Hi, Today's checkin contains an upgrade from FFmpeg 4.1.4 to 4.2. No problems are expected in this area and probably later today the patch to use dav1d will also be checked in, but are still working out the logistics and might have some questions. The 3 week delay since the previous checkin was due to many, many problems coming up with a method and strategy to speed up Feathering (mostly)in Masking for both OpenGL and X11 software driver variations resulting in the same looking output. Any additional minor or major testing would be appreciated! Ubuntu16 test build will be available later today. I did not know that this Masking change was going to take nearly this long, so any commitments to address other issues that I made are no longer going to happen as I had planned. Oh well. Phyllis/GG