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Fix2.1.204

Fixed hook events not streaming during SessionStart hooks in headless sessions

Corrected an issue where hook events failed to stream during SessionStart hooks in headless sessions, preventing remote workers from being incorrectly idle-reaped while processing hooks.

  • Fixed hook events not streaming during SessionStart hooks in headless sessions, which could cause remote workers to be idle-reaped mid-hook
hookssessionsheadlessstabilityremote-workers

Source: original entry ↗

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Fix2.1.294

Fixed prompt and agent hooks handling for instruction-based blocking

Fixed a bug where prompt and agent hooks written as blocking instructions were not working correctly. Improved evaluation of Stop and SubagentStop hooks so Claude is less likely to stop early when hooks are written as conditional instructions.

hooksprompt-engineeringagentsfix
Announcement2.1.293

Claude Code 2.1.293

Released version 2.1.293 with Claude Haiku 5.5 as the default Haiku model featuring 1M context window, expanded agent functionality with agentType and isDeferred fields, and numerous bug fixes across context management, MCP connections, vim mode, permissions, and cloud sessions.

releasemodelsapiagentbugfixes
Announcement2.1.292

Claude Code 2.1.292 Release

Claude Code 2.1.292 includes new features like marketplace source support for plugin installation, effort parameters for agent tools, and prompt caching for mods. This release also addresses numerous security fixes including permission bypass issues, file access restrictions, and cache tampering vulnerabilities, plus improvements to session handling, auto mode restoration, and various UI/UX fixes.

securityfeaturesfixesimprovementsstability
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