@Dennis - More or less, yes. There were breaking changes between E3 (rapid...) and E4 (Open...), and Phix is a fork of E4 with some breaking changes as well.
A helloworld for all three, however, would end up being identical (I'd have to look up some syntax; it's been a while... :) )
So, Euphoria 3 / RapidEuphoria is no longer under development? I'm asking because the download links (for all three) include the version number, so I'll have to figure out a way to always fetch the latest version.
OK, thanks - E3 and E4 both seem to work for basic test programs.
And yes, as I understand it, E3 - rapid...'s - isn't under active development any longer, though there's plenty of legacy code out there in the community that would break under E4 (open...'s) (which is why E3 hasn't been withdrawn).