So, please move the EPiServer.DataAbstraction.Activities.Internal.IActivityTypeRegistry to public API as we needed it when creating custom activities to be able to register those (yes we can now, but the Internal namespace indicates to us that this could change without a warning).
Well the posts subject has the punch line :D
So, please move the EPiServer.DataAbstraction.Activities.Internal.IActivityTypeRegistry to public API as we needed it when creating custom activities to be able to register those (yes we can now, but the Internal namespace indicates to us that this could change without a warning).