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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.

All of v2.0.45 Home All releases olderv2.0.44 v2.0.46newer
Claude Code v2.0.45

Experimental Features Flag Check

What: New internal function to check if experimental beta features should be enabled based on deployment environment

Details:

  • Experimental features are automatically enabled for firstParty and foundry deployments
  • Can be disabled with CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=true environment variable
  • Evidence: mq4() at line 86382

See this entry in the whole of v2.0.45 →