0.24.0

Raised MSRV to 1.63 to match tokio-tungstenite.
Connecting to WSS URL without TLS features specified results in a better error.
Handshake will now flush after completion to be safe (works better with buffered streams).

0.23.0

Disable default features for rustls giving the user more flexibility.

0.22.0

Make url optional.
Add a builder for convenient headers and subprotocols construction.
Update rustls dependency.

0.21.0

Fix read-predominant auto pong responses not flushing when hitting WouldBlock errors.
Improve FrameHeader::format write correctness.
Update rustls to 0.22.
Update webpki-roots to 0.26.
Update rustls-native-certs to 0.7.
Update http to 1.0.0.

0.20.1

Fixes CVE-2023-43669.

0.20.0

Remove many implicit flushing behaviours. In general reading and writing messages will no longer flush until calling flush. An exception is automatic responses (e.g. pongs) which will continue to be written and flushed when reading and writing. This allows writing a batch of messages and flushing once, improving performance.
Add WebSocket::read, write, send, flush. Deprecate read_message, write_message, write_pending.
Add FrameSocket::read, write, send, flush. Remove read_frame, write_frame, write_pending. Note: Previous use of write_frame may be replaced with send.
Add WebSocketContext::read, write, flush. Remove read_message, write_message, write_pending. Note: Previous use of write_message may be replaced with write + flush.
Remove send_queue, replaced with using the frame write buffer to achieve similar results.
- Add WebSocketConfig::max_write_buffer_size. Deprecate max_send_queue.
- Add Error::WriteBufferFull. Remove Error::SendQueueFull. Note: WriteBufferFull returns the message that could not be written as a Message::Frame.
Add ability to buffer multiple writes before writing to the underlying stream, controlled by WebSocketConfig::write_buffer_size (default 128 KiB). Improves batch message write performance.
Panic on receiving invalid WebSocketConfig.

0.19.0

Update TLS dependencies.
Exchanging base64 for data-encoding.

0.18.0

Make handshake dependencies optional with a new handshake feature (now a default one!).
Return HTTP error responses (their HTTP body) upon non 101 status codes.

0.17.3

Respect the case-sentitivity of the "Origin" header to keep compatibility with the older servers that use case-sensitive comparison.

0.17.2

Fix panic when invalid manually constructed http::Request is passed to tungstenite.
Downgrade the MSRV to 1.56 due to some other crates that rely on us not being quite ready for 1.58.

0.17.1

Specify the minimum required Rust version.

0.17.0

Update of dependencies (primarily sha1).
Add support of the fragmented messages (allow the user to send the frames without composing the full message).
Overhaul of the client's request generation process. Now the users are able to pass the constructed http::Request "as is" to tungstenite-rs, letting the library to check the correctness of the request and specifying their own headers (including its own key if necessary). No changes for those ones who used the client in a normal way by connecting using a URL/URI (most common use-case).

0.16.0

Update of dependencies (primarily rustls, webpki-roots, rustls-native-certs).
When the close frame is received, the reply that is automatically sent to the initiator has the same code (so we just echo the frame back). Previously a new close frame was created (i.e. the close code / reason was always the same regardless of what code / reason specified by the initiator). Now it’s more symmetrical and arguably more intuitive behavior (see #246 for more context).
The internal ReadBuffer implementation uses heap instead of stack to store the buffer. This should solve issues with possible stack overflows in some scenarios (see #241 for more context).

0.15.0

Allow selecting the method of loading root certificates if rustls is used as TLS implementation.
- Two new feature flags rustls-tls-native-roots and rustls-tls-webpki-roots have been added that activate the respective method to load certificates.
- The rustls-tls flag was removed to raise awareness of this change. Otherwise, compilation would have continue to work and potential errors (due to different or missing certificates) only occurred at runtime.
- The new feature flags are additive. If both are enabled, both methods will be used to add certificates to the TLS configuration.
Allow specifying a connector (for more fine-grained configuration of the TLS).

0.14.0

Use rustls-native-certs instead of webpki-root when rustls-tls feature is enabled.
Don't use native-tls as a default feature (see #202 for more details).
New fast and safe implementation of the reading buffer (replacement for the input_buffer).
Remove some errors from the Error enum that can't be triggered anymore with the new buffer implementation.

0.13.0

Add CapacityError, UrlError, and ProtocolError types to represent the different types of capacity, URL, and protocol errors respectively.
Modify variants Error::Capacity, Error::Url, and Error::Protocol to hold the above errors types instead of string error messages.
Add handshake::derive_accept_key to facilitate external handshakes.
Add support for rustls as TLS backend. The previous tls feature flag is now removed in favor of native-tls and rustls-tls, which allows to pick the TLS backend. The error API surface had to be changed to support the new error types coming from rustls related crates.

0.12.0

Add facilities to allow clients to follow HTTP 3XX redirects.
Allow accepting unmasked clients on the server side to be compatible with some legacy / invalid clients.
Update of dependencies and documentation fixes.

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