DBpedia dumps are based on Wikidata dumps from March
Here is the drift from DBP from Mar to current WD: 5882410 WDid-DBP.ttl 6255943 WDid-WD.ttl 763951 differences 12.7% 195209 removed lines 568742 added lines If anyone cares, I can put up the diff file somewhere.
"Removals" include - redirects, like !Bang! -> Funking_Conservatory - renaming, e.g. $O$ -> $O$_(Die_Antwoord_album) Or "It"_–_The_Album -> "It"_the_Album - renaming by removing qualifier, e.g. Centrify_(software) -> Centrify - changing Q number, e.g. "Babbacombe"_Lee Q4540274 -> Q1401456
Looking at the file confirms what Dimitris implied: changes are the result of normal editorial actions. Both files include Template: and Category: pages.
But 12.7% changes of page titles or Q numbers in 3-4 months is a lot!