Update switcher versions and make 0.4.0 stable

[jackgerrits]

Wait to merge

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.60%. Comparing base (4dab09c) to head (9fb8ab5).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4940   +/-   ##
=======================================
  Coverage   68.60%   68.60%           
=======================================
  Files         156      156           
  Lines       10053    10053           
=======================================
  Hits         6897     6897           
  Misses       3156     3156           

Flag	Coverage Δ
unittests	68.60% <ø> (ø)

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