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github.blog › changelog

Model selection for Claude and Codex agents on github.com - GitHub Changelog

… When using the Claude coding agent, the following models are currently available: Claude Sonnet 4.6 Claude Opus 4.6 Claude Sonnet 4.5 Claude Opus 4.5 When using the Codex coding agent, the following models are currently available: GPT-5.2-Codex GPT-5.3-Codex GPT-5.4 For more information, see our do… …

Apr 14, 2026 · Allison

github.blog › changelog

GPT-5.3-Codex is now the base model for Copilot Business and Enterprise - GitHub Changelog

… May 17, 2026: GPT-5.3-Codex becomes the base model for all Copilot Business and Copilot Enterprise organizations. February 4, 2027: End of the LTS availability window for GPT-5.3-Codex. …

May 17, 2026 · Allison

github.blog › changelog

GPT-5.2 and GPT-5.2-Codex deprecated - GitHub Changelog

… Model Deprecation date Suggested alternative GPT-5.2 2026-06-05 GPT-5.5 GPT-5.2-Codex 2026-06-05 GPT-5.3-Codex Please update your workflows and integrations to use supported models. …

Jun 5, 2026 · Allison

github.blog › changelog

GPT-5.1, GPT-5.1 Codex, GPT-5.1-Codex-Max, and GPT-5.1-Codex-Mini deprecated - GitHub Changelog

… Model Deprecation date Suggested alternative GPT-5.1 2026-04-15 GPT-5.3-Codex GPT-5.1-Codex 2026-04-01 GPT-5.3-Codex GPT-5.1-Codex-Mini 2026-04-01 GPT-5.3-Codex GPT-5.1-Codex-Max 2026-04-01 GPT-5.3-Codex Please update your workflows and integrations to use supported models. …

Apr 3, 2026 · Allison

github.blog › changelog

Upcoming deprecation of GPT-5.2 and GPT-5.2-Codex - GitHub Changelog

… We will deprecate the following models across all GitHub Copilot experiences including Copilot Chat, inline edits, ask and agent modes, and code completions , with the exception of GPT-5.2 in Copilot Code Review, on June 5th, 2026: Model Deprecation date Suggested alternative GPT-5.2 6-05-2026 GPT-… …

May 1, 2026 · Allison

github.blog › changelog

Copilot Student GPT-5.3-Codex removal from model picker - GitHub Changelog

Back to changelog Starting today, in our Copilot Student plan, we are removing GPT-5.3-Codex from the model picker. …

Apr 27, 2026 · Allison

github.blog › changelog

Upcoming deprecation of Gemini 3 Pro and GPT-5.1 models - GitHub Changelog

Back to changelog We will deprecate the following models across all GitHub Copilot experiences including Copilot Chat, inline edits, ask and agent modes, and code completions : Model Deprecation date Suggested alternative Gemini 3 Pro 2026-03-26 Gemini 3.1 Pro GPT-5.1 2026-04-15 GPT-5.4 GPT-5.1-Cod… …

Mar 2, 2026 · Allison

github.blog › changelog

Codex as agent provider and agentic enhancements in JetBrains IDEs - GitHub Changelog

… To use it, first install the Codex CLI on your machine. Then go to Settings Tools GitHub Copilot Chat , enable Codex and set the Codex CLI path. Once configured, select Codex from the agent picker in the Copilot Chat panel to start a session. …

Jul 7, 2026 · Allison

github.blog › changelog

Copilot memory and Ollama in GitHub Copilot for JetBrains - GitHub Changelog

… Expanded Codex workflows Codex sessions are now visible in agent debug logs. Codex workflows also support updated permission modes and customizations through instructions and skills, helping you adapt agent behavior to your project. …

Aug 11, 2026 · Allison

github.blog › changelog

Dependabot alerts are now assignable to AI agents for remediation - GitHub Changelog

… How it works From the Dependabot alert detail page, select Assign to Agent and then select your desired coding agent, including Copilot, Claude and Codex. …

Apr 7, 2026 · Allison