It's mildly tempting to support the 7.2.0 xsds, as that's the last 7
release. But if we're going to have any cutoff, IMHO keeping the rule
consistent with the mixed domain support cutoff is better. KISS.
Couldn't agree more with this. Lets keep things in line as much as possible.
7.2 users can upgrade to 8.2 and from there to 9/10.
So can we agree on dropping xsds/parsers and have cut-off same as for mixed domain so anything that is older than AS7.3 / EAP 6.2 is optional and can get dropped.