A version-by-version tour of .NET 5 through .NET 10, covering key C# language features, ASP.NET Core improvements, Blazor updates, runtime/performance changes, and tooling additions in each release. Includes a support lifecycle table, practical guidance on which version to choose in 2026, and notes on breaking changes like the Blazor WebAssembly HttpClient streaming default in .NET 10.
Table of contents
.NET 5 — November 2020.NET 6 — November 2021 (LTS).NET 7 — November 2022.NET 8 — November 2023 (LTS).NET 9 — November 2024.NET 10 — November 2025 (LTS)How to choose a version in 2026Further reading3.4K Impressions