@LaurentG, thank you for staying on the ball and providing continuous /e/ OS 9-pie updates.
But why microG Services Core version 0.2.10.19420 could not be upgraded to the current version 0.2.12.203315 (error message in TWRP), I could not find out yet.
With version /e/ OS e-0.12-o-2020093076269-dev-herolte it worked. Also Warn App StopCovid France runs …