Update GitHub MCP Server from v0.21.0 to v0.22.0

[Copilot]

Updates the default GitHub MCP Server Docker image version to v0.22.0, released November 24, 2025. This version includes improved PR template integration, better error reporting for review comments, and performance optimizations for lockdown mode.

Changes

• Version constant: DefaultGitHubMCPServerVersion updated in pkg/constants/constants.go
• Test expectations: Updated version assertions across 7 test files
• Workflow lock files: Regenerated all 94 .lock.yml files with new Docker image reference

New Capabilities in v0.22.0

• PR creation now uses repository PR templates automatically
• Review comment API failures are now reported instead of silently failing
• In-memory cache improves lockdown mode performance
• Go SDK Migrator agent available for migration workflows

All changes are backward compatible with no breaking changes or migration requirements.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[ca] Update GitHub MCP Server from v0.21.0 to v0.22.0</issue_title>
<issue_description>## Version Update

• Previous: v0.21.0 → New: v0.22.0
• Release Date: November 24, 2025 (09:46:01 UTC)
• Timeline: Released 7 days after v0.21.0 (released November 17, 2025)

Breaking Changes

None detected

New Features

• Go SDK Migrator Agent: New agent for Go SDK migration workflows
• Copilot Instructions: Added Copilot-specific instructions to improve workflow integration
• OpenAI Codex Installation Guide: New documentation for OpenAI Codex integration
• Remote Server Headers: Added remote server header support for lockdown configuration
• In-Memory Cache: Added in-memory cache for lockdown mode performance improvements
• Go Report Card: Added badge to README for code quality visibility

Bug Fixes

• PR Review Comment Error Reporting: Now reports errors when API silently fails to add review comments (previously failed silently)
• PR Template Instructions: LLM now properly instructed to use pull request templates when creating PRs

Security

None listed

Performance

• In-memory cache for lockdown mode should improve performance for locked-down repositories

CLI Discovery

Not applicable - GitHub MCP Server is a Go binary, not a CLI tool with discoverable commands

Impact Assessment

• Risk Level: Low
• Affected Features:
  • Pull request creation workflows (now uses PR templates)
  • Review comment workflows (better error handling)
  • Lockdown mode operations (performance improvement)
  • Go SDK migration workflows (new agent)
• Migration Required: No - all changes are additive or improvements to existing functionality

Release Highlights (from GitHub)

What's Changed

• Add Go SDK Migrator agent by @omgitsads in Add Go SDK Migrator agent github/github-mcp-server#1424
• Add copilot instructions by @Copilot in Add copilot instructions github/github-mcp-server#1376
• Add installation guide for OpenAI Codex by @jamesmontemagno in Add installation guide for OpenAI Codex github/github-mcp-server#1340
• Report error when API silently fails to add review comment by @almaleksia in Report error when API silently fails to add review comment github/github-mcp-server#1441
• adding remote server header for lockdown configuration by @tonytrg in adding remote server header for lockdown configuration github/github-mcp-server#1417
• Instruct LLM to use pull request template when creating PRs by @almaleksia in Instruct LLM to use pull request template when creating PRs github/github-mcp-server#1442
• Add in memory cache for lockdown mode by @JoannaaKL in Add in memory cache for lockdown mode github/github-mcp-server#1416
• Add go report card to the Readme by @JoannaaKL in Add go report card to the Readme github/github-mcp-server#1462
• Delete package configuration from server.json (temporarily) by @almaleksia in Delete package configuration from server.json (temporarily) github/github-mcp-server#1474

New Contributors

• @jamesmontemagno made their first contribution in Add installation guide for OpenAI Codex github/github-mcp-server#1340

Package Links

• Repository: https://github.com/github/github-mcp-server
• Release Notes: https://github.com/github/github-mcp-server/releases
• Specific Release: https://github.com/github/github-mcp-server/releases/tag/v0.22.0
• Full Changelog: github/github-mcp-server@v0.21.0...v0.22.0

Action Items

• Update version in ./pkg/constants/constants.go
• Run make recompile to regenerate workflows
• Test that workflows still function correctly
• Verify PR template integration works as expected
• Confirm lockdown mode cache improvements

AI generated by CLI Version Checker</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [ca] Update GitHub MCP Server from v0.21.0 to v0.22.0 #4678

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