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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

Claude Code v2.1.310 ·

Environment variables from settings can now remember the value they replaced

When settings set environment variables, Claude Code can now record each variable's earlier value so it can be put back later

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
1Signal: 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 when this recording is used, so it is unclear whether removing a variable from your settings now restores its old value.

What

Your settings can set environment variables, which are named values passed to programs. When Claude Code applies them, it can now record the value a variable had before it was overwritten, so that value can be put back later.

Why

This suggests that environment variables from settings can be undone when settings reload.

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 when this recording is used, so it is unclear whether removing a variable from your settings now restores its old value.

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