Sourced from tungstenite's changelog.

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.

• 6e63b17 Update changelog
• f2ed7aa Merge pull request #365 from snapview/dependabot/cargo/webpki-roots-0.24
• 8d8f0da Merge pull request #362 from alexheretic/config-asserts
• dac07ea Merge pull request #361 from alexheretic/docs++
• 40cd43c Update webpki-roots requirement from 0.23 to 0.24
• 8f73cf0 update changelog
• 9567cc7 Add panics docs
• 7869f11 Add assert panics for WebSocketConfig
• 2345e28 Clarify WebSocketConfig docs
• 57d9e23 Merge pull request #360 from doylemark/master
• Additional commits viewable in compare view

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