The last version, in which the messages appeared, was wmf.8. Marking as resolved.

There are two main options to go with this:

• Display the UIC button next to every user link, which is present in the content area.
• Add a mechanism to explicitly specify "render UIC button here" in the wikitext.

One user also suggested it to be 25 non-reverted mainspace edits if it's technically feasible.

All changes have been completely rolled back, so closing the task

Hi! A few minutes ago, I noticed that Logstash is spammed with logs related to "x4" key being undefined (subtask, T431989). I'm not sure if it's expected or not. If it's expected, please disregard it :)

The tagline has been reverted today to the standard one, but thematic files hasn't been removed from the server yet. Let's wait for a few days, in case browsers attempt to load the images from a cached filename.

The issue is fixed now and the fix backported. I also updated the database to fix the 14 broken log entries. A transcript of my changes to the DB is below:

The fix for this issue has been merged, I'll backport it today. In the meantime, I looked for the broken rights entries on Meta and found these:

In T429802#12098105, @OKryva-WMF wrote:

@mszwarc , can you add also instrumentation of the click of that link?

Marking as resolved, CI errors are gone

Thanks for the ping, Johannnes.

The logo has been deployed; I'll keep the task open to track restoration of normal tagline in 1-2 weeks.