I received the following information from DayCare:
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The information has been verified for AEM6 SP1:
The jQuery library used is version 1.11.0. This is included as part of the clientlibs rendering for the UI under - '/etc/clientlibs/granite/jquery/source/1.11.0'.
The bootstrap JS used is version 3.1.1. This is included as part of the clientlibs rendering for the UI under - '/etc/clientlibs/fd/af/third-party/javascript/bootstrap.js'.
We don't include angular JS as part of our clientlibs rendering for the UI. There are also no direct embedding of the angular JS within the product except some sample components that explain how this is done for mobile components - 'Eg. /libs/mobileapps/components/angular'.
The less compiler used is version 1.3.3. This is included as part of the clientlibs rendering for the UI in Adobe Granite UI Commons bundle.
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They also mentioned the following:
"We don't restrict you to use any other versions required that are directly imported into your project but you shouldn't replace the ootb one because many features may depend on it. Eg. you can use jquery within your own project /apps/<project> for your own project implementation but NOT replace the jquery libraries directly in the /libs."