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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 v2.1.304 ·

A new session mode turns off file checkpointing and local state readers

Under a new condition, file checkpointing, settings-file and plugin sync readers, marketplace fetching and some local storage are turned off

Group of 2 Under the hood Internal Changes
JSON All of v2.1.304
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Diskless SessionsArea: what it touches
Internal ChangesKind: in v2.1.304,
Internal ChangesSection of the release

Unclear It is not clear what puts a session into this mode, or whether an ordinary session can be in it.

What

A new condition, Z(), which looks like a mode that keeps nothing on disk, now switches several things off:

  • File checkpointing: the saved copies of files that let /rewind restore code changes are off when Z() is true, checked before CLAUDE_CODE_DISABLE_FILE_CHECKPOINTING and the fileCheckpointingEnabled setting.
  • Settings files: a config and settings-file reader returns { kind: "absent" }, as if the file did not exist.
  • Plugin sync: the plugins sync reader returns null instead of an empty list.
  • Transcripts: the keepAllLeaves option is off.
  • Credentials: the helper that finds where credentials are stored returns null when the folder is null.
  • Marketplaces: a new error says "Marketplaces can't be fetched in this session, because it can't save them".

Why

In sessions running under this mode, /rewind can't restore code, plugin marketplaces can't be fetched, and settings files read as missing.

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 puts a session into this mode, or whether an ordinary session can be in it.

See this entry in the whole of v2.1.304 →

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