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Sweep 08 Oct 2026 · 18:53Z Build v2.1.295 516 read Stable v2.1.286 Latest v2.1.295 Next v2.1.295 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.290 ·

Sandbox setting changes made during startup are no longer lost

Sandbox setting changes that arrive while the sandbox is starting are now applied afterwards, and awsPairs accepts a single entry

You'll notice Bug Fixes
JSON All of v2.1.290
You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SandboxArea: what it touches
Bug FixesKind: in v2.1.290,
Bug FixesSection of the release
What

The sandbox is the restricted environment Claude Code can run commands in. If its settings changed while the sandbox was still starting up, that change used to be lost. Claude Code now applies it once startup finishes, and stops the starting values from being loaded again over it once the sandbox is running.

The awsPairs sandbox setting now accepts a single entry as well as a list of entries.

Why

A settings change made at the wrong moment no longer silently disappears, so the sandbox runs with the configuration you set.

See this entry in the whole of v2.1.290 →

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