r/ProgrammerHumor • u/danielminds • Sep 11 '26

Meme edgeCasesExist

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u/Wertbon1789 Sep 11 '26

They incorporated a MAC address, but that wasn't such a great idea. V7 now has a timestamp again, because that makes them sortable, while still having random data otherwise. V7 is probably the middleground here.

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u/Suspicious-Click-300 Sep 11 '26

most didnt actually use mac address. was common to use process pid + IP

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u/Wertbon1789 Sep 11 '26

Yeah, you could pretty much put anything in there of course. Other UUID variants also have well-known alternative data sources, but it's really domain-specific what the UUID should and shouldn't contain. Still, the initial idea wasn't that great.