switch to v4

[aler9]

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[codecov]

Codecov Report

❌ Patch coverage is 82.30769% with 23 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.40%. Comparing base (33ff3fc) to head (b1f370e).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
endpoint_custom_client.go	79.06%	7 Missing and 2 partials ⚠️
endpoint_udp_broadcast.go	57.14%	7 Missing and 2 partials ⚠️
endpoint_serial.go	75.00%	1 Missing and 1 partial ⚠️
endpoint_udp_server.go	75.00%	1 Missing and 1 partial ⚠️
endpoint_custom_server.go	96.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #266      +/-   ##
==========================================
+ Coverage   80.32%   80.40%   +0.08%     
==========================================
  Files         729      725       -4     
  Lines        7455     7284     -171     
==========================================
- Hits         5988     5857     -131     
+ Misses        836      798      -38     
+ Partials      631      629       -2     

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