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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.311 ·

Error output from a command runner is now kept

One of Claude Code's command runners now keeps a command's error output instead of dropping it

Under the hood Internal Changes
JSON All of v2.1.311
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ShellArea: what it touches
Internal ChangesKind: in v2.1.311,
Internal ChangesSection of the release
What

One of the command runners inside Claude Code now keeps a command's error output, called stderr, as well as its normal output. Before, the error output was thrown away. If the command cannot start at all, the error output is empty.

Why

Error messages from commands run this way are no longer lost, which can make problems easier to understand.

See this entry in the whole of v2.1.311 →

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