Artificial Intelligence
Everything that changed in Claude Code over the summer of 2026
Between 1 June and 28 August 2026, Claude Code shipped 81 releases, from 2.1.160 to 2.1.251, carrying 149 additions. Four of them change how you actually work: Claude Opus 5 as the default, cross-session messaging, self-hosted environments, and credential masking in the sandbox.