Why not 230-2020-12-01 to avoid the awkward 'US order or 'most-of-the-rest-of-the-world order' issue?

Edit: the great irony is that your example included an error which I then reproduced! Obviously, 1st jan is unambiguously:

230-2020-01-01

If you were representing 1st dec, though, I’d suggest:

230-2020-12-01

Actually I was trying to avoid the US date standard myself, then got confused and wrote a date that follows no standard that I know of. My mistake entirely.

230-12-01-2020 to mean the 230th release since the start of the project, made on January 1st, 2020.

Surely this is either released on the first of December or the 12th of January?

That's just US date trolling.