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Claude Code v2.1.148 Release Notes

Claude Code v2.1.148 fixes critical Bash tool regression affecting command execution for some users. Quick patch release restores proper exit code handling.

May 22, 2026 10 min read By ClaudeWorld

The Claude Code development team has released v2.1.148, a critical patch update that addresses a regression introduced in the previous version. This quick fix ensures that Bash tool functionality works correctly for all users.

What’s New

Critical Bug Fix

  • Bash Tool Exit Code Fix: Resolved an issue where the Bash tool was incorrectly returning exit code 127 on every command for some users. This regression was introduced in v2.1.147 and has been completely resolved.

Exit code 127 typically indicates “command not found” in Unix-like systems, which was causing confusion and potential workflow disruptions for affected users. With this fix, the Bash tool now properly returns the actual exit codes from executed commands.

How to Update

To update to Claude Code v2.1.148:

  1. Check your current version
  2. Download the latest release from the official repository
  3. Follow the standard installation procedure for your platform
  4. Verify the Bash tool is working correctly by running a test command

We recommend all users on v2.1.147 update immediately to avoid potential issues with Bash tool functionality.