Claude Code v2.1.227 Major Updates - Sonnet 5 introductory pricing through 8/31 will continue to be maintained
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This is Ishikawa from the Cloud Business Division. I'd like to introduce the update for Claude Code v2.1.227 (released 2026-08-10). There are no new features, but bugs causing Bash commands to fail on CI and issues related to billing guidance have been resolved.
Here is the previous update article.
Update Summary
This covers 1 version, v2.1.227 (2026-08-10), with 5 changes listed in the CHANGELOG. The breakdown is 3 fixes, 1 slash command menu display improvement, and 1 performance improvement, with no new features, breaking changes, or deprecations. The areas where fixes were made are divided among CI (GitHub Actions), authentication state and plan determination, and conversation rewind.
Additionally, although Claude Sonnet 5 had been offered at an introductory price of $2 per million input tokens and $10 per million output tokens since June through August 31, there was an announcement that that price will continue to be available going forward.
Notable Updates
Fixed a bug where all Bash commands fail in claude-code-action
A bug has been fixed where running claude-code-action with allowed_non_write_users configured on a GitHub-hosted runner caused all Bash commands to fail. allowed_non_write_users is an option that allows invocation from users without write permissions (as described in the action.yml of claude-code-action).
For those running claude-code-action on GitHub-hosted runners, I feel the priority for updating is high, since automated reviews and auto-fixes involving command execution cannot proceed when not a single Bash command passes.
Fixed a bug that incorrectly prompted activation of usage credits with an expired login token
A bug has been fixed where, when starting a session with an expired login token, feature flags were evaluated without reflecting the user's subscription tier, causing Max plan users to be incorrectly prompted to activate usage credits intended for Fable.
For those using the Max plan who have seen usage credits guidance they didn't expect, I feel this fix may explain what happened.
Update Details
Improvements
- The slash command menu display has been improved so that blue now indicates only the selected row. Characters matching the input are shown in bold rather than a different color, and glyphs are now preserved for emoji and accented names
- Event-loop stalls that occurred during candidate display when a file is not found and during size checks for @ mentions have been reduced
Fixes
- Fixed all Bash commands failing in
claude-code-action: The issue where all Bash commands failed whenallowed_non_write_userswas configured on a GitHub-hosted runner has been resolved - Fixed plan determination with expired login tokens: The issue where feature flags were evaluated without reflecting the subscription plan, causing Max plan users to be incorrectly prompted to activate usage credits intended for Fable, has been resolved
- Fixed revived rewound conversations via
/tui: The issue where a conversation rewound past the first message would be revived upon running/tuihas been resolved
Closing
v2.1.227 is a small release with no new features, but the simultaneous resolution of the bug causing all Bash commands to fail on CI and the bug that incorrectly displayed billing guidance due to a plan determination error means the practical impact is anything but minor. I see updating as a high priority especially for those using claude-code-action.
References
