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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.288 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.287 ·

Sessions clear one more environment variable for programs they start

Claude Code now clears one more environment variable for the programs a session starts, and session state tracks a tools machine

Under the hood Internal Changes
JSON All of v2.1.287
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
InternalsArea: what it touches
Internal ChangesKind: in v2.1.287,
Internal ChangesSection of the release
What

When a Claude Code session starts another program, it controls some of that program's environment variables. Environment variables are named settings passed to a program when it starts. One more of them is now cleared before the program starts.

The session also now keeps track of a tools machine.

Why

This may be part of work on running tools on a separate, remote machine. Nothing here changes what you see.

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 which environment variable is cleared or what the tools machine is used for.

See this entry in the whole of v2.1.287 →

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