RFC: Upgrading BlazorBlueprint to .NET 10 - seeking community feedback

[mathewtaylor]

With .NET 10 now GA (November 2025) and .NET 8 end-of-support approaching in November 2026, I'm planning the framework upgrade path for BlazorBlueprint and would love community input.

Background

• BlazorBlueprint currently targets .NET 8 - .NET 10 is an LTS release (supported until November 2028)
• The codebase has no legacy API usage, so the technical upgrade is straightforward

I have 3 ideas currently:

1. Direct upgrade - Drop net8.0, target net10.0 only
2. Multi-target - Support both net8.0 and net10.0
3. Defer - Stay on net8.0 until closer to its EOL

Questions for the community

1. What .NET version are you currently running in production? (.NET 8, .NET 9, .NET 10, or a mix?)
2. Have you already upgraded (or plan to upgrade) your projects to .NET 10?
3. Would dropping .NET 8 support block you from adopting newer versions of BlazorBlueprint?
4. Do you have a preference between the options above? (A, B, or C)
5. If multi-targeting (Option B), how long should .NET 8 support be maintained? (e.g., until its EOL in November 2026, or shorter?)

Any other thoughts or concerns are welcome. Your feedback will directly shape the upgrade timeline.

Cheers,
Mathew

[Gareth064]

.NET 10 for Blazor Server
.NET 9 for Blazor WASM

Both work fine with the current version of this library.

For those who are on 8 and can't upgrade just yet, I think you should of multi support until 8 is EOL, then remove.

[mathewtaylor]

Thanks for the input @Gareth064. I think I will experiment to see if there are any performance gains just to see if its worth the time I guess.

[peterhym21]

Currently on .NET 8 for Blazor Server, working great
have planes to upgrade in the future.

I would also suggest multi support until 8 is EOL and the remove

[Zach-Richling]

I'm on .NET 10 Blazor WASM. I think supporting .NET 8/9 until EOL makes sense.

[DCarlson12]

Target multiple if it doesn’t present a problem for development. Do you see any latest C# lang features that would improve performance by a reasonable amount? I’d also make sure to put a note somewhere indicating end of support for .NET 8 at a certain version or time.