Updates from a previous version are not transparently supported. If you used the store as is without modifications other than HTML pages you can back up your datafiles and install the new version ontop of the old one. Copy your data files back in, then run a data file structure update that will create a new updated structure for your tables. For the online application you can do this from the Administration Page using the Update Structures link. Do this before you perform any other operations!

If you made changes to the code of the store, it's not very likely that you can easily upgrade to this later version. There have been interface changes to a few of the class methods, but overall the functionality remained intact.

Remember that this application is presented as a sample application - as such you will most likely customize the code for you own needs by extending the business object classes and adding additional functionality. This is as it should be, but there won't be guaranteed backwards compatibility in future versions.