Loading Only New/Updated files to build machine for deployments

Reminder:  There is a "search the forum" box in upper right corner  (right below the "submit a question" box).
If you search for "load changed files", you'll get a lot of hits, including:
https://jazz.net/forum/questions/156743/loading-only-newupdated-files-to-build-machine-for-deployments
https://jazz.net/forum/questions/35214/exporting-changed-files-to-the-filesystem-when-building
https://jazz.net/forum/questions/74797/how-do-i-get-a-copy-of-all-changednew-files-in-project
https://jazz.net/forum/questions/39185/just-update-changed-files-from-the-command-line-lscm
As a summary, you can call the "lscm" command line from and to do what you need, and there also are some Ant tasks available.  See the above questions for details.