> With this release, can we immediately start using version 3? You should stick with 2.7 As mentioned in your linked blog post, porting Flask to Python 3 wasn'

> With this release, can we immediately start using version 3? You should stick with 2.7 As mentioned in your linked blog post, porting Flask to Python 3 wasn't the issue. The issue is the other libraries which you will use to build your web application which aren't on Python 3 yet. You can try to build a unified code base(runs on both 2.7 and 3) http://lucumr.pocoo.org/2013/5/21/porting-to-python-3-redux/ http://lucumr.pocoo.org/2013/5/21/porting-to-python-3-redux/