There is a legacy application at my company built on Ember.js 1.6 Ember Data 1.0.0-beta.8.2a68c63a Handlebars 1.3.0 jQuery 2.1.1
Obviously this application should have been updated with newer versions of Ember.js, Ember Data, Handlebars, and jQuery over time. At this point our InfoSec team is requiring that we update jQuery from 2.1.1 to 3.X due to security issues in jQuery 2.X. I updated the application to use jQuery 3.5.1 and received the following error Assertion Failed: Ember Views require jQuery between 1.7 and 2.1
I know that in Ember 3.X the inner dependency on jQuery was removed.
I have reviewed the deprecations in Ember from 1.6 until the latest version 3.16.6 At this point my company won’t allow us to rewrite this application so I am trying to prepare the tasks required to migrate to Ember 3.X.
Does anyone have any background in upgrading from 1.X to 3.X and gotchas to consider? Any information you are willing to share is appreciated.