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Sweep 23 Oct 2026 · 21:48Z Build v2.1.310 529 read Stable v2.1.308 Latest v2.1.310 Next v2.1.310 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.310 ·

Claude Code now reads its command-line options earlier during startup

Claude Code now sets up a reader for its command-line options early, before the rest of startup runs

Under the hood Internal Changes
JSON All of v2.1.310
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.310,
Internal ChangesSection of the release

Unclear It is not clear what this earlier reading of command-line options changes for someone running Claude Code.

What

When Claude Code starts, it now sets up a reader for the command-line arguments you typed (the words and flags after claude, such as options that change how it runs) before the rest of startup happens.

Why

This may change how flags are read or recorded at startup. Nothing here changes which flags exist or what they do.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear what this earlier reading of command-line options changes for someone running Claude Code.

See this entry in the whole of v2.1.310 →

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