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Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.257 ·

MCP server env-var scrubbing for allow/deny display now covers a fallback env too

Env-var masking in allow and deny server displays now also covers a fallback env source.

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaMCPwhat it touches
KindInternal Changesin v2.1.257,
Under the hood

Env-var masking in allow and deny server displays now also covers a fallback env source.

The env-var scrubbing used when building deniedMcpServers and allowedMcpServers display lists now also redacts and normalizes a fallback env source (yxn().fallbackEnv) in addition to the primary env map, so MCP server commands and URLs shown for allow/deny rules stay masked regardless of which env the values came from.

See this entry in the whole of v2.1.257 →

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