Comment 1 for bug 1992512

Yeah, this is something I have noticed alread. I created a ticket internally to get it fixed "soon", but you're right in that there's nothing in Launchpad yet.

To your questions, this is my current thinking, but could change if needed:

For v1, the config won't change. We'll render the appropriate routes instead. For v2 not Ubuntu, we'll deprecate but still support it while probably throwing a warning for the old version. It's a little trickier for Ubuntu since we passthrough netplan config. On Ubuntu, I don't see us supporting the deprecated keys any longer than Netplan does. As far as timeline, we should have a fix ready by 23.1.