Replace HTTP/2.0 by HTTP/2 😅

The protocol is named HTTP/2.

src/client.rs

@@ -1,18 +1,18 @@
-//! Client implementation of the HTTP/2.0 protocol.
+//! Client implementation of the HTTP/2 protocol.
 //!
 //! # Getting started
 //!
-//! Running an HTTP/2.0 client requires the caller to establish the underlying
+//! Running an HTTP/2 client requires the caller to establish the underlying
 //! connection as well as get the connection to a state that is ready to begin
-//! the HTTP/2.0 handshake. See [here](../index.html#handshake) for more
+//! the HTTP/2 handshake. See [here](../index.html#handshake) for more
 //! details.
 //!
 //! This could be as basic as using Tokio's [`TcpStream`] to connect to a remote
 //! host, but usually it means using either ALPN or HTTP/1.1 protocol upgrades.
 //!
 //! Once a connection is obtained, it is passed to [`handshake`], which will
-//! begin the [HTTP/2.0 handshake]. This returns a future that completes once
-//! the handshake process is performed and HTTP/2.0 streams may be initialized.
+//! begin the [HTTP/2 handshake]. This returns a future that completes once
+//! the handshake process is performed and HTTP/2 streams may be initialized.
 //!
 //! [`handshake`] uses default configuration values. There are a number of
 //! settings that can be changed by using [`Builder`] instead.
@@ -26,16 +26,16 @@
 //! # Making requests
 //!
 //! Requests are made using the [`SendRequest`] handle provided by the handshake
-//! future. Once a request is submitted, an HTTP/2.0 stream is initialized and
+//! future. Once a request is submitted, an HTTP/2 stream is initialized and
 //! the request is sent to the server.
 //!
 //! A request body and request trailers are sent using [`SendRequest`] and the
 //! server's response is returned once the [`ResponseFuture`] future completes.
 //! Both the [`SendStream`] and [`ResponseFuture`] instances are returned by
-//! [`SendRequest::send_request`] and are tied to the HTTP/2.0 stream
+//! [`SendRequest::send_request`] and are tied to the HTTP/2 stream
 //! initialized by the sent request.
 //!
-//! The [`SendRequest::poll_ready`] function returns `Ready` when a new HTTP/2.0
+//! The [`SendRequest::poll_ready`] function returns `Ready` when a new HTTP/2
 //! stream can be created, i.e. as long as the current number of active streams
 //! is below [`MAX_CONCURRENT_STREAMS`]. If a new stream cannot be created, the
 //! caller will be notified once an existing stream closes, freeing capacity for
@@ -131,7 +131,7 @@
 //! [`SendRequest`]: struct.SendRequest.html
 //! [`ResponseFuture`]: struct.ResponseFuture.html
 //! [`SendRequest::poll_ready`]: struct.SendRequest.html#method.poll_ready
-//! [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+//! [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
 //! [`Builder`]: struct.Builder.html
 //! [`Error`]: ../struct.Error.html
 
@@ -151,7 +151,7 @@ use std::usize;
 use tokio::io::{AsyncRead, AsyncWrite, AsyncWriteExt};
 use tracing::Instrument;
 
-/// Initializes new HTTP/2.0 streams on a connection by sending a request.
+/// Initializes new HTTP/2 streams on a connection by sending a request.
 ///
 /// This type does no work itself. Instead, it is a handle to the inner
 /// connection state held by [`Connection`]. If the associated connection
@@ -161,7 +161,7 @@ use tracing::Instrument;
 /// / threads than their associated [`Connection`] instance. Internally, there
 /// is a buffer used to stage requests before they get written to the
 /// connection. There is no guarantee that requests get written to the
-/// connection in FIFO order as HTTP/2.0 prioritization logic can play a role.
+/// connection in FIFO order as HTTP/2 prioritization logic can play a role.
 ///
 /// [`SendRequest`] implements [`Clone`], enabling the creation of many
 /// instances that are backed by a single connection.
@@ -184,10 +184,10 @@ pub struct ReadySendRequest<B: Buf> {
     inner: Option<SendRequest<B>>,
 }
 
-/// Manages all state associated with an HTTP/2.0 client connection.
+/// Manages all state associated with an HTTP/2 client connection.
 ///
 /// A `Connection` is backed by an I/O resource (usually a TCP socket) and
-/// implements the HTTP/2.0 client logic for that connection. It is responsible
+/// implements the HTTP/2 client logic for that connection. It is responsible
 /// for driving the internal state forward, performing the work requested of the
 /// associated handles ([`SendRequest`], [`ResponseFuture`], [`SendStream`],
 /// [`RecvStream`]).
@@ -220,7 +220,7 @@ pub struct ReadySendRequest<B: Buf> {
 ///     // Submit the connection handle to an executor.
 ///     tokio::spawn(async { connection.await.expect("connection failed"); });
 ///
-///     // Now, use `send_request` to initialize HTTP/2.0 streams.
+///     // Now, use `send_request` to initialize HTTP/2 streams.
 ///     // ...
 /// # Ok(())
 /// # }
@@ -274,7 +274,7 @@ pub struct PushPromises {
 /// Methods can be chained in order to set the configuration values.
 ///
 /// The client is constructed by calling [`handshake`] and passing the I/O
-/// handle that will back the HTTP/2.0 server.
+/// handle that will back the HTTP/2 server.
 ///
 /// New instances of `Builder` are obtained via [`Builder::new`].
 ///
@@ -294,7 +294,7 @@ pub struct PushPromises {
 /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
 ///     -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
 /// # {
-/// // `client_fut` is a future representing the completion of the HTTP/2.0
+/// // `client_fut` is a future representing the completion of the HTTP/2
 /// // handshake.
 /// let client_fut = Builder::new()
 ///     .initial_window_size(1_000_000)
@@ -339,7 +339,7 @@ impl<B> SendRequest<B>
 where
     B: Buf + 'static,
 {
-    /// Returns `Ready` when the connection can initialize a new HTTP/2.0
+    /// Returns `Ready` when the connection can initialize a new HTTP/2
     /// stream.
     ///
     /// This function must return `Ready` before `send_request` is called. When
@@ -387,16 +387,16 @@ where
         ReadySendRequest { inner: Some(self) }
     }
 
-    /// Sends a HTTP/2.0 request to the server.
+    /// Sends a HTTP/2 request to the server.
     ///
-    /// `send_request` initializes a new HTTP/2.0 stream on the associated
+    /// `send_request` initializes a new HTTP/2 stream on the associated
     /// connection, then sends the given request using this new stream. Only the
     /// request head is sent.
     ///
     /// On success, a [`ResponseFuture`] instance and [`SendStream`] instance
     /// are returned. The [`ResponseFuture`] instance is used to get the
     /// server's response and the [`SendStream`] instance is used to send a
-    /// request body or trailers to the server over the same HTTP/2.0 stream.
+    /// request body or trailers to the server over the same HTTP/2 stream.
     ///
     /// To send a request body or trailers, set `end_of_stream` to `false`.
     /// Then, use the returned [`SendStream`] instance to stream request body
@@ -601,7 +601,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .initial_window_size(1_000_000)
@@ -643,7 +643,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .initial_window_size(1_000_000)
@@ -678,7 +678,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .initial_connection_window_size(1_000_000)
@@ -693,7 +693,7 @@ impl Builder {
         self
     }
 
-    /// Indicates the size (in octets) of the largest HTTP/2.0 frame payload that the
+    /// Indicates the size (in octets) of the largest HTTP/2 frame payload that the
     /// configured client is able to accept.
     ///
     /// The sender may send data frames that are **smaller** than this value,
@@ -712,7 +712,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .max_frame_size(1_000_000)
@@ -752,7 +752,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .max_header_list_size(16 * 1024)
@@ -787,7 +787,7 @@ impl Builder {
     /// a protocol level error. Instead, the `h2` library will immediately reset
     /// the stream.
     ///
-    /// See [Section 5.1.2] in the HTTP/2.0 spec for more details.
+    /// See [Section 5.1.2] in the HTTP/2 spec for more details.
     ///
     /// [Section 5.1.2]: https://http2.github.io/http2-spec/#rfc.section.5.1.2
     ///
@@ -801,7 +801,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .max_concurrent_streams(1000)
@@ -828,7 +828,7 @@ impl Builder {
     /// Sending streams past the limit returned by the peer will be treated
     /// as a stream error of type PROTOCOL_ERROR or REFUSED_STREAM.
     ///
-    /// See [Section 5.1.2] in the HTTP/2.0 spec for more details.
+    /// See [Section 5.1.2] in the HTTP/2 spec for more details.
     ///
     /// [Section 5.1.2]: https://http2.github.io/http2-spec/#rfc.section.5.1.2
     ///
@@ -842,7 +842,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .initial_max_send_streams(1000)
@@ -859,7 +859,7 @@ impl Builder {
 
     /// Sets the maximum number of concurrent locally reset streams.
     ///
-    /// When a stream is explicitly reset, the HTTP/2.0 specification requires
+    /// When a stream is explicitly reset, the HTTP/2 specification requires
     /// that any further frames received for that stream must be ignored for
     /// "some time".
     ///
@@ -887,7 +887,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .max_concurrent_reset_streams(1000)
@@ -904,7 +904,7 @@ impl Builder {
 
     /// Sets the duration to remember locally reset streams.
     ///
-    /// When a stream is explicitly reset, the HTTP/2.0 specification requires
+    /// When a stream is explicitly reset, the HTTP/2 specification requires
     /// that any further frames received for that stream must be ignored for
     /// "some time".
     ///
@@ -933,7 +933,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .reset_stream_duration(Duration::from_secs(10))
@@ -955,7 +955,7 @@ impl Builder {
     /// false in the initial SETTINGS handshake guarantees that the remote server
     /// will never send a push promise.
     ///
-    /// This setting can be changed during the life of a single HTTP/2.0
+    /// This setting can be changed during the life of a single HTTP/2
     /// connection by sending another settings frame updating the value.
     ///
     /// Default value: `true`.
@@ -971,7 +971,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .enable_push(false)
@@ -997,22 +997,22 @@ impl Builder {
         self
     }
 
-    /// Creates a new configured HTTP/2.0 client backed by `io`.
+    /// Creates a new configured HTTP/2 client backed by `io`.
     ///
     /// It is expected that `io` already be in an appropriate state to commence
-    /// the [HTTP/2.0 handshake]. The handshake is completed once both the connection
+    /// the [HTTP/2 handshake]. The handshake is completed once both the connection
     /// preface and the initial settings frame is sent by the client.
     ///
     /// The handshake future does not wait for the initial settings frame from the
     /// server.
     ///
     /// Returns a future which resolves to the [`Connection`] / [`SendRequest`]
-    /// tuple once the HTTP/2.0 handshake has been completed.
+    /// tuple once the HTTP/2 handshake has been completed.
     ///
     /// This function also allows the caller to configure the send payload data
     /// type. See [Outbound data type] for more details.
     ///
-    /// [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+    /// [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
     /// [`Connection`]: struct.Connection.html
     /// [`SendRequest`]: struct.SendRequest.html
     /// [Outbound data type]: ../index.html#outbound-data-type.
@@ -1029,7 +1029,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     ///     -> Result<((SendRequest<Bytes>, Connection<T, Bytes>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .handshake(my_io);
@@ -1049,7 +1049,7 @@ impl Builder {
     /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Result<((SendRequest<&'static [u8]>, Connection<T, &'static [u8]>)), h2::Error>
     /// # {
-    /// // `client_fut` is a future representing the completion of the HTTP/2.0
+    /// // `client_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let client_fut = Builder::new()
     ///     .handshake::<_, &'static [u8]>(my_io);
@@ -1076,19 +1076,19 @@ impl Default for Builder {
     }
 }
 
-/// Creates a new configured HTTP/2.0 client with default configuration
+/// Creates a new configured HTTP/2 client with default configuration
 /// values backed by `io`.
 ///
 /// It is expected that `io` already be in an appropriate state to commence
-/// the [HTTP/2.0 handshake]. See [Handshake] for more details.
+/// the [HTTP/2 handshake]. See [Handshake] for more details.
 ///
 /// Returns a future which resolves to the [`Connection`] / [`SendRequest`]
-/// tuple once the HTTP/2.0 handshake has been completed. The returned
+/// tuple once the HTTP/2 handshake has been completed. The returned
 /// [`Connection`] instance will be using default configuration values. Use
 /// [`Builder`] to customize the configuration values used by a [`Connection`]
 /// instance.
 ///
-/// [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+/// [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
 /// [Handshake]: ../index.html#handshake
 /// [`Connection`]: struct.Connection.html
 /// [`SendRequest`]: struct.SendRequest.html
@@ -1103,7 +1103,7 @@ impl Default for Builder {
 /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T) -> Result<(), h2::Error>
 /// # {
 /// let (send_request, connection) = client::handshake(my_io).await?;
-/// // The HTTP/2.0 handshake has completed, now start polling
+/// // The HTTP/2 handshake has completed, now start polling
 /// // `connection` and use `send_request` to send requests to the
 /// // server.
 /// # Ok(())
@@ -1455,7 +1455,7 @@ impl Peer {
                     return Err(UserError::MissingUriSchemeAndAuthority.into());
                 } else {
                     // This is acceptable as per the above comment. However,
-                    // HTTP/2.0 requires that a scheme is set. Since we are
+                    // HTTP/2 requires that a scheme is set. Since we are
                     // forwarding an HTTP 1.1 request, the scheme is set to
                     // "http".
                     pseudo.set_scheme(uri::Scheme::HTTP);

src/error.rs

@@ -7,7 +7,7 @@ use std::{error, fmt, io};
 
 pub use crate::frame::Reason;
 
-/// Represents HTTP/2.0 operation errors.
+/// Represents HTTP/2 operation errors.
 ///
 /// `Error` covers error cases raised by protocol errors caused by the
 /// peer, I/O (transport) errors, and errors caused by the user of the library.

src/frame/head.rs

@@ -36,7 +36,7 @@ impl Head {
         }
     }
 
-    /// Parse an HTTP/2.0 frame header
+    /// Parse an HTTP/2 frame header
     pub fn parse(header: &[u8]) -> Head {
         let (stream_id, _) = StreamId::parse(&header[5..]);
 

src/frame/reason.rs

@@ -1,6 +1,6 @@
 use std::fmt;
 
-/// HTTP/2.0 error codes.
+/// HTTP/2 error codes.
 ///
 /// Error codes are used in `RST_STREAM` and `GOAWAY` frames to convey the
 /// reasons for the stream or connection error. For example,

src/hpack/header.rs

@@ -5,7 +5,7 @@ use http::header::{HeaderName, HeaderValue};
 use http::{Method, StatusCode};
 use std::fmt;
 
-/// HTTP/2.0 Header
+/// HTTP/2 Header
 #[derive(Debug, Clone, Eq, PartialEq)]
 pub enum Header<T = HeaderName> {
     Field { name: T, value: HeaderValue },

src/lib.rs

@@ -1,6 +1,6 @@
-//! An asynchronous, HTTP/2.0 server and client implementation.
+//! An asynchronous, HTTP/2 server and client implementation.
 //!
-//! This library implements the [HTTP/2.0] specification. The implementation is
+//! This library implements the [HTTP/2] specification. The implementation is
 //! asynchronous, using [futures] as the basis for the API. The implementation
 //! is also decoupled from TCP or TLS details. The user must handle ALPN and
 //! HTTP/1.1 upgrades themselves.
@@ -24,19 +24,19 @@
 //! # Handshake
 //!
 //! Both the client and the server require a connection to already be in a state
-//! ready to start the HTTP/2.0 handshake. This library does not provide
+//! ready to start the HTTP/2 handshake. This library does not provide
 //! facilities to do this.
 //!
-//! There are three ways to reach an appropriate state to start the HTTP/2.0
+//! There are three ways to reach an appropriate state to start the HTTP/2
 //! handshake.
 //!
 //! * Opening an HTTP/1.1 connection and performing an [upgrade].
 //! * Opening a connection with TLS and use ALPN to negotiate the protocol.
 //! * Open a connection with prior knowledge, i.e. both the client and the
 //!   server assume that the connection is immediately ready to start the
-//!   HTTP/2.0 handshake once opened.
+//!   HTTP/2 handshake once opened.
 //!
-//! Once the connection is ready to start the HTTP/2.0 handshake, it can be
+//! Once the connection is ready to start the HTTP/2 handshake, it can be
 //! passed to [`server::handshake`] or [`client::handshake`]. At this point, the
 //! library will start the handshake process, which consists of:
 //!
@@ -48,10 +48,10 @@
 //!
 //! # Flow control
 //!
-//! [Flow control] is a fundamental feature of HTTP/2.0. The `h2` library
+//! [Flow control] is a fundamental feature of HTTP/2. The `h2` library
 //! exposes flow control to the user.
 //!
-//! An HTTP/2.0 client or server may not send unlimited data to the peer. When a
+//! An HTTP/2 client or server may not send unlimited data to the peer. When a
 //! stream is initiated, both the client and the server are provided with an
 //! initial window size for that stream.  A window size is the number of bytes
 //! the endpoint can send to the peer. At any point in time, the peer may
@@ -66,7 +66,7 @@
 //! Managing flow control for outbound data is done through [`SendStream`]. See
 //! the struct level documentation for those two types for more details.
 //!
-//! [HTTP/2.0]: https://http2.github.io/
+//! [HTTP/2]: https://http2.github.io/
 //! [futures]: https://docs.rs/futures/
 //! [`client`]: client/index.html
 //! [`server`]: server/index.html

src/proto/streams/streams.rs

@@ -21,7 +21,7 @@ where
     P: Peer,
 {
     /// Holds most of the connection and stream related state for processing
-    /// HTTP/2.0 frames associated with streams.
+    /// HTTP/2 frames associated with streams.
     inner: Arc<Mutex<Inner>>,
 
     /// This is the queue of frames to be written to the wire. This is split out

src/server.rs

@@ -1,10 +1,10 @@
-//! Server implementation of the HTTP/2.0 protocol.
+//! Server implementation of the HTTP/2 protocol.
 //!
 //! # Getting started
 //!
-//! Running an HTTP/2.0 server requires the caller to manage accepting the
+//! Running an HTTP/2 server requires the caller to manage accepting the
 //! connections as well as getting the connections to a state that is ready to
-//! begin the HTTP/2.0 handshake. See [here](../index.html#handshake) for more
+//! begin the HTTP/2 handshake. See [here](../index.html#handshake) for more
 //! details.
 //!
 //! This could be as basic as using Tokio's [`TcpListener`] to accept
@@ -12,8 +12,8 @@
 //! upgrades.
 //!
 //! Once a connection is obtained, it is passed to [`handshake`],
-//! which will begin the [HTTP/2.0 handshake]. This returns a future that
-//! completes once the handshake process is performed and HTTP/2.0 streams may
+//! which will begin the [HTTP/2 handshake]. This returns a future that
+//! completes once the handshake process is performed and HTTP/2 streams may
 //! be received.
 //!
 //! [`handshake`] uses default configuration values. There are a number of
@@ -21,7 +21,7 @@
 //!
 //! # Inbound streams
 //!
-//! The [`Connection`] instance is used to accept inbound HTTP/2.0 streams. It
+//! The [`Connection`] instance is used to accept inbound HTTP/2 streams. It
 //! does this by implementing [`futures::Stream`]. When a new stream is
 //! received, a call to [`Connection::accept`] will return `(request, response)`.
 //! The `request` handle (of type [`http::Request<RecvStream>`]) contains the
@@ -59,9 +59,9 @@
 //!
 //! # Example
 //!
-//! A basic HTTP/2.0 server example that runs over TCP and assumes [prior
+//! A basic HTTP/2 server example that runs over TCP and assumes [prior
 //! knowledge], i.e. both the client and the server assume that the TCP socket
-//! will use the HTTP/2.0 protocol without prior negotiation.
+//! will use the HTTP/2 protocol without prior negotiation.
 //!
 //! ```no_run
 //! use h2::server;
@@ -77,9 +77,9 @@
 //!         if let Ok((socket, _peer_addr)) = listener.accept().await {
 //!             // Spawn a new task to process each connection.
 //!             tokio::spawn(async {
-//!                 // Start the HTTP/2.0 connection handshake
+//!                 // Start the HTTP/2 connection handshake
 //!                 let mut h2 = server::handshake(socket).await.unwrap();
-//!                 // Accept all inbound HTTP/2.0 streams sent over the
+//!                 // Accept all inbound HTTP/2 streams sent over the
 //!                 // connection.
 //!                 while let Some(request) = h2.accept().await {
 //!                     let (request, mut respond) = request.unwrap();
@@ -104,7 +104,7 @@
 //!
 //! [prior knowledge]: http://httpwg.org/specs/rfc7540.html#known-http
 //! [`handshake`]: fn.handshake.html
-//! [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+//! [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
 //! [`Builder`]: struct.Builder.html
 //! [`Connection`]: struct.Connection.html
 //! [`Connection::poll`]: struct.Connection.html#method.poll
@@ -130,7 +130,7 @@ use std::{convert, fmt, io, mem};
 use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
 use tracing::instrument::{Instrument, Instrumented};
 
-/// In progress HTTP/2.0 connection handshake future.
+/// In progress HTTP/2 connection handshake future.
 ///
 /// This type implements `Future`, yielding a `Connection` instance once the
 /// handshake has completed.
@@ -154,10 +154,10 @@ pub struct Handshake<T, B: Buf = Bytes> {
     span: tracing::Span,
 }
 
-/// Accepts inbound HTTP/2.0 streams on a connection.
+/// Accepts inbound HTTP/2 streams on a connection.
 ///
 /// A `Connection` is backed by an I/O resource (usually a TCP socket) and
-/// implements the HTTP/2.0 server logic for that connection. It is responsible
+/// implements the HTTP/2 server logic for that connection. It is responsible
 /// for receiving inbound streams initiated by the client as well as driving the
 /// internal state forward.
 ///
@@ -202,7 +202,7 @@ pub struct Connection<T, B: Buf> {
 /// Methods can be chained in order to set the configuration values.
 ///
 /// The server is constructed by calling [`handshake`] and passing the I/O
-/// handle that will back the HTTP/2.0 server.
+/// handle that will back the HTTP/2 server.
 ///
 /// New instances of `Builder` are obtained via [`Builder::new`].
 ///
@@ -221,7 +221,7 @@ pub struct Connection<T, B: Buf> {
 /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
 /// # -> Handshake<T>
 /// # {
-/// // `server_fut` is a future representing the completion of the HTTP/2.0
+/// // `server_fut` is a future representing the completion of the HTTP/2
 /// // handshake.
 /// let server_fut = Builder::new()
 ///     .initial_window_size(1_000_000)
@@ -257,7 +257,7 @@ pub struct Builder {
 /// stream.
 ///
 /// If the `SendResponse` instance is dropped without sending a response, then
-/// the HTTP/2.0 stream will be reset.
+/// the HTTP/2 stream will be reset.
 ///
 /// See [module] level docs for more details.
 ///
@@ -276,7 +276,7 @@ pub struct SendResponse<B: Buf> {
 /// It can not be used to initiate push promises.
 ///
 /// If the `SendPushedResponse` instance is dropped without sending a response, then
-/// the HTTP/2.0 stream will be reset.
+/// the HTTP/2 stream will be reset.
 ///
 /// See [module] level docs for more details.
 ///
@@ -318,18 +318,18 @@ pub(crate) struct Peer;
 
 const PREFACE: [u8; 24] = *b"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
 
-/// Creates a new configured HTTP/2.0 server with default configuration
+/// Creates a new configured HTTP/2 server with default configuration
 /// values backed by `io`.
 ///
 /// It is expected that `io` already be in an appropriate state to commence
-/// the [HTTP/2.0 handshake]. See [Handshake] for more details.
+/// the [HTTP/2 handshake]. See [Handshake] for more details.
 ///
 /// Returns a future which resolves to the [`Connection`] instance once the
-/// HTTP/2.0 handshake has been completed. The returned [`Connection`]
+/// HTTP/2 handshake has been completed. The returned [`Connection`]
 /// instance will be using default configuration values. Use [`Builder`] to
 /// customize the configuration values used by a [`Connection`] instance.
 ///
-/// [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+/// [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
 /// [Handshake]: ../index.html#handshake
 /// [`Connection`]: struct.Connection.html
 ///
@@ -343,8 +343,8 @@ const PREFACE: [u8; 24] = *b"PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
 /// # async fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
 /// # {
 /// let connection = server::handshake(my_io).await.unwrap();
-/// // The HTTP/2.0 handshake has completed, now use `connection` to
-/// // accept inbound HTTP/2.0 streams.
+/// // The HTTP/2 handshake has completed, now use `connection` to
+/// // accept inbound HTTP/2 streams.
 /// # }
 /// #
 /// # pub fn main() {}
@@ -603,7 +603,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .initial_window_size(1_000_000)
@@ -642,7 +642,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .initial_window_size(1_000_000)
@@ -676,7 +676,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .initial_connection_window_size(1_000_000)
@@ -691,7 +691,7 @@ impl Builder {
         self
     }
 
-    /// Indicates the size (in octets) of the largest HTTP/2.0 frame payload that the
+    /// Indicates the size (in octets) of the largest HTTP/2 frame payload that the
     /// configured server is able to accept.
     ///
     /// The sender may send data frames that are **smaller** than this value,
@@ -709,7 +709,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .max_frame_size(1_000_000)
@@ -748,7 +748,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .max_header_list_size(16 * 1024)
@@ -783,7 +783,7 @@ impl Builder {
     /// a protocol level error. Instead, the `h2` library will immediately reset
     /// the stream.
     ///
-    /// See [Section 5.1.2] in the HTTP/2.0 spec for more details.
+    /// See [Section 5.1.2] in the HTTP/2 spec for more details.
     ///
     /// [Section 5.1.2]: https://http2.github.io/http2-spec/#rfc.section.5.1.2
     ///
@@ -796,7 +796,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .max_concurrent_streams(1000)
@@ -815,7 +815,7 @@ impl Builder {
     ///
     /// When a stream is explicitly reset by either calling
     /// [`SendResponse::send_reset`] or by dropping a [`SendResponse`] instance
-    /// before completing the stream, the HTTP/2.0 specification requires that
+    /// before completing the stream, the HTTP/2 specification requires that
     /// any further frames received for that stream must be ignored for "some
     /// time".
     ///
@@ -842,7 +842,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .max_concurrent_reset_streams(1000)
@@ -861,7 +861,7 @@ impl Builder {
     ///
     /// When a stream is explicitly reset by either calling
     /// [`SendResponse::send_reset`] or by dropping a [`SendResponse`] instance
-    /// before completing the stream, the HTTP/2.0 specification requires that
+    /// before completing the stream, the HTTP/2 specification requires that
     /// any further frames received for that stream must be ignored for "some
     /// time".
     ///
@@ -889,7 +889,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .reset_stream_duration(Duration::from_secs(10))
@@ -904,18 +904,18 @@ impl Builder {
         self
     }
 
-    /// Creates a new configured HTTP/2.0 server backed by `io`.
+    /// Creates a new configured HTTP/2 server backed by `io`.
     ///
     /// It is expected that `io` already be in an appropriate state to commence
-    /// the [HTTP/2.0 handshake]. See [Handshake] for more details.
+    /// the [HTTP/2 handshake]. See [Handshake] for more details.
     ///
     /// Returns a future which resolves to the [`Connection`] instance once the
-    /// HTTP/2.0 handshake has been completed.
+    /// HTTP/2 handshake has been completed.
     ///
     /// This function also allows the caller to configure the send payload data
     /// type. See [Outbound data type] for more details.
     ///
-    /// [HTTP/2.0 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
+    /// [HTTP/2 handshake]: http://httpwg.org/specs/rfc7540.html#ConnectionHeader
     /// [Handshake]: ../index.html#handshake
     /// [`Connection`]: struct.Connection.html
     /// [Outbound data type]: ../index.html#outbound-data-type.
@@ -931,7 +931,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut = Builder::new()
     ///     .handshake(my_io);
@@ -951,7 +951,7 @@ impl Builder {
     /// # fn doc<T: AsyncRead + AsyncWrite + Unpin>(my_io: T)
     /// # -> Handshake<T, &'static [u8]>
     /// # {
-    /// // `server_fut` is a future representing the completion of the HTTP/2.0
+    /// // `server_fut` is a future representing the completion of the HTTP/2
     /// // handshake.
     /// let server_fut: Handshake<_, &'static [u8]> = Builder::new()
     ///     .handshake(my_io);

src/share.rs

@@ -16,7 +16,7 @@ use std::task::{Context, Poll};
 /// # Overview
 ///
 /// A `SendStream` is provided by [`SendRequest`] and [`SendResponse`] once the
-/// HTTP/2.0 message header has been sent sent. It is used to stream the message
+/// HTTP/2 message header has been sent sent. It is used to stream the message
 /// body and send the message trailers. See method level documentation for more
 /// details.
 ///
@@ -35,7 +35,7 @@ use std::task::{Context, Poll};
 ///
 /// # Flow control
 ///
-/// In HTTP/2.0, data cannot be sent to the remote peer unless there is
+/// In HTTP/2, data cannot be sent to the remote peer unless there is
 /// available window capacity on both the stream and the connection. When a data
 /// frame is sent, both the stream window and the connection window are
 /// decremented. When the stream level window reaches zero, no further data can
@@ -44,7 +44,7 @@ use std::task::{Context, Poll};
 ///
 /// When the remote peer is ready to receive more data, it sends `WINDOW_UPDATE`
 /// frames. These frames increment the windows. See the [specification] for more
-/// details on the principles of HTTP/2.0 flow control.
+/// details on the principles of HTTP/2 flow control.
 ///
 /// The implications for sending data are that the caller **should** ensure that
 /// both the stream and the connection has available window capacity before
@@ -115,7 +115,7 @@ pub struct StreamId(u32);
 /// Receives the body stream and trailers from the remote peer.
 ///
 /// A `RecvStream` is provided by [`client::ResponseFuture`] and
-/// [`server::Connection`] with the received HTTP/2.0 message head (the response
+/// [`server::Connection`] with the received HTTP/2 message head (the response
 /// and request head respectively).
 ///
 /// A `RecvStream` instance is used to receive the streaming message body and
@@ -168,7 +168,7 @@ pub struct RecvStream {
 ///
 /// # Scenarios
 ///
-/// Following is a basic scenario with an HTTP/2.0 connection containing a
+/// Following is a basic scenario with an HTTP/2 connection containing a
 /// single active stream.
 ///
 /// * A new stream is activated. The receive window is initialized to 1024 (the

tests/h2-tests/tests/client_request.rs

@@ -521,7 +521,7 @@ async fn request_with_connection_headers() {
         ("keep-alive", "5"),
         ("proxy-connection", "bar"),
         ("transfer-encoding", "chunked"),
-        ("upgrade", "HTTP/2.0"),
+        ("upgrade", "HTTP/2"),
         ("te", "boom"),
     ];
 

tests/h2-tests/tests/server.rs

@@ -536,7 +536,7 @@ async fn recv_connection_header() {
         client
             .send_frame(req(7, "transfer-encoding", "chunked"))
             .await;
-        client.send_frame(req(9, "upgrade", "HTTP/2.0")).await;
+        client.send_frame(req(9, "upgrade", "HTTP/2")).await;
         client.recv_frame(frames::reset(1).protocol_error()).await;
         client.recv_frame(frames::reset(3).protocol_error()).await;
         client.recv_frame(frames::reset(5).protocol_error()).await;