Hello!
My server host is changing our current PHP5.3 install to PHP5.5 for security fortification among other things. I am currently using CE1.9.0.1 and have transitioned the test server to my own personal server which I changed to 5.5 to see if I could view any possible problems I may run into, with nothing showing. Possibly a good sign, however just to be sure, I thought I would come check with the experts to see if they know of anything I may be trying to look out for or if any of these changes even affect any of the inner workings that Magento uses.
I see in some of the changes from 5.3 to 5.5 are;
- Magic Quotes removed
- session_is_registered(), session_register(), session_unregister() all removed
- pack() and unpack() changes
I don't know a whole lot about the backend of the system as I am more graphic designer than full stack (for now 
). So any insight would be greatly appreciated. Thanks!