Is it ok to simply change the PayPal Express API version number?

Question

I'm dealing with a shopping cart system that doesn't really stay updated with the changes to PayPal's API. I have the source code and am confident enough to add/change parameters for calls (e.g. for expresscheckout) -- but some of the things I want to do are only available in newer versions of the API.

The cart PayPal PHP code sets the PayPal API version to '76' right now.

Can I safely just change it to '112' - or do I have to carefully audit and test all the existing code? In other words, is it safe to assume that PayPal's newer API versions are backward compatible with older code?

Answer 1

Yes, you can upgrade the API version to 113 and yes it is backward compatible and supports all existing parameters.

Note : Check this link to see the deprecated parameters that should be avoided.