.NET 9

 




Top updates across 8 key areas

𝗖# 𝟭𝟯
Params collections, enhanced lock types, and a new escape make coding smoother. Plus, implicit index access to simplify initialization.

𝗔𝗦𝗣.𝗡𝗘𝗧 𝗖𝗼𝗿𝗲
OpenAPI enhancements, faster asset delivery, PAR support, and the new HybridCache library boost performance and security.

𝗘𝗙 𝗖𝗼𝗿𝗲
Improved Cosmos DB support, pre-compiled AOT queries, better LINQ, and streamlined migrations make data handling faster.

𝗥𝘂𝗻𝘁𝗶𝗺𝗲
Feature switches, control-flow enforcement, and dynamic adaptation improve performance across different app sizes.

𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀
Base64Url, new TimeSpan overloads, new collections, and cryptography upgrades add flexibility and security.

𝗦𝗗𝗞
Run tests in parallel, new terminal logger by default, a workload sets feature, and more analyzers for better productivity.

.𝗡𝗘𝗧 𝗔𝘀𝗽𝗶𝗿𝗲
New MSBuild SDK, an improved dashboard, telemetry updates, support to wait for dependencies, and lots more.

.𝗡𝗘𝗧 𝗠𝗔𝗨𝗜
Opt into Native AOT deployment, embedding APIs, full trimming, and new controls for smaller, faster mobile apps.


 .NET Backend Developer roadmap 👇

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