We've not yet moved to U20 LTS due to block on the upgrade path - but I
note that after downloading and testing the same on U20 20.04 TLS, the
behaviour of uuidgen has changed

uuidgen --namespace @dns --name 'foo' -m
3f46ae03-c654-36b0-a55d-cd0aa042c9f2

So clearly this has changed between the V 2.34 on U20 and V 2.31.1 on
U18.

This is all rather unfortunately as these are supposed to be
deterministic.  Should I expect that the behaviour of uuidgen to change
on the older LTS versions? Or does the LTS status indicate that this
different version wouldn't be backported?

As long I know how/when these uuid's are generated I can work around it
(or just use sha1 versions).

Thanks!

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https://bugs.launchpad.net/bugs/1892516

Title:
  uuidgen possible problem with v3 uuids

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