- The CodeQL CLI versions up to and including version 2.4.4 are not compatible with the CodeQL Action 1.1.1 and later. The Action will emit an error if it detects that it is being used by an incompatible version of the CLI. [#931](https://github.com/github/codeql-action/pull/931)
- Beware that the CodeQL build tracer in this release (and in all earlier releases) is incompatible with Windows 11 and Windows Server 2022. This incompatibility affects database extraction for compiled languages: cpp, csharp, go, and java. As a result, analyzing these languages with the `windows-latest` or `windows-2022` Actions virtual environments is currently unsupported. If you use any of these languages, please use the `windows-2019` Actions virtual environment or otherwise avoid these specific Windows versions until a new release fixes this incompatibility.
- Add `sarif-id` as an output for the `upload-sarif` and `analyze` actions. [#889](https://github.com/github/codeql-action/pull/889)
- Add `ref` and `sha` inputs to the `analyze` action, which override the defaults provided by the GitHub Action context. [#889](https://github.com/github/codeql-action/pull/889)
- Add a better warning message stating that experimental features will be disabled if the workflow has been triggered by a pull request from a fork or the `security-events: write` permission is not present. [#882](https://github.com/github/codeql-action/pull/882)
- Display a better error message when encountering a workflow that runs the `codeql-action/init` action multiple times. [#876](https://github.com/github/codeql-action/pull/876)
- The feature to wait for SARIF processing to complete after upload has been disabled by default due to a bug in its interaction with pull requests from forks.
- Update default CodeQL bundle version to 2.7.5. [#866](https://github.com/github/codeql-action/pull/866)
- Fix a bug where SARIF files were failing upload due to an invalid test for unique categories. [#872](https://github.com/github/codeql-action/pull/872)
- The `analyze` and `upload-sarif` actions will now wait up to 2 minutes for processing to complete after they have uploaded the results so they can report any processing errors that occurred. This behavior can be disabled by setting the `wait-for-processing` action input to `"false"`. [#855](https://github.com/github/codeql-action/pull/855)
- The `upload-sarif` action now allows multiple uploads in a single job, as long as they have different categories. [#801](https://github.com/github/codeql-action/pull/801)
- Update default CodeQL bundle version to 2.7.1. [#816](https://github.com/github/codeql-action/pull/816)
- The `init` step of the Action now supports `ram` and `threads` inputs to limit resource use of CodeQL extractors. These inputs also serve as defaults to the subsequent `analyze` step, which finalizes the database and executes queries. [#738](https://github.com/github/codeql-action/pull/738)
- When used with CodeQL 2.7.1 or above, the Action now includes custom query help in the analysis results uploaded to GitHub code scanning, if available. To add help text for a custom query, create a Markdown file next to the `.ql` file containing the query, using the same base name but the file extension `.md`. [#804](https://github.com/github/codeql-action/pull/804)
- Update default CodeQL bundle version to 2.6.0. [#712](https://github.com/github/codeql-action/pull/712)
- Update baseline lines of code counter for python. All multi-line strings are counted as code. [#714](https://github.com/github/codeql-action/pull/714)
- Remove old baseline LoC injection [#715](https://github.com/github/codeql-action/pull/715)
- Fix an issue where a summary of diagnostics information from CodeQL was not output to the logs of the `analyze` step of the Action. [#672](https://github.com/github/codeql-action/pull/672)
- The `init` step of the Action now supports a `source-root` input as a path to the root source-code directory. By default, the path is relative to `$GITHUB_WORKSPACE`. [#607](https://github.com/github/codeql-action/pull/607)
- The `init` step will now try to install a few Python tools needed by this Action when running on a self-hosted runner. [#616](https://github.com/github/codeql-action/pull/616)
- The `analyze` step of the Action now supports a `skip-queries` option to merely build the CodeQL database without analyzing. This functionality is not present in the runner. Additionally, the step will no longer fail if it encounters a finalized database, and will instead continue with query execution. [#602](https://github.com/github/codeql-action/pull/602)
- Fix out of memory in hash computation. [#550](https://github.com/github/codeql-action/pull/550)
- Clean up logging during analyze results. [#557](https://github.com/github/codeql-action/pull/557)
- Add `--finalize-dataset` to `database finalize` call, freeing up some disk space after database creation. [#558](https://github.com/github/codeql-action/pull/558)
- Pass the `--sarif-group-rules-by-pack` argument to CodeQL CLI invocations that generate SARIF. This means the SARIF rule object for each query will now be found underneath its corresponding query pack in `runs[].tool.extensions`. [#546](https://github.com/github/codeql-action/pull/546)
- Improve grouping of analysis logs. Add a new log group containing a summary of metrics and diagnostics, if they were produced by CodeQL builtin queries. [#515](https://github.com/github/codeql-action/pull/515)
- Add metrics and diagnostics summaries from custom query suites to the analysis summary log group. [#532](https://github.com/github/codeql-action/pull/532)
