Merge branch 'prepare-1.9' into 'master'

Prepare 1.9

See merge request !137
3 jobs for 98-saving-statistic-missed in 26 minutes and 46 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #50744
linux
build-linux

00:18:51

passed #50745
win
build-win

00:26:44

 
  Deploy
manual #50746
conda linux allowed to fail manual
deploy-devel