Claude Code v2.1.299
Claude Code v2.1.299 was released on .
Summary
Claude Code 2.1.299 brings smarter memory management with idle compaction, so long conversations stay efficient without reprocessing, and gives you finer control over how Claude handles file references and media in your workspace. We've also expanded what custom integrations c...
Release Context
- This was the 241st Claude Code release of 2026 tracked by Havoptic.
- It shipped 4 days after Claude Code v2.1.296 (October 9, 2026).
- Claude Code: ships every 0.9 days — 25 releases in the last month.
Why it matters: Longer conversations use cache smarter now.
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Antigravity CLI v1.3.5 (October 14, 2026)
- Gemini CLI v0.64.0 (October 13, 2026)
- GitHub Copilot CLI v1.0.97 (October 13, 2026)
- Antigravity CLI v1.3.4 (October 13, 2026)
- Cursor: Origin App Marketplace (October 13, 2026)
Compare Claude Code
Release Notes
- Added CLAUDECODEDISABLEFILEMENTIONS environment variable: Claude gets the paths of @ file mentions to read with its file tools, not the files' contents
- Added idle compaction in the terminal: a 200K+ token conversation left idle for about 54 minutes is compacted before its one-hour prompt cache expires, so your next message doesn't reprocess it all
- Added CLAUDECODEIDLECOMPACTMINTOKENS to change idle compaction's 200K-token minimum; "idleCompaction": false in settings.json turns it off. Both need v2.1.290 or later
- Added $.prompt.media so a prompt.submit hook of a mod installed by managed settings can read the bytes of an image or document attached to the prompt
- Added $.session.identity() for mods installed by managed settings: how the session is signed in, and its organi
Other Recent Claude Code Releases
- v2.1.295 (October 8, 2026)
- v2.1.294 (October 8, 2026)
- v2.1.293 (October 7, 2026)
- v2.1.292 (October 6, 2026)
- v2.1.291 (October 6, 2026)
All Claude Code releases · All AI coding tool releases on Havoptic