I had Mediawiki serving our public help pages for like a decade on GoDaddy. No changes or updates of the content or version since 2019. Just recently (like mid February) I have noticed that pages looks wrong. First of all Gallery blocks instead of in rows showing images in the single column. Then page index widget is shown as a paragraph instead of a textbox in the corner. Preferences page lost the CSS completely. Breadcrumbs looks different.
Checked logs - nothing new. Checked css files the timestamp is from 2019.
What could cause that? Hacker? Hoster engine update? Database corruptio