Claude Code v2.1.300
Claude Code v2.1.300 was released on .
Summary
Claude Code 2.1.300 brings smarter prompt handling with virtual text that won't interfere with your submissions, plus new ways to customize agent views and control advisor tools directly. You can now rewrite workflow agent prompts on the fly and track detailed cache performanc...
Release Context
- This was the 242nd Claude Code release of 2026 tracked by Havoptic.
- It shipped 1 day after Claude Code v2.1.299 (October 14, 2026).
- Claude Code: ships every 1.2 days — 26 releases in the last month.
Why it matters: Agents now show transcripts directly in your view.
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- GitHub Copilot CLI v1.0.98 (October 14, 2026)
- 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)
Compare Claude Code
Release Notes
- Added virtualText to a mod's prompt decorations: text drawn in the prompt box that never enters the draft or the submitted prompt
- Added cachecreation5mtokens and cachecreation1htokens to the OpenTelemetry apirequest event, splitting cache writes by lifetime
- Added $.ui.view({ agentId }) for mods: shows an agent's transcript in the main view when you ask, and $.ui.view({}) goes back
- Added a dir prop on a mod's Text for right-to-left text: on Windows and in VS Code's terminal its rows read in that direction and sit flush right
- Added /advisor on Claude Platform on AWS; no advisor runs until you pick one with /advisor, advisorModel or --advisor, and CLAUDECODEDISABLEADVISORTOOL=1 turns it off
- Added OpenTelemetry GenAI semantic-convention attributes to trace spans, such as genai.provider.name, genai.conversation.id, genai.tool.name and error.type
- Added support for rewriting a workflow agent's prompt and model in the agent.spawn mod hook, which could only refuse workflow agents before
- Added the prompt.change mod hook, raised when the prompt box's text changes without a typed edit: a recalled history entry, a clear, an undo, or a plugin's fill
- Fixed cloud sessions telling Claude that an organi
Other Recent Claude Code Releases
- v2.1.296 (October 9, 2026)
- v2.1.295 (October 8, 2026)
- v2.1.294 (October 8, 2026)
- v2.1.293 (October 7, 2026)
- v2.1.292 (October 6, 2026)
All Claude Code releases · All AI coding tool releases on Havoptic