Upgrading flask-based project from flask v.0.12.x to 1.0.x I realized that
Flask itself doesn’t ready for upgrades yet.
There is no documentation about 0.x -> 1.0 upgrade at all. There is
some documentation about
upgrades prior 1.0 but nothing about 1.0 at all!
Change log isn’t helpful a lot.
It’s one more argument to use Django instead of Flask. It has great
with detailed backward incompatible
and deprecation sections.