.NET 8 and Blazor 8 introduced major improvements that change how Blazor apps are architected and rendered.

Unified Blazor Web App Template

A single project template now covers all rendering modes:

• Static SSR — server-rendered HTML, no interactivity overhead
• Blazor Server — interactive via SignalR
• Blazor WASM — interactive in the browser
• Auto — starts as Server, silently downloads WASM, switches automatically

Per-Component Rendering Mode

@rendermode InteractiveWebAssembly
@rendermode InteractiveServer
@rendermode InteractiveAuto

Streaming Rendering

Stream placeholder content immediately while async data loads — dramatically improves perceived performance on slow connections.

QuickGrid Component

A new built-in QuickGrid for simple, performant data tables — no third-party library needed for basic grids:

<QuickGrid Items="products.AsQueryable()">
    <PropertyColumn Property="p => p.Name" Sortable="true" />
    <PropertyColumn Property="p => p.Price" Format="C" />
</QuickGrid>

Reference:

Wikipedia: .NET 8

https://en.wikipedia.org/wiki/.NET_8