All the docs are in the docs directory - READ them!!!
If you are upgrading from 6.7.xx to 6.8.xx, you will need to recreate your info files. You do not need to re-backup.
If you are upgrading from versions earlier than 6.8.0a10, then you will have to edit your backup sets. See the FAQ for details on how to do this.
PLEASE NOTE THAT THE CURRENT VERSION OF TAPER IS MAINTENANCE MODE ONLY -
I AM WORKING ON A 64 BIT VERSION THAT IS ARCHITECTURE INDEPENDENT AND HOPE TO RELEASE IN THE NEXT FEW MONTHS
I WILL CONTINUE TO SUPPORT THE 6.9x SERIES WITH BUG FIXES. ALL THE NEW FUNCTIONALITY WILL BE IN 7.0