Moving from django 1/python 2.7 was quite painful but possible and now they're suggesting that third party developers stop supporting django 2.2? It was released in April this year!
I know I'm not using any new django features that weren't there in 1.0. I imagine most django users are the same. I'd love to just have a LTS with security updates and conservative non-breaking changes.
The current LTS (1.11) ends in April 2020, which gives you a little more than 6 months to upgrade current projects to 2.2.
Prior to 2.2, so they encourage keeping support for the Django 2.2 LTS.