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Sweep 12 Nov 2026 · 20:38Z Build v2.1.323 540 read Stable v2.1.311 Latest v2.1.322 Next v2.1.323 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.1.281 ·

Env filtering warns about dropped host-spawn env keys, once per key

Claude Code now tracks which settings environment variables it dropped for host-launched processes, to warn once per variable

You'll notice Improvements
JSON All of v2.1.281
You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SettingsArea: what it touches
ImprovementsKind: in v2.1.281,
ImprovementsSection of the release

Unclear The finding does not show the warning text or where it appears.

What

Your settings can set environment variables, values passed to the programs Claude Code starts. Some of these are filtered out for processes launched by the host. Claude Code now keeps a record of which ones it has already warned about being dropped, so each is warned about once. The record is cleared when the settings are reset.

Why

You are not warned about the same dropped variable over and over.

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 doubtThe finding does not show the warning text or where it appears.

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