6.1.2

Bug fixes

• Restored compatibility with Node.js < 6.13.0 (26436e0).

6.1.1

Bug fixes

• Queued messages to send are now discarded if the permessage-deflate is enabled
  and the socket closes prematurely (#1464, #1471).

6.1.0

Features

• The WebSocket server now emits a 'close' event when the server
  closes (#1453).

6.0.0

Breaking changes

• Dropped support for Node.js 4 (d73885c).
• Added a shim that throws an error when used if the package is bundled for the
  browser (#1345).
• Added a maxPayload option on the client. Defaults to 100 MiB (#1402).
• Dropped support for the memLevel and level options. Use
  zlibDeflateOptions instead. (80e2002).

5.2.2

Bug fixes

• Fixed a use after invalidation bug introduced in 6046a28 (8aba871).

5.2.1

Bug fixes

• Fixed a bug that could prevent buffered data from being processed under
  certain circumstances (6046a28).

5.2.0

Features

• Added ability to specify custom headers when rejecting the handshake (#1379).

5.1.1

Bug fixes

• Fixed a regression introduced in 9e152f9 (#1347).

5.1.0

Features

• The address argument of the WebSocket constructor can now be a URL
  instance (#1329).
• The options argument of the WebSocket constructor now accepts any TLS
  option that is also accepted by https.request() (#1332).

5.0.0

Breaking changes

• Dropped support for Node.js < 4.5.0 (#1313).
• The connection is no longer closed if the server does not agree to any of
  the client's requested subprotocols (#1312).
• net.Socket errors are no longer re-emitted (a4050db).

Features

• Read backpressure is now properly handled when permessage-deflate is enabled
  (#1302).