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.
InfoWorld

Visual Studio Code previews agent plugins

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

Flaws in popular VSCode extensions expose developers to attacks

Vulnerabilities with high to critical severity ratings affecting popular Visual Studio Code (VSCode) extensions collectively downloaded more than 128 million times could be exploited to steal local ...
InfoWorld

Visual Studio adds GitHub Copilot unit testing for C#

GitHub Copilot testing for .NET in Visual Studio 2026 v18.3 can generate tests for the xUnit, NUnit, and MSTest test frameworks. Microsoft has made GitHub Copilot testing for .NET, a new capability in ...