The "c4b" (short for ) release of Delphi Autocom 2021.11 is a popular custom version of the diagnostic software known for its stability and specific feature enhancements over the standard or older versions.
Officially, Delphi stopped releasing major updates for the C4B series in mid-2022. Version was the last, but it was buggy. Therefore, 202111 is the last stable release for C4B .
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