[Pharo-project] [regression reporter]regression occurred

https://ci.inria.fr/pharo/job/Pharo-3.0-Update-Step-2-Validation/./label=win... 3 regressions found. Tests.Release.ReleaseTest.testObsoleteBehaviors Tests.Release.ReleaseTest.testObsoleteClasses Tests.System.OSEnvironmentTest.testAtPut