CodeQL 2.23.9 was released on January 13, 2026

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GitHub Changelog

CodeQL 2.23.9 has been released with no user-facing CLI changes or query updates. The release includes a deprecation notice: support for Kotlin versions 1.6 and 1.7 will be removed in CodeQL 2.24.1 (February 2026), requiring Kotlin 1.8 or later for database extraction. The update is automatically deployed to GitHub code scanning users on github.com and will be included in future GitHub Enterprise Server releases.