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Microsoft AI Blog

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16:54
2026-05-21
blogs.microsoft.com
developer-tools

Improving C# Memory Safety

The C# team is redesigning the `unsafe` keyword to enforce stricter memory safety contracts, expanding it from marking pointer usage to any code the compiler cannot validate as safe. This change, plan…

20:56
2026-05-20
blogs.microsoft.com
news

What is the history of the ERROR_ARENA_TRASHED error code?

The ERROR_ARENA_TRASHED error code (error 7) originated in MS-DOS, where it indicated that the memory arena headers—used to track allocated and free memory blocks—had become corrupted, as the system d…

19:30
2026-05-05
blogs.microsoft.com
ai-infrastructure

Azure Cosmos DB Conf 2026 Recap: Lessons from Production

At Azure Cosmos DB Conf 2026, engineers from OpenAI, Vercel, and Walmart shared case studies demonstrating that database performance failures are almost always design failures, not capacity issues. An…

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