@icloud.com>",
@@ -71,9 +71,9 @@ actix-service = "2"
 actix-utils = "3"
 actix-tls = { version = "3", default-features = false, optional = true }
 
-actix-http = { version = "3.0.0-rc.4", features = ["http2", "ws"] }
+actix-http = { version = "3.0.0", features = ["http2", "ws"] }
 actix-router = "0.5.0"
-actix-web-codegen = { version = "0.5.0-rc.2", optional = true }
+actix-web-codegen = { version = "4.0.0", optional = true }
 
 ahash = "0.7"
 bytes = "1"
diff --git a/actix-web/MIGRATION-4.0.md b/actix-web/MIGRATION-4.0.md
index 787487e4577..6ba6717a6ef 100644
--- a/actix-web/MIGRATION-4.0.md
+++ b/actix-web/MIGRATION-4.0.md
@@ -3,7 +3,7 @@
 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 document is not designed to be exhaustive—it focuses on the most significant changes coming in v4. You can find an exhaustive changelog in [CHANGES.md](./CHANGES.md), 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.
+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**. They will probably not surface as compile-time errors though automated tests _might_ detect their effects on your app.
 
diff --git a/actix-web/README.md b/actix-web/README.md
index e6622452487..b8cf334b480 100644
--- 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=4.0.0)](https://docs.rs/actix-web/4.0.0)
 ![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/4.0.0/status.svg)](https://deps.rs/crate/actix-web/4.0.0)
 <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)
diff --git a/actix-web/src/dev.rs b/actix-web/src/dev.rs
index def545ec71b..5c7adfdaf93 100644
--- 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};
diff --git a/actix-web/src/web.rs b/actix-web/src/web.rs
index 4858600af1b..f5845d7f64c 100644
--- 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.
diff --git a/awc/Cargo.toml b/awc/Cargo.toml
index c8e1cbc60af..40d9d34b668 100644
--- a/awc/Cargo.toml
+++ b/awc/Cargo.toml
@@ -60,7 +60,7 @@ dangerous-h2c = []
 [dependencies]
 actix-codec = "0.5"
 actix-service = "2.0.0"
-actix-http = { version = "3.0.0-rc.4", features = ["http2", "ws"] }
+actix-http = { version = "3.0.0", features = ["http2", "ws"] }
 actix-rt = { version = "2.1", default-features = false }
 actix-tls = { version = "3", features = ["connect", "uri"] }
 actix-utils = "3.0.0"
@@ -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.4", 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.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"