What does the last column of the build log output mean?

[ijustlovemath]

Build log files look like this:

<path to vi> 2022-11-23 14:39:17 49

What does the 49 mean? I know the date is the "last modified" time.

[drjdpowell · Accepted solution]

I think it is the VI's save Revision number. Goes up by one on each save.