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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.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.

Under the hood Internal Changes
JSON All of v2.1.257
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
MCPArea: what it touches
Internal ChangesKind: in v2.1.257,
Internal ChangesSection of the release

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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