Take an in-depth tour through hundreds of performance improvements in .NET 9.

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Exciting performance improvements are packed into .NET 9, making it the best and fastest release so far. More than 7,500 pull requests, with a significant focus on performance, contribute to this release. Key highlights include dynamic profile-guided optimization (PGO), enhanced just-in-time (JIT) compiler optimizations, refined tier 0 compilation, loop optimizations, and reductions in bounds checking overheads. These changes collectively enhance runtime efficiency, memory management, and overall application speed.

Performance Improvements in .NET 9

<p>I just hope AOT gets better as I will start making every CLI tool in C# then.</p>


<p>Always exciting to see more perf improvements. Especially cool that we’re starting to do stack allocation of objects now.</p>
