[MM3-users] Re: Join a Mailman 3 list?

I think this is the thread where they're posting updates on the remaining issues:

https://support.cpanel.net/hc/en-us/community/posts/31032467176087-Mailman-2...

And the changelog is here:

https://docs.cpanel.net/changelogs/126-change-log/

Personally, I'm staying on v124 for now, but if your preferences are set for automatic cPanel updates, it may be too late. Unfortunately it can't be rolled back.