Systems and methods for improving the quality of a first software product. The methods comprise performing operations by a computing device to run the first software product having source code modified based on code coverage data gathered during testing of the first software product. The code coverage data identifies at least one first portion of the source code which was executed at least once during the testing and identifies at least one second portion of the source code which was not executed during the testing. The methods also comprise: automatically detecting when an execution of the second portion is triggered while the first software product is being used by an end user; and automatically performing a notification action in response to said detecting.