Marcel Taeumel uploaded a new version of Kernel to project The Trunk:
http://source.squeak.org/trunk/Kernel-mt.1507.mcz

==================== Summary ====================

Name: Kernel-mt.1507
Author: mt
Time: 15 March 2023, 3:25:15.389667 pm
UUID: e1a59e7b-7610-c742-a073-d58d25e80ed0
Ancestors: Kernel-mt.1506

Move robust removal of uni-classes from EToys to here.

=============== Diff against Kernel-mt.1506 ===============

Item was added:
+ ----- Method: ClassDescription class>>cleanUp: (in category 'class initialization') -----
+ cleanUp: aggressive
+ 	"Nuke uni-classes when aggressively cleaning up"
+ 
+ 	aggressive ifTrue:[
+ 		Metaclass allInstancesDo: [:meta |
+ 			meta theNonMetaClass isUniClass ifTrue: [
+ 				meta theNonMetaClass removeFromSystemUnlogged]]].!