@ Ha, well, I don’t exactly have any insider information, but yes, I mean Epic’s GItHub. If you compile the latest ue5-main, it does indeed say 5.1.0 
I’ve decided that we’re just going to wait for official UE 5.0 release (and for the plugins we’re using to be updated too) before upgrading our project, especially now, because you’re the second person I’ve heard from that Epic already being on 5.1.0 internally (since at least Jan. 22nd which is when I first downloaded it) means 5.0 could be very close to release now.