github-copilot

OpenAI has released GPT-5.4 mini, the lightweight variant of its agentic coding model GPT-5.4, in GitHub Copilot. The model represents OpenAI's highest-performing mini offering to date for code generation and completion tasks.

GitHub has released the Copilot SDK, positioning executable agent workflows as the successor to prompt-based AI interactions. The SDK enables developers to integrate agentic AI capabilities directly into applications rather than relying on text-based prompt-response patterns.

OpenAI's GPT-5.4, an agentic coding model, is now generally available in GitHub Copilot. The model was tested on real-world software development scenarios and demonstrated improved coding capabilities.

GitHub Copilot has reached 60 million code reviews, marking significant adoption of AI-assisted code review workflows. The milestone reflects growing reliance on AI to manage review backlogs as development velocity increases across organizations.

GitHub has published a hands-on guide demonstrating how developers can use GitHub Copilot CLI to move from initial intent through to creating reviewable pull requests. The guide shows how CLI-based development naturally integrates with IDE workflows and GitHub's collaborative tools.

GitHub has expanded its Copilot coding agent with five major features: a model picker for agent selection, self-review functionality, built-in security scanning, custom agent creation, and CLI handoff integration.

GitHub has added a model picker feature to Copilot's autonomous coding agent for Business and Enterprise tier users. The feature allows teams to select which AI model powers the asynchronous background agent that handles delegated development tasks.

GitHub deprecated selected Anthropic and OpenAI models across all Copilot experiences on February 17, 2026. The deprecation affects Copilot Chat, inline edits, ask mode, agent mode, and code completions. Specific model names and transition timelines were not disclosed in the initial announcement.

Google's Gemini 3.1 Pro, an agentic coding model optimized for autonomous development workflows, is now available in public preview within GitHub Copilot. The model emphasizes efficient edit-then-test loops and tool use in early testing.