Microsoft Developer Blogs company blog

Improving C# Memory Safety

by Richard Lander devblogs.microsoft.com published 2026-05-21

The `unsafe` keyword is being redesigned to mark caller-facing contracts rather than just syntax. Safety obligations between callers and callees become visible and reviewable. The model is motivated by the rise of AI-assisted code generation and arrives as a preview in .NET 11.

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Software EngineeringSecurity & Privacy2026

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