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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v1.0.54

Dynamic OAuth Callback Port Configuration

  • Added environment variable support for OAuth callbacks: You can now set MCP_OAUTH_CALLBACK_PORT to specify a custom OAuth callback port
  • Improved port selection for Windows: OAuth callback port range now adapts based on platform (Windows: 39152-49151, others: 49152-65535)
  • Example usage:
  export MCP_OAUTH_CALLBACK_PORT=45000
  claude-code

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v1.0.54 →