COURSEPRESS TRANSLATION

Hello!

After updating on a new Coursepress Pro version I found 2 new source files: coursepress.pot and cp.pot. What's the difference between them? coursepress.pot contains 1658 items but cp.pot contains 1770. How can I use my old translation .mo+.po which has smaller size (contains total 1264 items) than a new version? I.e how can I synchronize old translated words with new version files? Thank you!