OFN uses AngularJS 1.5.
After version 2.0 AngularJS was renamed to Angular.
LTS for Angular version 4 ended on September, 2018
Angular is now on version 7.
This is obviously a major problem in terms of maintaining up to date frameworks and libraries in OFN.
I believe this has not been discussed in the community so far.
An alternative better seen by most current developers (but not obviously the easiest or the best) is to drop angular and pick a new framework like React to build the OFN frontend.
Not an easy decision, but we recently agreed we need to raise this topic for awareness…