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2025 (10)

December (2)

github: OpenAI’s GPT-5.2 is now in public preview for GitHub Copilot

GitHub

2025-12-11

OpenAI’s GPT-5.2 is now in public preview for GitHub Copilot, a model optimized for long context handling and front-end UI generation, and is available to Copilot Pro, Pro+, Business, and Enterprise users (announced on the GitHub Blog, 2025-12-11).

github: OpenAI’s GPT-5.1-Codex-Max is now in public preview for GitHub Copilot

GitHub

2025-12-04

GitHub announced that OpenAI’s GPT-5.1-Codex-Max is rolling out in public preview for GitHub Copilot and will be available to Copilot Pro, Pro+, Business, and Enterprise customers.

November (3)

github: OpenAI’s GPT-5.1, GPT-5.1-Codex and GPT-5.1-Codex-Mini are now in public preview for GitHub Copilot

GitHub

2025-11-13

GitHub Copilot has begun a public preview rollout of OpenAI’s latest 5.1-series models—GPT-5.1, GPT-5.1-Codex, and GPT-5.1-Codex-Mini—bringing the new general and code-specialized models (including a smaller, low‑cost/low‑latency Codex-Mini) to Copilot users. The announcement was posted on the GitHub Blog.

vscode: A Unified Experience for all Coding Agents

Visual Studio Code

2025-11-05

The article announces that coding agents have become central to VS Code in 2025, describing new agent mode, Copilot integration, and the GitHub Copilot CLI while noting the growing ecosystem of agents from providers like OpenAI and Anthropic.

security: SesameOp: Novel backdoor uses OpenAI Assistants API for command and control

Microsoft Security Blog

2025-11-03

Microsoft DART researchers identified a novel backdoor, dubbed SesameOp, that abuses the OpenAI Assistants API as a covert command-and-control (C2) channel. A component of the backdoor uses the Assistants API as a storage/relay to fetch commands and execute tasks inside compromised environments, avoiding traditional C2 methods.

October (1)

github: Selected Claude, OpenAI, and Gemini Copilot models are now deprecated

GitHub

2025-10-23

On October 23, 2025, GitHub deprecated selected Claude, OpenAI, and Gemini models across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions), according to a GitHub Blog changelog post.

September (3)

github: Upcoming deprecation of select Copilot models from Claude, OpenAI, and Gemini

GitHub

2025-09-23

GitHub announced it will deprecate select Copilot models provided by Claude, OpenAI, and Gemini as part of routine model retirement to prioritize newer, more capable models and maintain a fast, high‑quality Copilot experience. The post directs users to the changelog for the specific models and migration timeline and urges customers to update integrations to supported models.

github: OpenAI GPT-5-Codex is rolling out in public preview for GitHub Copilot

GitHub

2025-09-23

OpenAI’s GPT-5-Codex, a model optimized for agentic coding, is rolling out in public preview for GitHub Copilot. The model will be available to Copilot Pro, Pro+, Business, and Enterprise users.

github: OpenAI GPT-5 and GPT-5 mini are now generally available in GitHub Copilot

GitHub

2025-09-09

GitHub announced that OpenAI’s GPT-5 and GPT-5 mini are now generally available in GitHub Copilot. The announcement explicitly states GPT-5 mini is available to all Copilot plans, including Copilot Free; the excerpt does not include full details about GPT-5 plan availability.

August (1)

github: OpenAI GPT-5 mini is now available in public preview in Visual Studio, JetBrains IDEs, Xcode, and Eclipse

GitHub

2025-08-28

OpenAI's GPT-5 mini is now publicly available in preview for GitHub Copilot users within Visual Studio, JetBrains IDEs, Xcode, and Eclipse.