Comment 90 for bug 1872159

Because an update to a long term release potentially affects millions of users, it needs to be done slowly and carefully...

> Packages in -proposed can be moved to -updates once they are
> approved by someone from sru-verification, and have passed the
> minimum aging period of 7 days.

[https://wiki.ubuntu.com/StableReleaseUpdates]

So it should qualify for -updates in the next 1 or 2 days.