release aidev SIG 3/5

Claude Code 2.1.191: /rewind past /clear, ~37% less CPU while streaming

/rewind can now resume a conversation from before /clear was run, and streaming CPU usage drops roughly 37% by coalescing text updates to 100ms. Also fixes hooks with comma-separated matchers silently never firing, and background agents resurrecting after being stopped.

PUBLISHED2026-06-24
OBSERVED2026-08-11
AGE1mo
SOURCES1
  • /rewind supports resuming a conversation from before /clear
  • Reduced CPU usage during streaming responses by ~37% (text updates coalesced to 100ms)
  • Reduced long-session memory growth from the terminal output cache
  • Fix: hooks with comma-separated matchers (e.g. "Bash,PowerShell") silently never firing
  • Fix: background agents resurrecting after being stopped — stopping from the tasks panel is now permanent
  • Fix: scroll position jumping to the bottom while reading earlier output mid-stream
  • Fix: /permissions Recently-denied tab discarding an approval on close
  • Fix: claude agents sending builtin slash commands like /usage to background sessions as prompt text
  • Fix: managed settings — forceRemoteSettingsRefresh now takes effect via MDM or file policy; fetch sends Cache-Control: no-cache
  • Fix: /voice generic "not available" message when disabled by org policy; /login URL truncation in Windows Terminal; Cmd+click on links in Ghostty over ssh/tmux
  • Improved: sandbox network permission dialog remembers allowed hosts for the session instead of re-prompting per connection
  • Improved: MCP capability discovery (tools/list, prompts/list, resources/list) retries transient network errors; OAuth discovery/token requests retry once, headless environments skip the browser popup; HTTP 404s show the URL and point at your MCP config
featurefix

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