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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.227 ·

Teammate pane creation serialised under tmux and iTerm2

Spawning several teammates at once no longer races when splitting tmux or iTerm2 panes.

You'll notice Bug Fixes
JSON All of v2.1.227
You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
TeammatesArea: what it touches
Bug FixesKind: in v2.1.227,
Bug FixesSection of the release
What

Spawning several teammates at once no longer races when splitting terminal panes. Both the tmux and iTerm2 backends now take a lock before creating a pane and release it in a finally block.

Details
  • Only applies when running inside tmux or iTerm2; other terminals are unaffected.
Evidence

paneCreationLock

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.227 →

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