EIOPA has published an updated list of validation rules and a List of known issues document | EIOPA
The revisions are concerned with the Solvency II taxonomy 2.4.0 and the PF taxonomy 2.3.0.
Validation rules have been deactivated and 5 new items added to the List of known issues document
More information from EIOPA's website
The updated validation rules are available in the reporters’ test environment on 3 January 2020.