github

Microsoft open-sourced its Eclipse IDE Copilot plugin on May 21, releasing roughly 15,000 lines of Java under MIT and drawing 1,200+ stars within hours.

GitHub Code Quality added code coverage metrics to pull requests on May 26, completing a roadmap item announced at the feature's October 2025 launch.

GitHub launched a native desktop app for Windows, macOS, and Linux that runs multiple isolated Copilot agent sessions in their own git worktrees and ties them back to issues, pull requests, and merges.

GitHub released the Enterprise Server 3.21 release candidate on May 13, making organization custom properties generally available along with Projects hierarchy views, REST API 2026-03-10, and secret scanning and Actions workflow improvements.

The DevTeam released NetHack 5.0.0 on May 2, ending an 11-year wait since 3.6.0 and folding more than 3,100 fixes, a Lua-driven dungeon and quest pipeline, and full C99 source into the 39-year-old roguelike.

On April 28, 2026, Microsoft published the earliest known DOS source code under the MIT License, including the 86-DOS 1.00 kernel and PC-DOS 1.00 development snapshots transcribed from Tim Paterson's printouts.

CVE-2026-3854 let any authenticated user run code on GitHub's backend with a single git push. GitHub patched github.com in two hours on March 4; public disclosure on April 28 found most Enterprise Server instances still vulnerable.

GitHub froze new Copilot Pro, Pro+, and Student sign-ups on April 20 and announced a June 1 switch to AI Credits, with the Opus 4.7 multiplier rising from 7.5x to 27x.

Intel archived the GitHub repository that anchored its Open Ecosystem Community and Evangelism program on April 20, 2026, and shuttered several community-facing projects — the most visible step in a multi-quarter pullback that began with executive comments last October.

Git 2.54, released April 20, introduces a new history-editing command inspired by Jujutsu, config-based hooks, geometric repacking by default, and a pluggable object database built over two years and roughly 400 commits.

The new public-preview command installs, pins, updates, and publishes portable skills for Copilot, Claude Code, Cursor, Codex, Gemini CLI, and Antigravity — with git-backed provenance and an explicit prompt-injection warning.

The Copilot SDK, now in public preview with support for five languages and bring-your-own-key authentication, exposes the same agent runtime powering GitHub Copilot CLI as a programmable library for building custom AI-driven tools and workflows.