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Claude Opus 5.5 and independent Anthropic model discovery

Highlights

  • Use Claude Opus 5.5 directly through Anthropic, with explicit API-key and Claude-login routes in the model picker
  • API-key and OAuth model catalogs refresh independently, so one account or authentication method cannot hide models available on the other
  • Update Claude OAuth client compatibility to Claude Code 2.1.280 for the latest model release

Improvements

  • Support Opus 5.5 mandatory adaptive thinking, progress summaries, and documented conversation-bound thinking controls
  • Keep the last usable catalog during refresh failures and separate cached API-key catalogs by credential fingerprint
  • Show distinct missing API key and missing Claude login labels rather than hiding the direct API route
  • Add Opus 5.5 context, output-limit, reasoning-effort and pricing metadata without changing saved model selections

Fixes

  • API-key long-context availability no longer depends on Claude subscription extra-usage settings
  • Server replacement-model recommendations preserve decimal versions such as Opus 4.8 and Opus 5.5
  • Share the bundled Anthropic model list between provider layers to prevent discovery fallback drift

Full changelog: https://github.com/1jehuang/jcode/compare/v0.86.0...v0.87.0

Platform availability

  • Linux x86_64: available
  • Linux aarch64: available
  • macOS Apple Silicon: available
  • macOS Intel: available
  • Windows x86_64: available
  • Windows ARM64: available
  • FreeBSD x86_64: available
Source: README.md, updated 2026-09-22