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.
Compound of English loanword ビルド (build) and 番号 (number).