We have a new stable release candidate ready for testing.
Update 2020-03-23: new snapshot has been uploaded that supersedes 2020-03-07 SD card image.
snapshot-ev3dev-stretch-ev3-generic-2020-03-23.img.xz from here.
Changes since ev3dev-stretch R2:
brickrunrun with higher priority
If all goes well, this will become the new main download in a few weeks.