Artificial intelligenceOpenAI
OpenAI brings GPT-6 Sol and Luna to everyday AI work
The new models aim to make stronger coding and agent capabilities faster and more affordable across the API and Codex.
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The stories moving AI and software engineering forward.
Updated September 26, 2026
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Artificial intelligenceGitHub
GitHub Copilot adds new models and tighter agent controls
The latest release brings more model choice, local sandboxing, and updates across VS Code, JetBrains, Slack, and Teams.
EngineeringGitHub Engineering
Why GitHub shipped more CSS to make its site faster
GitHub details its move away from CSS-in-JS and the performance tradeoffs behind the Primer migration.
SecurityGitHub
Agentic autofix now learns from Copilot Memory
Security fixes can reuse repository context and save successful fix patterns for later alerts.
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CodeQL 2.27.1 expands language and security coverage
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Copilot canvases turn agent work into custom interfaces
GitHub shows how developers can build shared, interactive surfaces for planning and tracking work with agents.
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GitHub explores AI agents for the hard parts of fuzzing
A Security Lab taskflow agent targets coverage gaps, new harnesses, and crash triage in continuous fuzzing.
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When a chat box is the wrong interface for AI
GitHub makes the case for canvases: interfaces that give agent work more structure than a conversation can.
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Inside GitHub's million-line pull request renderer
The Copilot app team rebuilt its diff surface to keep enormous reviews responsive, even with hundreds of comments.
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GitHub Actions retires Node 20 for JavaScript actions
Runners now use Node 24, and maintainers of JavaScript actions need to update their action metadata.
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Copilot code review gets finer personal and enterprise controls
Developers can tune automatic reviews and review effort; enterprises can set a default across repositories.
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GPT-6 prompt caching gets diagnostics and explicit breakpoints
New tools help developers spot cache misses and control reused context in long-running agent workflows.
OpenAI