dotnet/aspnetcore

Choose this fork only if you need its specific legacy customizations; otherwise upstream is the better base because this fork is materially outdated and heavily diverged.

Prefer this fork only if you need its specific 2022-era API tweaks or self-contained asset packaging and are willing to own the upkeep. If you want a current, supported ASP.NET Core base, upstream is the better choice.

Prefer this fork only if you need its existing local modifications and are willing to carry a substantial upstream merge burden. If you want the newest ASP.NET Core behavior, supportability, and lower maintenance risk, upstream is the better default.

Prefer this fork only if you specifically need the older, customized 2020-era codebase. For normal adoption, upstream is the better choice because this fork is materially stale and highly diverged.

Choose the fork only if you want a historical legacy codebase centered on early setup scripts. For anything that should track modern ASP.NET Core, upstream is the clear choice.

Prefer this fork only if its template and Identity/UI customizations are the point. If you want current ASP.NET Core behavior, active fixes, and low-merge-cost maintenance, upstream is the better choice.

Choose this fork only if you need the older customized baseline and are willing to own the maintenance burden. For new development or active framework work, upstream is the better choice.

Prefer this fork if you need a heavily customized ASP.NET Core baseline and can absorb ongoing merge and test-maintenance work. Prefer upstream if you want the latest framework fixes, full tooling, and lower operational risk.

Choose this fork only if you need a long-lived, legacy ASP.NET Core baseline with custom downstream changes. If you want current framework features, fixes, and tooling, upstream is the better default.