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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.248 ·

Config writers gained an in-memory short circuit

Config saves can be kept in memory instead of written to disk.

Nothing to try yet In Development
JSON All of v2.1.248
Nothing to try yetTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
InternalsArea: what it touches
In DevelopmentKind: in v2.1.248,
In DevelopmentSection of the release

A "memory" writer mode short-circuits config writes; nothing in the build sets it.

What

The project and global config writers now return before writing to disk when an in-memory mode is set, and deleting a project config has a matching in-memory path. A setter turns the mode on with the value "memory".

Evidence

unhandedWritesInMemory

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.248 →

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