If the plugins didn't use jQuery() at all, the plugins are not jQuery verified and shouldn't be used until fixed by the author.
The new Dragonfly library uses 'Poodle' as global object.
Any js file in Df should use Poodle.$() and not $() as well to prevent issue with conflicting libraries.
It is possible (just like with jQuery) that we forgot that somewhere.
However, Poodle library is more advanced then jQuery as it extends objects in the core instead of creating a wrapper around it.
Due to that it is much faster then jQuery with the same base features.
Poodle is slower on IE7 due to the fact that IE7 is missing loads of very important features.
On the other hand IE7 should never be used and people must upgrade to Firefox/Chrome or update to IE8.
Sure many banks still use IE6 but should be discouraged heavily to use those computers for the internet.
With this said, a big part of jQuery v1.x has become obsolete and that's why they now have a v2 that is becoming similar to my Poodle.js
Server specs (Server OS / Apache / MySQL / PHP / DragonflyCMS):
Fedora 25 / Apache 2.4.27 / MariaDB 10.1.26 / PHP 7.1.10 / Mercurial