I'm looking around, and found a lot of VCE's, but none of them seems to be valid since beginning 2017.
Can someone let me know what VCE or PDF can still be used?
I'm going to sit the exam next week.
There are none at this time - the exam was given a major rewrite last September and is constantly evolving so none of the dump providers are able to get the info and are not interested in puting the effort into it now.
Sorry, but you'll need to rely on studying the latest variations of the material and using old dumps to make sure you know the principles.