Within limits. It should be a version thats supported and gets at least security updates. Hopefully the one(s) in Fedora follow this.
Yeah it's 1.11 now which is LTS, since it'll be the last version to support Python 2
There are a few flask rest frameworks, but I have not much idea how well they are supported or work. https://github.com/flask-restful/flask-restful https://github.com/noirbizarre/flask-restplus
Yeah I tried those in my search for something like DRF in the Flask world. They are decent, but far from DRF feature-wise.
A.