8.11.0

Features

• WebSocket.prototype.addEventListener() now supports an event listener
  specified as an object with a handleEvent() method. (9ab743a).

Bug fixes

• WebSocket.prototype.addEventListener() now adds an event listener only if it
  is not already in the list of the event listeners for the specified event type
  (1cec17d).

8.10.0

Features

• Added an export for package.json (211d5d3).

8.9.0

Features

• Added the ability to connect to Windows named pipes (#2079).

8.8.1

Bug fixes

• The Authorization and Cookie headers are no longer sent if the original
  request for the opening handshake is sent to an IPC server and the client is
  redirected to another IPC server (bc8bd34).

7.5.9

Bug fixes

• Backported bc8bd34 to the 7.x release line (0435e6e).

8.8.0

Features

• Added the WS_NO_BUFFER_UTIL and WS_NO_UTF_8_VALIDATE environment
  variables (becf237).

8.7.0

Features

• Added the ability to inspect the invalid handshake requests and respond to
  them with a custom HTTP response. (6e5a5ce).

Bug fixes

• The handshake is now aborted if the Upgrade header field value in the HTTP
  response is not a case-insensitive match for the value "websocket" (0fdcc0a).
• The Authorization and Cookie headers are no longer sent when following an
  insecure redirect (wss: to ws:) to the same host (d68ba9e).

7.5.8

Bug fixes

• Backported 0fdcc0a to the 7.x release line (2758ed3).
• Backported d68ba9e to the 7.x release line (dc1781b).

8.6.0

Features

• Added the ability to remove confidential headers on a per-redirect basis (#2030).

8.5.0

Features

• Added the ability to use a custom WebSocket class on the server (#2007).

Bug fixes

• When following redirects, the Authorization and Cookie headers are no
  longer sent if the redirect host is different from the original host (#2013).