Upgrade 3.60 to 3.70 delete Tables

Hello! I have tested the Upgrade from Navision 3.60 to 3.70. with a Database including all add-ons. Now there are some tables concerning Payroll, which don’t exist in 3.70 (e.g. Tables 5009500, 5009501,…). Now what to do with these tables, can i delete them? Thanks for answers!