Nicolas Petton has announced that the third pretest for Emacs 26.2, Emacs 26.1.92, is out. I compiled and installed it yesterday and have been using it as my default Emacs since then. I haven’t encountered any problems so if you can, install it and help with the testing.
As usual, thanks to John, Eli, Nico, and the others for their hard work in getting Emacs 26.2 ready.