Sourced from github/codeql-action's changelog.

CodeQL Action Changelog

See the releases page for the relevant changes to the CodeQL CLI and language packs.

[UNRELEASED]

No user facing changes.

2.21.6 - 13 Sep 2023

• Better error message when there is a failure to determine the merge base of the code to analysis. #1860
• Improve the calculation of default amount of RAM used for query execution on GitHub Enterprise Server. This now reduces in proportion to the runner's total memory to better account for system memory usage, helping to avoid out-of-memory failures on larger runners. This feature is already available to GitHub.com users. #1866
• Enable improved file coverage information for GitHub Enterprise Server users. This feature is already available to GitHub.com users. #1867
• Update default CodeQL bundle version to 2.14.4. #1873

2.21.5 - 28 Aug 2023

• Update default CodeQL bundle version to 2.14.3. #1845
• Fixed a bug in CodeQL Action 2.21.3 onwards that affected beta support for Project Lombok when analyzing Java. The environment variable CODEQL_EXTRACTOR_JAVA_RUN_ANNOTATION_PROCESSORS will now be respected if it was manually configured in the workflow. #1844
• Enable support for Kotlin 1.9.20 when running with CodeQL CLI v2.13.4 through v2.14.3. #1853

2.21.4 - 14 Aug 2023

• Update default CodeQL bundle version to 2.14.2. #1831
• Log a warning if the amount of available disk space runs low during a code scanning run. #1825
• When downloading CodeQL bundle version 2.13.4 and later, cache these bundles in the Actions tool cache using a simpler version number. #1832
• Fix an issue that first appeared in CodeQL Action v2.21.2 that prevented CodeQL invocations from being logged. #1833
• We are rolling out a feature in August 2023 that will improve the quality of file coverage information. #1835

2.21.3 - 08 Aug 2023

• We are rolling out a feature in August 2023 that will improve multi-threaded performance on larger runners. #1817
• We are rolling out a feature in August 2023 that adds beta support for Project Lombok when analyzing Java. #1809
• Reduce disk space usage when downloading the CodeQL bundle. #1820

2.21.2 - 28 Jul 2023

• Update default CodeQL bundle version to 2.14.1. #1797
• Avoid duplicating the analysis summary within the logs. #1811

2.21.1 - 26 Jul 2023

• Improve the handling of fatal errors from the CodeQL CLI. #1795
• Add the sarif-output output to the analyze action that contains the path to the directory of the generated SARIF. #1799

2.21.0 - 19 Jul 2023

• CodeQL Action now requires CodeQL CLI 2.9.4 or later. For more information, see the corresponding changelog entry for CodeQL Action version 2.20.4. #1724

2.20.4 - 14 Jul 2023

... (truncated)

• 701f152 Merge pull request #1875 from github/update-v2.21.6-6a6a82470
• 1b62990 Fix misplaced changelog entry
• 5462f69 Update changelog for v2.21.6
• 6a6a824 Merge pull request #1873 from github/update-bundle/codeql-bundle-v2.14.4
• 88c7a5c Add changelog note
• da65035 Update default bundle to codeql-bundle-v2.14.4
• 43750fe Merge pull request #1872 from github/henrymercer/user-errors-for-upload-sarif
• a7c12a5 Address PR comments
• 7218de5 Merge branch 'main' into henrymercer/user-errors-for-upload-sarif
• 4764dce Merge pull request #1866 from github/henrymercer/enable-scaling-reserved-ram-...
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