News for hackers. Stuff that matters.
Re:The default Python version on Heroku will go from 2.7.13 ... by ubernostrum on Saturday June 10, 2017 @05:49AM (#14526779)
A better headline would be that the default for newly-created applications will switch.

Existing applications on Heroku will not have their Python version changed.

Re:The default Python version on Heroku will go from 2.7.13 ... by huxley on Saturday June 10, 2017 @07:38PM (#14529835)
I wonder if you'll still be able to set the Python version explicitly in the runtime.txt file
Re:The default Python version on Heroku will go from 2.7.13 ... by paulddraper on Saturday June 10, 2017 @11:20AM (#14527651)
I assume that's what is meant by "default".