As a consumer of the enterprise_html dumps, I came across a large and surprising drop in numbers between the 2023-06-01 dump and the 2023-07-20 dewiki-NS0 dump. The most obvious difference is that the 2023-06-01 dump included a total of 2,988,697 pages and the 2023-07-20 dump included 2,137,879 pages. For comparison, [[ https://de.wikipedia.org/wiki/Spezial:Statistik | w:de:Special:Statistics ]] reports 2,840,668 content pages and `mw.config.get('wgContentNamespaces')` reports that only NS0 has been counted, so this number should have matched the dump size. Debugging my own code revealed that my 2023-06-01 page count was likely inflated by 142,425 duplicate rows, but this still doesn't come close to explaining the full difference.
I would like to read a comprehensive change log of anything that may have affected these dumps, so that I can be confident about the data quality. This should be discoverable from the dump indexes such as https://dumps.wikimedia.org/other/enterprise_html/ .