• Update default CodeQL bundle version to 2.27.4. #4284
• Upcoming breaking change: CodeQL version 2.22.3 and earlier were discontinued on 16 October 2026 alongside GitHub Enterprise Server 3.18, and will be unsupported by the next minor release of the CodeQL Action. Added a deprecation warning for customers using these versions of CodeQL. #4266
• Starting with macOS 27 and Xcode 27, traced analyses are unsupported. See this blog post for more information. The CodeQL Action will now try to identify if a workflow is about to perform a traced analysis on version 27 or above of macOS or Xcode. If so, the CodeQL Action will emit a corresponding warning that will also be visible on the Tool Status Page. This check will be rolled out following this release of the CodeQL Action. #4221
• The undocumented TRAP cache cleanup feature that could be enabled using the CODEQL_ACTION_CLEANUP_TRAP_CACHES environment variable has been removed, as announced in the release notes for CodeQL Action 4.35.2. The analyze Action now warns if this environment variable is set. If you used TRAP cache cleanup to limit Actions cache usage, we recommend disabling TRAP caching by passing the trap-caching: false input to the init Action. #4243

• Update default CodeQL bundle version to 2.27.4. #4284
• Upcoming breaking change: CodeQL version 2.22.3 and earlier were discontinued on 16 October 2026 alongside GitHub Enterprise Server 3.18, and will be unsupported by the next minor release of the CodeQL Action. Added a deprecation warning for customers using these versions of CodeQL. #4266
• Starting with macOS 27 and Xcode 27, traced analyses are unsupported. See this blog post for more information. The CodeQL Action will now try to identify if a workflow is about to perform a traced analysis on version 27 or above of macOS or Xcode. If so, the CodeQL Action will emit a corresponding warning that will also be visible on the Tool Status Page. This check will be rolled out following this release of the CodeQL Action. #4221
• The undocumented TRAP cache cleanup feature that could be enabled using the CODEQL_ACTION_CLEANUP_TRAP_CACHES environment variable has been removed, as announced in the release notes for CodeQL Action 4.35.2. The analyze Action now warns if this environment variable is set. If you used TRAP cache cleanup to limit Actions cache usage, we recommend disabling TRAP caching by passing the trap-caching: false input to the init Action. #4243

Bundles CodeQL CLI v2.27.4

• (changelog, release)

The combined codeql-bundle.tar.gz covers Linux x64, Windows x64 and macOS (including Apple Silicon). Linux arm64 is available as the per-platform codeql-bundle-linux-arm64.tar.gz only.

Includes the following CodeQL language packs from github/codeql@codeql-cli/v2.27.4:

• codeql/actions-queries (changelog, source)
• codeql/actions-all (changelog, source)
• codeql/cpp-queries (changelog, source)
• codeql/cpp-all (changelog, source)
• codeql/csharp-queries (changelog, source)
• codeql/csharp-all (changelog, source)
• codeql/go-queries (changelog, source)
• codeql/go-all (changelog, source)
• codeql/java-queries (changelog, source)
• codeql/java-all (changelog, source)
• codeql/javascript-queries (changelog, source)
• codeql/javascript-all (changelog, source)
• codeql/python-queries (changelog, source)
• codeql/python-all (changelog, source)
• codeql/ruby-queries (changelog, source)
• codeql/ruby-all (changelog, source)
• codeql/rust-queries (changelog, source)
• codeql/rust-all (changelog, source)
• codeql/swift-queries (changelog, source)
• codeql/swift-all (changelog, source)

• Update default CodeQL bundle version to 2.27.3. #4256

• Update default CodeQL bundle version to 2.27.3. #4256

Bundles CodeQL CLI v2.27.3

• (changelog, release)

The combined codeql-bundle.tar.gz covers Linux x64, Windows x64 and macOS (including Apple Silicon). Linux arm64 is available as the per-platform codeql-bundle-linux-arm64.tar.gz only.

Includes the following CodeQL language packs from github/codeql@codeql-cli/v2.27.3:

• codeql/actions-queries (changelog, source)
• codeql/actions-all (changelog, source)
• codeql/cpp-queries (changelog, source)
• codeql/cpp-all (changelog, source)
• codeql/csharp-queries (changelog, source)
• codeql/csharp-all (changelog, source)
• codeql/go-queries (changelog, source)
• codeql/go-all (changelog, source)
• codeql/java-queries (changelog, source)
• codeql/java-all (changelog, source)
• codeql/javascript-queries (changelog, source)
• codeql/javascript-all (changelog, source)
• codeql/python-queries (changelog, source)
• codeql/python-all (changelog, source)
• codeql/ruby-queries (changelog, source)
• codeql/ruby-all (changelog, source)
• codeql/rust-queries (changelog, source)
• codeql/rust-all (changelog, source)
• codeql/swift-queries (changelog, source)
• codeql/swift-all (changelog, source)

• Breaking change: Bump the minimum required CodeQL bundle version to 2.20.7. #4205
• The codeql-action/analyze step now validates that a correct argument for the checkout_path input has been provided. The checkout_path input must be set to the path where the repository that is being analyzed is checked out at on the runner, if that path is something other than the workspace root. If the path does not point to a repository checkout or is different from the path that was used by codeql-action/init, then the CodeQL Action now produces a warning. #4148
• Resolved an issue with third-party caching implementations that prevented caches from being restored correctly. #4206
• The codeql-action/start-proxy step that is used in Code Scanning Default Setup now finds CodeQL releases using the same logic as codeql-action/init. This primarily benefits customers who are using GitHub instances other than github.com where the codeql-action/start-proxy step may previously have been unable to locate recent releases and ended up using outdated versions of the private registry authentication proxy as a result. #4198

• Breaking change: Bump the minimum required CodeQL bundle version to 2.20.7. #4205
• The codeql-action/analyze step now validates that a correct argument for the checkout_path input has been provided. The checkout_path input must be set to the path where the repository that is being analyzed is checked out at on the runner, if that path is something other than the workspace root. If the path does not point to a repository checkout or is different from the path that was used by codeql-action/init, then the CodeQL Action now produces a warning. #4148
• Resolved an issue with third-party caching implementations that prevented caches from being restored correctly. #4206
• The codeql-action/start-proxy step that is used in Code Scanning Default Setup now finds CodeQL releases using the same logic as codeql-action/init. This primarily benefits customers who are using GitHub instances other than github.com where the codeql-action/start-proxy step may previously have been unable to locate recent releases and ended up using outdated versions of the private registry authentication proxy as a result. #4198

• Upcoming breaking change: CodeQL version 2.21.2 and earlier were discontinued on 24 September 2026 alongside GitHub Enterprise Server 3.17, and will be unsupported by the next minor release of the CodeQL Action. Added a deprecation warning for customers using these versions of CodeQL. #4188
• Update default CodeQL bundle version to 2.27.2. #4203
• Fixed a bug where the decision of whether to use a per-language bundle did not account for custom configurations that reference queries outside of compiled CodeQL packs. This issue was caught during internal testing and did not affect any customer repositories. We will resume the roll out of per-language bundles in the coming weeks. #4184

• Upcoming breaking change: CodeQL version 2.21.2 and earlier were discontinued on 24 September 2026 alongside GitHub Enterprise Server 3.17, and will be unsupported by the next minor release of the CodeQL Action. Added a deprecation warning for customers using these versions of CodeQL. #4188
• Update default CodeQL bundle version to 2.27.2. #4203
• Fixed a bug where the decision of whether to use a per-language bundle did not account for custom configurations that reference queries outside of compiled CodeQL packs. This issue was caught during internal testing and did not affect any customer repositories. We will resume the roll out of per-language bundles in the coming weeks. #4184