github-mcp-server 0.26.1

[BrewTestBot]

Created by brew bump

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Created with brew bump-formula-pr.

Details

release notes

Fixes regression breaking some clients https://github.com/github/github-mcp-server/issues/1644
What's Changed

Fix ring buffer panic by @mattdholloway in Fix ring buffer panic github/github-mcp-server#1556
Omit icon sizes field for backward compatibility with older MCP clients by @Copilot in Omit icon sizes field for backward compatibility with older MCP clients github/github-mcp-server#1645

Full Changelog: github/github-mcp-server@v0.26.0...v0.26.1

View the full release notes at https://github.com/github/github-mcp-server/releases/tag/v0.26.1.

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[daeho-ro]

Superseded by

• github-mcp-server 0.26.2 #259284

[chenrui333]

  ==> /home/linuxbrew/.linuxbrew/Cellar/github-mcp-server/0.26.1/bin/github-mcp-server stdio 2>&1
  time=2025-12-19T00:41:46.899Z level=INFO msg="starting server" version=0.26.1 host="" dynamicToolsets=false readOnly=false lockdownEnabled=false
  GitHub MCP Server running on stdio
  time=2025-12-19T00:41:46.901Z level=INFO msg="server run start"
  time=2025-12-19T00:41:46.901Z level=INFO msg="server connecting"
  time=2025-12-19T00:41:46.901Z level=INFO msg="server session connected" session_id=""
  time=2025-12-19T00:41:46.901Z level=ERROR msg="method invalid during initialization" method=tools/call
  time=2025-12-19T00:41:46.901Z level=INFO msg="server session disconnected" session_id=""
  time=2025-12-19T00:41:46.901Z level=ERROR msg="server session ended with error" error="server is closing: EOF"
  time=2025-12-19T00:41:46.901Z level=ERROR msg="error running server" error="server is closing: EOF"
  Error: error running server: server is closing: EOF
  Usage:
    server stdio [flags]
  
  Flags:
    -h, --help   help for stdio
  
  Global Flags:
        --content-window-size int          Specify the content window size (default 5000)
        --dynamic-toolsets                 Enable dynamic toolsets
        --enable-command-logging           When enabled, the server will log all command requests and responses to the log file
        --export-translations              Save translations to a JSON file
        --features strings                 Comma-separated list of feature flags to enable
        --gh-host string                   Specify the GitHub hostname (for GitHub Enterprise etc.)
        --lockdown-mode                    Enable lockdown mode
        --log-file string                  Path to log file
        --read-only                        Restrict the server to read-only operations
        --repo-access-cache-ttl duration   Override the repo access cache TTL (e.g. 1m, 0s to disable) (default 5m0s)
        --tools strings                    Comma-separated list of specific tools to enable
        --toolsets strings                 Comma-separated list of tool groups to enable (no spaces).
                                           Available: actions, code_security, dependabot, discussions, gists, git, issues,
                                           	     labels, notifications, orgs, projects, pull_requests, repos,
                                           	     secret_protection, security_advisories, stargazers, users
                                           Special toolset keywords:
                                             - all: Enables all available toolsets
                                             - default: Enables the default toolset configuration of:
                                           	     context, issues, pull_requests, repos, users
                                           Examples:
                                             - --toolsets=actions,gists,notifications
                                             - Default + additional: --toolsets=default,actions,gists
                                             - All tools: --toolsets=all
  
  error running server: server is closing: EOF
  Error: github-mcp-server: failed
  An exception occurred within a child process:
    Minitest::Assertion: Expected: 0
    Actual: 1