Hi, I created the first versions of the jobs that should lead to Pharo 4 partial bootstrapping based on configurations: https://ci.inria.fr/pharo/view/4.0-Bootstrap/ [1] We are able to load configurations with SUnit and KernelTests. ConfigurationOfIDE currently does not work [2]. We should focus on better testing of the basic image. Unfortunately Tests package is one big bundle. We should move at least this categories to different or standalone packages: Tests-Bugs Tests-CodeImport Tests-Compression Tests-Files Tests-Finalization Tests-Object Events Tests-ObjectsAsMethods Tests-System Tests-System-CommandLine Tests-SystemChangeNotification Tests-SystemTests-Support Tests-Traits Tests-Traits-MOP Tests-VM Cheers, -- Pavel [1] https://ci.inria.fr/pharo/view/4.0-Bootstrap/ [2] http://forum.world.st/ConfigurationOfIDE-and-issue-12601-td4759150.html