[Pharo-dev] Stability of configurations

I would like to know your opinion on the following issue: Some supposedly stable published configurations are not loading properly. I read once Stef or someone else commented about validating configurations. I agree completely with such idea because guarantees quality. For example I tried to load Chalten stable (.13) in Pharo 4 and a modal window display this message: This package depends on the following classes: MinusInfinityClassTest ArithmeticObjectIntervalTest InfinityClassTest You must resolve these dependencies before you will be able to load these definitions: testAsTimeSpan testDaysMeasure testDaysMeasure So, the package is stable but not its configuration? Is this issue on the table for Pharo 5? Hernán