Help with upgrading from 1.10.2 to 1.11.3

Help with upgrading from 1.10.2 to 1.11.3

Hello! I'm currently trying to upgrade from 1.10.2 to 1.11.3 and am running into some troubles. 

I work in a shared development environment so I unfortunately have to contend with other JS libraries occasionally conflicting with jQuery. To get around that (and because I was unawares of some solutions available to deal with that), I have always accessed jQuery using 'jQuery' instead of the $ alias, for example:

jQuery( "#my_tabs_div" ).tabs();

I suspect that has something to do with the following error, though I'm unclear as to why:

ReferenceError: jQuery is not defined

The searching I've done indicates that my above usage should still work, but perhaps I'm simply not searching for what I need correctly. If anyone can point me in the right direction, or explain why I might be doing things wrong (or ask for more information), I'd sincerely appreciate it. Thank you.

[ EDIT ] As per my response, I was dealing with a browser caching issue. All good now.