Under the hood
Claude Code's version number moved to 2.1.266, with a matching new build time and commit SHA
What
The build stamp changed from 2.1.265 to 2.1.266. Everywhere Claude Code reports its own version, build time or commit hash now shows the new values, including --version output, update messages, user-agent strings, feedback templates, daemon logs and sourcemap group names.
Why
This is a routine release marker update. Nothing about how Claude Code behaves changed, only the numbers and identifiers it reports about itself.