- Various fixes and improvements
- Hide proxy behind a feature flag, due to performance issues: #218083
- Add a feature flag for testing to disable strict go.mod validation
- Document why case en/decoding is necessary
- Refactor pseudo-version processing
  - Move logic from VersionFinder to ModuleHelpers
  - Document reasoning for matching and validation
- Replace BasicAuthHelper and custom method with route setting
- Use serach_files_by_name instead of tree to improve performance
- Use correct content type for zip: closes #214876