There is a new Edition of the Package 3 specification. This new edition features
Enhanced Push Setup and Datanotification to include confirmed push:
Push Setup IC version 2 now employed
DataNotification Confirm xDLMS service
Revised MBus Operations:
MBus Client now version 2
Enhanced security options
Enhanced firmware update
Application of more recent reference documents:
Blue Book 15
Green Book 9
EN 13757-7:2018
EN 13757-4:2019
An excerpt is available on the downloads page