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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.273 ·

Headless plugin/MCP startup: first-command and first-turn mount joins now actually wait, instead of being no-ops

Headless startup now actually waits for plugin/MCP mounts before the first command and first turn

You'll notice Bug Fixes
JSON All of v2.1.273
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2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Bug FixesKind: in v2.1.273,
Bug FixesSection of the release
What

Two points in headless session startup, firstCommandMountJoin and turnMountJoin, previously did nothing. They now, when a 'projects mount' is still pending, actually wait for it to finish via joinProjectsMountBeforeFirstCommand, bounded by timeout settings (PROJECTS_MOUNT_FIRST_COMMAND_WAIT_MS and a related floor value). turnMountJoin additionally waits for any pending 'grants' before letting the first turn proceed.

Why

This should prevent headless sessions from running commands or turns before required plugin/MCP project mounts and permission grants are actually ready, avoiding race conditions where a headless session acts before its environment is fully set up.

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