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Beta Releases

The beta releases of Charles introduce new functionality for testing. Beta releases will generally be announced and documented on my blog.


The latest beta version of Charles is . Please check that this is newer than the latest release version (4.1.4) before downloading.

Notes for v4.1.4

This beta includes the following bug fixes and improvements:

  • Support raw IPv6 addresses in [] format
  • Fix rare hung-connection fault
  • Fix fault showing detail of multipart request files
  • Fix SSL connection failure when the server failed the handshake by closing the connection
  • Mirror tool: support partial byte range responses
  • macOS: Fix popup menus disappearing
  • WebSocket support extended to off-spec clients that upgrade to WebSockets on an existing HTTP connection

See the version history for details of previous releases.

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