Claude Code 2.1.280
UpdateVerifiedAdded Sep 22, 2026
What's changed Added Claude Opus 5.5 ( claude-opus-5-5 ), now the default Opus model , 1M context, $4/$20 per Mtok with $0.20/Mtok cache reads Added mouse support to more lists in fullscreen mode: the wheel scrolls the /skills list, and a skill's state options in /plugin can be clicked Added CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH to change the...
Topics: LLMs, MCP, Security, Pricing, Observability
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More Claude Code releases
Every Claude Code release| Date | Release | Type |
|---|---|---|
| Sep 23 | Claude Code 2.1.281unverified Update | Update |
| Sep 19 | Claude Code 2.1.278 Update | Update |
| Sep 18 | Claude Code 2.1.277 Update | Update |
| Sep 18 | Claude Code 2.1.276 Update | Update |
| Sep 17 | Claude Code 2.1.275 Update | Update |
| Sep 17 | Claude Code 2.1.274 Update | Update |
| Sep 15 | Claude Code 2.1.273 Update | Update |
| Sep 15 | Claude Code 2.1.272 Update | Update |
