noun
build number
In software development, a unique identifier assigned to a particular compiled version of a program, often incremented with each build.
このアプリのビルド番号は昨日の更新で1000を超えた。
This app's build number exceeded 1000 with yesterday's update.
バグ報告には、OSのバージョンとビルド番号を記載してください。
Please include the OS version and build number in your bug report.