Open-source project maintaining MOPAC (Molecular Orbital PACkage), a semiempirical quantum chemistry package. MOPAC is actively maintained and curated by the Molecular Sciences Software Institute (MolSSI).
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GitHub integrated Claude Opus 5 into GitHub Copilot. The model is designed for long-running coding tasks including autonomous code changes and regression verification. It is available to users on Copilot Pro+, Max, Business, and Enterprise plans across various interfaces including VS Code, Visual Studio, and GitHub Mobile.
GitHub has introduced a new feature in its mobile application for iOS and Android allowing users to address CI/CD failures using the Copilot coding agent. When a GitHub Actions check fails on a pull request, users can trigger an automated analysis and fix directly via the app. Copilot generates a proposed pull request with the fix, enabling users to manage CI resolution workflows remotely.
The GitHub MCP (Model Context Protocol) Server has been updated to support the upcoming stateless MCP specification ahead of its July 28, 2026, release. Key improvements include enhanced scalability by removing session-based storage, optimized handshake processes for faster connection, and implementation of new conformance tests to verify AI agent outputs. The server transitions to using HTTP headers for request inspection, simplifying data handling.
GitHub released the Copilot cloud agent for Linear, allowing users to assign issues to the AI agent for autonomous processing. The agent analyzes issue contents, creates draft pull requests, and executes tasks within ephemeral environments powered by GitHub Actions. Users can control specific operational parameters like model selection, custom agent usage, and branch targeting directly from their Linear workspace.