US Patent 9588876 Estimating likelihood of code changes introducing defects

Information about a failed build of a computer software project under development can be accessed, where the information describes symptoms of the failed build. Committed change collections can be identified as collections that were committed since a previous successful build of the computer software project. Also, respective scores for the committed change collections can be produced. Each score can represent an estimate of a likelihood that an associated one of the committed change collections is at least a partial cause of the build failure.