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AgentsCoding agentsAnthropic 1 Jun 2026 aifirst-review

Claude Code 2.1.159 review: quiet releases while version gaps compound

The brief

2.1.158-2.1.159 introduce no breaking changes, but the review warns that pinned deployments now trail 13 releases, accumulating unpatched fixes.

Key points

  1. Floating 1M-context model aliases are flagged as an upgrade hazard.
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