Embarrassingly basic question: 1.11.2 vs 10.4.2 Development Bundle? UI

Embarrassingly basic question: 1.11.2 vs 10.4.2 Development Bundle? UI

Disclaimer: I am a complete newbie to coding so apologies in advance if I'm missing something obvious.

Background: I am using Netbeans to start learning to develop websites. I want to use JQuery in my project. The Netbeans documentation on JQuery instructs to download the development bundle to add it to the project library. OK, so far, so good.

Here's where I'm confused: if I download JQuery 1.11.2 using the Download Builder at  http://jqueryui.com/download/, the extracted files do not appear to include, e.g.,  jquery.ui.accordion.js  and other similar files--but when I download the development bundle for 1.10.4 at  http://blog.jqueryui.com/2014/01/jquery-ui-1-10-4/  (i.e, the  http://jqueryui.com/resources/download/jquery-ui-1.10.4.zip  link) it has a ton more files (700-some versus a few dozen in the 1.11.2 download), including the ui ones that are nowhere to be found in the 1.11.2 download.

So, my question--basically--what am I missing? Is there a development bundle for 1.11.2? Should I use  js/jquery-1.11.2.js   and then the jquery.ui.[widget].js files from the 1.10.4 download? Should I just ignore 1.11.2 and use just all 1.10.4 files? If so, just curious, but what is 1.11.2 all about, when would I use that?

Thanks in advance for guidance!