I may be misreading them, but GP seems to be doing the re-write in the recommended way, small chunks at a time. I think the advice cautioning against wholesale replacement re-writes is sound, but piecemeal transition is much more achievable. I think it took about 5 years to transition Wayfair from asp to PHP one page/system/scheduled task at a time, but the result was a working system at all times that improved with the re-write. Not that I have any love for PHP, but (Classic) asp was even worse. (I can’t speak to asp.net, never used it.)

Asp.net Core is fantastic. ASp.net is ok but not as good.

Asp.net Core is cross platform, has a self hosted https server called Kestrel that is insanely fast, has a really sensible composition of middleware, built in DI, and a strong community. Hangfire is a great job runner, signalr is available with real-time push over web sockets, identity server 4 can handle all your Authn/Authz and Entity Framework Core + Linq is very powerful and a lot faster than the full framework version.

Cool, very good info thank you! I’ve heard great things about .net core but never had the pleasure of using it yet. I would love to play with F#!