New hard drives being added to the HCL

And I guess that's kind of my point. Those of us who've been around a while have seen these things emerge slowly. But over time we forget. And how folks who've had devices but weren't really active in the forums are reaching a point where they are upgrading. Where do they go to see the list of gotchas, limitations, etc when upgrading? And, no, no one is realistically going to go all the way back to 4.00c1-p1 release notes to read about issues/limits when upgrading. And some of these limits span architectures. It's quite a mess, really. But a simple enumeration in a document (perhaps the HCL, or at least referred from it, esp for disk drives) would be SO helpful.