Microsoft has released version 1.0 of its open-source Agent Framework, positioning it as the production-ready evolution of the project introduced in October 2025 by combining Semantic Kernel ...

.NET Framework remains widely used in legacy enterprise systems built around Windows-based architecture Performance improvements and flexible deployment make modern .NET suitable for APIs and cloud ...

According to Neowin, Microsoft is removing .NET Framework 3.5 from the Optional Windows Features menu in future versions of Windows 11. The change marks a shift in how legacy .NET components are ...

ASP.NET Core planning for .NET 11 is now in progress! This roadmap is currently just a placeholder. We'll update the roadmap with specific planned features as planning progresses. This issue ...

Earlier this week, Microsoft patched a vulnerability that was flagged with the "highest ever" severity rating received by an ASP.NET Core security flaw. This HTTP request smuggling bug (CVE-2025-55315 ...

Microsoft has expanded its .NET bug bounty program and increased rewards to $40,000 for some .NET and ASP.NET Core vulnerabilities. Madeline Eckert, a senior program manager for Researcher Incentives ...

.NET Aspire is a cloud-native application stack designed to simplify the development of distributed systems in .NET. Introduced at Microsoft's 2024 Build developer conference, it provides a set of ...

In December 2024, Microsoft Threat Intelligence observed limited activity by an unattributed threat actor using a publicly available, static ASP.NET machine key to inject malicious code and deliver ...

This issue is a locked mirror of dotnet/aspnetcore#58598. See that issue for discussion. We'll be reshipping ASP.NET Core 2.1 as ASP.NET Core 2.3 and encourage ASP.NET Core 2.2 users to update to it.