The general idea is an email is sent out saying "new snapshot deployed please build with -U" - here is what that means:
- build using the -U option
If you are working on uDig there is an extra step; you need to run the libs refres.xml script which will use a "maven ant task" to pull the changed jars in for your.
Documentation harmed in the making of this post:
- Working With Others (GeoTools Developers Guide)