Nicolas Petton has announced that Emacs 26.3 has been released and is available for download. I always compile mine by hand so I have no idea if the prebuilt binaries have appeared yet but compilation—even on the Mac—is simple and fast.
I’m writing this with 26.3 and haven’t encountered any problems. Of course, the release is a bug fix mainly, I think, to squash the problem with loading GNU ELPA packages that I wrote about previously, so I’d expect it to be rock solid or at least as solid as Emacs 26.2.
As usual, thanks to Nico, John, Eli, and all the others for their hard work in bringing us another release of our favorite editor.