TIL: 8 versions of UUID and when to use them | nicole@web
- UUID Version 1 (v1) is generated from timestamp, monotonic counter, and a MAC address.
- UUID Version 2 (v2) is reserved for security IDs with no known details2.
- UUID Version 3 (v3) is generated from MD5 hashes of some data you provide. The RFC suggests DNS and URLs among the candidates for data.
- UUID Version 4 (v4) is generated from entirely random dat