GitHub MCP Server 0.26.0-rc.2

v0.26.0-rc.2 Release Notes

Fixes

• fix(get_file_contents): Restore correct implementation from #1582

  • Fixed control flow to resolve git reference SHA before calling GetContents API
  • Restored matchFiles helper function for proper fallback when files aren't found directly
  • Ensures proper URI construction with resolved SHA (e.g., repo://owner/repo/<sha>/contents/path)

• chore: Update server.json schema to 2025-12-11

  • Fixed MCP registry publish workflow by updating to non-deprecated schema
  • Removed status field (now managed by registry)

Summary

This pre-release fixes a regression in get_file_contents that was introduced during the registry refactor. The tool was returning empty responses because:

1. The resolved SHA wasn't being applied before the GitHub Contents API call
2. The matchFiles fallback logic was incorrectly restructured

Both issues are now fixed, restoring the behavior from PR #1582.

Full Changelog: v0.26.0-rc.1...v0.26.0-rc.2

GitHub MCP Server 0.26.0-rc.1

Highlights

🏗️ Registry Pattern Refactoring

• Migrate context_tools to new ServerTool pattern (#1590)
• Migrate notifications.go to NewTool pattern (#1592)

These PRs are part of a larger refactoring effort moving all tools to a new ServerTool pattern with typed dependency injection. This improves code maintainability and enables better testability.

🐛 Bug Fix

• create_or_update_file - SHA is now optional; if not supplied, the tool automatically retrieves the original SHA (#1621)

📚 Documentation

• Add Antigravity installation guide (#1549)
• Add tool renaming guide (#1623)

---

What's Changed

• Fix create_or_update SHA-related failures by @almaleksia in #1621
• docs: Add Antigravity installation guide by @ManoloZocco in #1549
• Update docs to include tool renaming guide by @tommaso-moro in #1623
• Migrate context_tools to new ServerTool pattern by @SamMorrowDrums in #1590
• refactor(notifications): migrate notifications.go to NewTool pattern by @SamMorrowDrums in #1592

New Contributors

• @ManoloZocco made their first contribution in #1549

Full Changelog: v0.25.0...v0.26.0-rc.1

GitHub MCP Server 0.25.0

What's New

We have released a range of improvements to our tools which will improve how models use the GitHub MCP Server! We have also fixed a range bugs.

What's Changed

• Correct lower-case issue state by @almaleksia in #1567
• Trim leading slash in path parameter by @almaleksia in #1569
• Add support for safe tool renaming by @tommaso-moro in #1563
• fix: indent multi-line descriptions in generated docs by @SamMorrowDrums in #1576
• fix: update get-me script for go-SDK MCP protocol by @SamMorrowDrums in #1555
• Turn off default toolset when in dynamic mode by @tommaso-moro in #1401
• fix: Handle architecture-specific license dependencies by @SamMorrowDrums in #1581
• Improvements & refactoring of get_file_contents by @almaleksia in #1582
• adding review comments grouped as threads by @tonytrg in #1554

Full Changelog: v0.24.1...v0.25.0

GitHub MCP Server 0.24.1

Changelog

• 82c4930 fix: include empty properties in get_me schema for OpenAI compatibility

GitHub MCP Server 0.24.0

What's New

• Move SDK to modelcontextprocol/go-sdk #1428
• Added Repository Resource Completion handler #1493

Important

This release includes a large change from mark3labs/mcp-go to modelcontextprotocol/go-sdk. This should be transparent to end users, but please report regressions if you encounter any.

What's Changed

• Convert to modelcontextprotocol/go-sdk by @omgitsads, @LuluBeatson & @SamMorrowDrums in #1428
• Add resource completion for GitHub repository resources by @omgitsads & @almaleksia in #1493
• Add AI issue assessment workflow with github/ai-assessment-comment-labeler by @Copilot in #1498
• Add documentation for X-MCP-Tools by @tommaso-moro in #1495
• Add ai_review_label to ai-issue-assessment.yml by @Copilot in #1501
• Check if the tool is NOT read only before skipping it in read-only mode by @omgitsads in #1514

Full Changelog: v0.23.0...v0.24.0

GitHub MCP Server 0.23.0

New Feature

• Introducing tool-specific configuration support in the GitHub MCP Server: #1394

What's Changed

• replacing all with default by @tonytrg in #1489
• build(deps): bump actions/checkout from 5 to 6 by @dependabot[bot] in #1480
• Dont filter content from Copilot by @JoannaaKL in #1464
• Tommy/tool-specific-config-support by @tommaso-moro in #1394

Full Changelog: v0.22.0...v0.23.0

GitHub MCP Server 0.23.0 - Go SDK

⚠️ PRE RELEASE ⚠️

This release migrates the GitHub MCP Server from mark3labs/mcp-go to the official modelcontextprotocol/go-sdk library. While the changes are primarily structural—focused on tool schema syntax rather than behavioral changes—the migration touches a significant amount of code.

We're looking for community testing before promoting this to a stable release. If you encounter any issues, please report them in the discussions thread.

What's Changed

• Migrate gists toolset to modelcontextprotocol/go-sdk by @Copilot in #1431
• Migrate code-scanning toolset to modelcontextprotocol/go-sdk by @Copilot in #1430
• Migrate security_advisories toolset to modelcontextprotocol/go-sdk by @Copilot in #1434
• Migrate secret_scanning toolset to modelcontextprotocol/go-sdk by @Copilot in #1436
• Migrate git toolset to modelcontextprotocol/go-sdk by @Copilot in #1432
• Migrate labels toolset to modelcontextprotocol/go-sdk by @Copilot in #1433
• Migrate issues toolset to modelcontextprotocol/go-sdk by @Copilot in #1440
• Migrate dependabot toolset to modelcontextprotocol/go-sdk by @Copilot in #1429
• Migrate Repository Resources to the Go SDK by @omgitsads in #1457
• Fix handling of multi path resources by @omgitsads in #1458
• Migrate dynamic toolset to modelcontextprotocol/go-sdk by @Copilot in #1450
• Migrate discussions toolset to modelcontextprotocol/go-sdk by @Copilot in #1448
• Migrate notifications toolset to modelcontextprotocol/go-sdk by @Copilot in #1449
• Migrate pull_requests toolset to Go SDK by @LuluBeatson in #1466
• Migrate actions toolset to modelcontextprotocol/go-sdk by @Copilot in #1446
• Migrate 4 Search Tools to Go SDK by @LuluBeatson in #1468
• Migrate projects toolset to modelcontextprotocol/go-sdk by @Copilot in #1475
• Enable empty experiments toolset in Go SDK by @omgitsads in #1477
• Migrate repos toolset to modelcontextprotocol/go-sdk by @Copilot in #1445
• Update copilot instructions to reference modelcontextprotocol/go-sdk by @Copilot in #1478
• Migrate e2e tests to Go SDK by @SamMorrowDrums in #1479

Full Changelog: v0.22.0...v0.23.0-gosdk

GitHub MCP Server 0.22.0

What's Changed

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

New Contributors

• @jamesmontemagno made their first contribution in #1340

Full Changelog: v0.21.0...v0.22.0

GitHub MCP Server 0.21.0

New tools

New tool under the Git toolset group

• get_repository_tree - Get repository tree

Changes

• Lockdown mode for issues
  • Limit content that the server will surface from public repositories

Tool changes

• Add discussion metadata fields get_discussion tool

What's Changed

• Add Repository Tree Navigation Tool by @natagdunbar in #1164
• Add lockdown mode to filter issue by @JoannaaKL in #1371
• Add lockdown mode to docs by @JoannaaKL in #1391
• Update docs regarding MCP Server behaviour when bad toolsets are provided by @tommaso-moro in #1398
• Update docs to state that dynamic mode is not available in Remote Server by @tommaso-moro in #1399
• Set title for GitHub MCP Server in server.json by @thomas-sickert in #1397
• projects: serialization & pagination updates by @tmelliottjr in #1390
• Fix capitalization in GitHub MCP Server section by @NenoLoje in #1348
• MCP google/go-github@V79 update by @stephenotalora in #1407
• Add remote server to registry entry by @almaleksia in #1400
• MCP server updates using google/go-github APIs by @stephenotalora in #1408
• improve response/feedback loop with better error messages by @tonytrg in #1414
• Add discussion metadata fields to get_discussion tool by @Higangssh in #1305

New Contributors

• @natagdunbar made their first contribution in #1164
• @thomas-sickert made their first contribution in #1397
• @NenoLoje made their first contribution in #1348
• @Higangssh made their first contribution in #1305

Full Changelog: v0.20.2...v0.21.0

GitHub MCP Server 0.20.2

What's Changed

• Added get gist tool by @Vidit-Ostwal in #1105
• Add basic content sanitizer by @JoannaaKL in #1344
• build(deps): bump actions/checkout from 4 to 5 by @dependabot[bot] in #1320
• Add html filtering by @JoannaaKL in #1356
• Filter code fences by @JoannaaKL in #1367
• Allow http by @JoannaaKL in #1369
• build(deps): bump golang.org/x/net from 0.26.0 to 0.38.0 in the go_modules group across 1 directory by @dependabot[bot] in #1365
• Update to google/go-github@v77 by @stephenotalora in #1357
• Update mcp server with latest google/go-github API by @stephenotalora in #1358

New Contributors

• @Vidit-Ostwal made their first contribution in #1105

Full Changelog: v0.20.1...v0.20.2