I am trying yet again to upgrade my 4.1.8 store--this time to 4.5.5. I never try to patch/upgrade. I am doing a clean install of 4.5.5.
I have many orders and registered customers and want to transfer the data to my new store. I know the blowfish keys for each installation must match in order for the data to transfer properly. In the past, I have just copied the blowfish key of my live store to the config.php file of the new installation (BEFORE transferring any data). After that, I copy my admin profile from the old store's DB to the new DB and everything seems fine--I'm able to log in to my new store.
However, 4.5.5 adds some new keys to the config.php file and you state here that further changes/enhancements have been made to the blowfish key. This has me worried about manually changing the blowfish key in my 4.5.5 config.php file. However, if I don't change it, how can I transfer my customer/order data?