The build number identifies each product version
Each new version of the product is identified with a build number. A typical build number looks like this:
394.0.1
Build Number Segments
The build number consists of three digital segments:
Segment 1 = Build Number
The first segment identifies the 3-digit build number. Each build is a major release with significant new product features. A build typically requires administrator tasks and includes new educational materials.
Segment 2 = Service Pack Number
The middle segment identifies a single digit service pack number. A service pack is a minor release with product improvements. Service packs typically do not require administrator tasks.
Segment 3 = Hotfix Number
The final segment identifies a single digit hotfix number. A “hotfix” release consists of one of more high priority bug fixes.