The cool thing about the various verions of UUID is that they're all compatible. The differences almost all come down to database locality (and therefore performance.)

The exception is if you're extracting the time portion of a time-based UUID and using it for purposes other than as a unique key, but in my experience this is typically considered bad practice and time is usually stored in a separate column for cases where it matters for business purposes.

Well, technically this is all about different versions of the same standard.

But no one ever said UUID v_ replaces all the others.

They aren't "versions" so much as variants.

It's not necessarily that its dismissive, more so that its that a fuzzy pattern-matching comment, thats incorrect, and just a wordless link. Trivial to make, nontrivial to respond to: "Funny", in the way in-group cultural references usually are - responding means you're taking it too seriously. Yet, incorrect enough that'll misinform anyone who isn't diligently reading the full article and understands historical context. Noise thats likely to generate noise. Trolling, just missing active intent to derail.