It's also happening on es.wiki. Font size seems bigger than before, too.

Thanks for taking the time to report this. Could someone please explain where to see a "Patrol button" in the screenshots, and provide links where someone else can see a problem? @Jonathan5566: Please see https://www.mediawiki.org/wiki/How_to_report_a_bug - thanks!

Also happening on nl.wiki. It's even worse on category pages, where it appears just below mw-parser-output. I don't remember whether it appeared just above or just below catlinks, it used to be somewhere at the bottom, on the right side.

It used to be below the category links on nl-wiki, and on the *left* side indeed.

In T288799#7281405, @Aklapper wrote:

Thanks for taking the time to report this. Could someone please explain where to see a "Patrol button" in the screenshots, and provide links where someone else can see a problem? @Jonathan5566: Please see https://www.mediawiki.org/wiki/How_to_report_a_bug - thanks!

This happens on all new articles that haven't been marked as patrolled.
Current example: https://nl.wikipedia.org/wiki/Lijst_van_straten_in_Den_Haag (but when someone patrols the page, this isn't valid anymore).
Affected pages are shown on this page: https://nl.wikipedia.org/w/index.php?title=Speciaal:NieuwePaginas&hidepatrolled=1

It's <div class="patrollink" data-mw="interface"> that this issue is about.

Change 713033 had a related patch set uploaded (by Majavah; author: Majavah):

[mediawiki/core@master] Include mediawiki.actions.styles with patrol link

https://gerrit.wikimedia.org/r/713033

Change 713033 merged by jenkins-bot:

[mediawiki/core@master] Include mediawiki.actions.styles with patrol link

https://gerrit.wikimedia.org/r/713033