ReleasesClaude Code version history
Claude Code 2.1.147
Released
Claude Code 2.1.147 was released on May 21, 2026 with 33 documented changes.
What changed in Claude Code 2.1.147?
In our words, from the release notes — never copied.
- Background sessions can now be pinned to remain active and survive updates, with lower priority for memory shedding.
- The `/simplify` command was replaced by `/code-review`, which now focuses on correctness checks with adjustable effort levels and GitHub PR comment integration.
- The auto-updater has been enhanced with improved network resilience, detailed error reporting, and version display on update failures.
- Rendering performance for large file diffs has been optimized.
- Duplicate entries are no longer recorded in the prompt history when resubmitting the same command.
- Critical enterprise login restrictions and various command display and execution issues have been resolved across different operating systems and environments.
Is this the latest version?
This page is frozen to Claude Code 2.1.147 and stays at this address. The Claude Code version history always lists the newest tracked version first.
Summarized by Claude Network from GitHub. Last verified .