IM2-I529 - Approval Rules and Approval groups when either Deleted or Archived will now appear in the Recycle Bin and Archive Vault respectively. Any records can be permanently removed from the system or restored if required.
IM2-I546 - Types Type layouts have been introduced, you can now have differing layouts per Task type if required.
Alerts - We have tightened and updated the behaviour of Alerts, please refer to this article that explains all Alert behaviour. if you are using Alerts then it is a good idea to read through this document as there may be some changes that affect your way of working or some new features that you might find useful.