Add claiming support for 3.14 and testing against it

[yarikoptic]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.10%. Comparing base (7bf4b81) to head (5625432).
⚠️ Report is 13 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #128   +/-   ##
=======================================
  Coverage   96.10%   96.10%           
=======================================
  Files           2        2           
  Lines         385      385           
=======================================
  Hits          370      370           
  Misses         15       15           

Flag	Coverage Δ
unittests	96.10% <ø> (ø)

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