I was/am a Rebol developer, and all Rebol developers know about Red as it was/is the next of Re(d|bol) languages, after we came to terms that the Rebol 3 which was about to concretely improve on Rebol 2, and be open source just won't happen.
Red also improved on Rebol 2 a lot and is a proper Rebol successor. It was started by a very productive and prominent Rebol developer, that I greatly appreciate. The only problem I see with it is that maybe they were too ambitious. They started with their own low level language (compiler) Red/system, and out of that built Red interpreter. They are really doing things as they should be done I think, but it's taking quite a lot of time.
Red, like in a way Rebol has a lot of focus on GUI and I needed a language for backend development. I was waiting for their "IO branch" for years, it was hard for me to contribute in a concrete way, since their approach was quite low level and at around 2018 started making a simple Rebol like interpreter in Go, because Go is great on the backend and I just wanted something that works, hence the higher level language than C/C++, that's now Rye.
Red is still moving forward, their community is mostly on gitter I think. It is small, but so was Rebol's and it's much bigger than Rye's, which doesn't really have a community yet :).
btw, can you talk a bit more about how you came in touch with Rebol, what do you and other people use Rebol for, and if you are already using Rye for production apps?
Red also improved on Rebol 2 a lot and is a proper Rebol successor. It was started by a very productive and prominent Rebol developer, that I greatly appreciate. The only problem I see with it is that maybe they were too ambitious. They started with their own low level language (compiler) Red/system, and out of that built Red interpreter. They are really doing things as they should be done I think, but it's taking quite a lot of time.
Red, like in a way Rebol has a lot of focus on GUI and I needed a language for backend development. I was waiting for their "IO branch" for years, it was hard for me to contribute in a concrete way, since their approach was quite low level and at around 2018 started making a simple Rebol like interpreter in Go, because Go is great on the backend and I just wanted something that works, hence the higher level language than C/C++, that's now Rye.
Red is still moving forward, their community is mostly on gitter I think. It is small, but so was Rebol's and it's much bigger than Rye's, which doesn't really have a community yet :).