Whats new updates for v3.12.0rc0 .

[pp-mo]

Release notes for v3.12

[ESadek-MO]

Thanks @pp-mo, lgtm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.80%. Comparing base (a09eba1) to head (22fd22c).
Report is 1 commits behind head on v3.12.x.

Additional details and impacted files

@@           Coverage Diff            @@
##           v3.12.x    #6362   +/-   ##
========================================
  Coverage    89.80%   89.80%           
========================================
  Files           90       90           
  Lines        23752    23752           
  Branches      4418     4418           
========================================
  Hits         21331    21331           
  Misses        1672     1672           
  Partials       749      749           

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