Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.273 ·

MCP server allow/deny-list computation refactored into named helpers

Internal code for computing which MCP servers are allowed or blocked was reorganized into separate functions

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal0worth watching, 1 to 5
AreaMCPwhat it touches
KindInternal Changesin v2.1.273,
Under the hood

Internal code for computing which MCP servers are allowed or blocked was reorganized into separate functions

What

The logic that determines which MCP servers (external tool integrations) are allowed or denied based on policy settings was split into three separate internal functions: one for computing allowed servers (respecting managed-hooks-only style policy), one for computing denied servers (deduplicated across managed settings sources), and one for combining all these inputs into a single hash.

Why

This is an internal refactor of how the allowedMcpServers allowlist setting, which controls which MCP servers users can add, is computed. It does not change the setting's behavior for users.

See this entry in the whole of v2.1.273 →