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 v2.1.267 ·

Large MCP/session control-handler hunks are pure symbol renames

Large-looking diffs in two control-handler code sections turn out to be pure variable renames

TierUnder the hoodhow much it should matter to you
Useful1my rating, 1 to 5
Signal0worth watching, 1 to 5
AreaMCPwhat it touches
KindInternal Changesin v2.1.267,
Under the hood

Large-looking diffs in two control-handler code sections turn out to be pure variable renames

What

Two sizeable code sections, one handling MCP tool-call, toggle, and auth control requests, and another handling artifact verify, upload_asset, list_files, read_file, read, and delete actions, show large diffs, but on inspection every changed line is just a minifier renaming internal variables (for example Cn to In, Ze to nt). No logic was added, removed, or changed.

Why

This is a cosmetic change from the build process with no effect on behavior; it's noted here only to explain why these sections appear heavily modified.

See this entry in the whole of v2.1.267 →