Well I believe you can now, but I thought I saw a recent announcement that said it wouldn't be possible with the next version.

When re-reading the article, I think what they are implying is that they are ceasing support for .net full framework and just renaming .net core ".net". If it is the case it is kind of a big deal, there is ton of .net full code outthere, that no one has any appetite to convert. If it is not the case, are they going to rename .net full to something else?

This article does the opposite of solving any confusion.

[edit] there is a session in a couple of hours at Build, perhaps it will add clarity: https://mybuild.techcommunity.microsoft.com/sessions/77031#t...

They aren’t ceasing support. .Net framework is an integral part of Windows. It’s in maintenance mode. There will never be another major version of .Net framework - just security and maintenance releases.

.Net 5 isn't just a rename of .Net Core. Though for most people I think that understanding would be sufficient and not outright wrong, just incomplete. It is where Core takes over. It's also Mono to target other platforms, in a unified programming API.

Moving projects from .Net Framework to .Net 5 should be as easy or hard as it was to go from Framework to Core. In my case, this isn't a problem for the current project that I'm working on, but thankfully Microsoft will support .Net Framework 4.8 in maintenance mode for a very long time.

I think, for the most part, Mono is being rolled into Core. From what I've seen, it looks like large chunks of Mono were moved, migrated or otherwise refactored into Core anyway. My reading of this is that what is now the Core runtime, will be what is .Net everywhere, and that while not mentioned, Mono as a separate runtime, much like .Net framework will not see new releases in favor of a single .Net 5.

They seem to indicate that both Mono and CoreCLR runtimes will be maintained and available with different focal use cases as part of .NET 5.