Commits on Sep 18, 2023

1. Add support for UUID version 7 …

   Although the specification for UUIDv7 is still in draft, the UUIDv7
   algorithm has been relatively stable as it progresses to completion.
   
   Version 7 UUIDs can be very useful, because they are lexographically
   sortable, which can improve e.g: database index locality.  See section
   6.10 of the draft specification for further explanation:
   
     https://datatracker.ietf.org/doc/draft-ietf-uuidrev-rfc4122bis/
   
   The specification allows up to 12 bits of extra timestamp precision, to
   make UUID generation closer to monotonically increasing.  This provides
   between 1ms and ~240ns of timestamp precision.  At the cost of some code
   complexity and a small performance penalty, a kwarg may specify any
   arbitrary precision between 0 and 12 extra bits.  Any stronger
   guarantees of monotonicity have considerably larger tradeoffs, so
   nothing more is implemented.  This limitation is documented.
   
   Ruby issue: https://bugs.ruby-lang.org/issues/19735

   

   nevans committed Sep 18, 2023
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