GitHub Copilot unlocks OpenAI's GPT-5.4 in VSCode and more

GitHub Copilot has added OpenAI’s GPT-5.4 coding model, bringing improvements to reasoning and multi step development tasks.
Visual Studio Magazine

Microsoft Sharpens AI Toolkit for VS Code in Foundry Update

Microsoft's February 2026 Foundry update includes broader platform changes, but the most immediate developer-facing news for VS Code users is an AI Toolkit refresh centered on tool discovery, agent ...
InfoWorld

Visual Studio Code previews agent plugins

Latest VS Code update introduces prepackaged bundles of chat customizations that can include skills, commands, agents, MCP ...

OpenAI releases a Windows version of Codex coding app

Around one month after launching Codex for Mac, OpenAI brings Codex to Windows with a new suite of IDEs supported.
GitHub

PDF Diff Viewer, a side-by-side, visual highlight, sync-scroll, PDF comparer, written in Python. Open source, mostly powered by PyMuPDF and Tkinter. Optional support for git ...

Windows binaries are provided; while no installation is needed, you need to decompress everything and then run "pdf_viewer_app.exe" within the folder "pdf_viewer_app". Make sure you have writing ...