The message has been copyedited and sent to translators by @Whatamidoing-WMF.
I'm now going to post the messages to the newcomers on some wikis.

I've queried recent changes for "Learners" on talk pages. I had a limit to 500 edits within the last 30 days. Sometimes the query only gave too few results. I've capped the query to 100 newcomers to avoid flooding.

The message has been sent to:

• fr.wp (100 newcomers)
• ja.wp (100 newcomers) - with a title in English due to a bad copy-pasting
• ar.wp (78 newcomers)
• no.wp (21 newcomers)

To be continued with other languages.

@Trizek-WMF

• Is the target audience still "users who have more than 10 edits and less than 50" Or is the target now users who have made less than 500 edits in the last 30 days?
• Is the limit going to be capped at 100 newcomers per site?
• Does it still target users who have made an edit on talk: or usertalk:?

In T218799#5048644, @TMeadows wrote:

• Is the target audience still "users who have more than 10 edits and less than 50" Or is the target now users who have made less than 500 edits in the last 30 days?

users who have more than 10 edits and less than 500 and who posted on a talk page (whatever the technology used there)

• Is the limit going to be capped at 100 newcomers per site?

No. If we need to have more, we can have more.

• Does it still target users who have made an edit on talk: or usertalk:?

Yes.

Sent to 80 newcomers from Polish Wikipedia.

Sent to 38 active users on Thai Wikipedia (learners + experienced editors).
Sent to 101 newcomers on German Wikipedia.

Sent to 94 active users on Dutch Wikipedia (learners + experienced editors).
Sent to 109 active users on Spanish Wikipedia, Wiktionary and Wikisource (learners + experienced editors).