Flask == 0.11.*
Flask-SQLAlchemy == 2.1.*
Flask-WTF == 0.13.*

Flask == 0.12.*
Flask-SQLAlchemy == 2.1.*
Flask-WTF == 0.13.*

Use a slightly more recent version of Flask
Use a slightly more recent version of Flask

There is no longer documentation for 0.11, but 0.12 has documentation, and the webserver seems to work fine with 0.12 as well