I think this weird thing happened with Python 2. I believe Python 2.6 (Oct-2008) was the last "feature release" and 2.7 (Jul-2010) was intended as a bridge. S

I think this weird thing happened with Python 2. I believe Python 2.6 (Oct-2008) was the last "feature release" and 2.7 (Jul-2010) was intended as a bridge. So since 2008, 2.x users have been shielded from most all of the normal churn of any widely used language that's in active development. What I don't think people realize is that not only are you expected to move to 3.x, but you'll have to keep up or fall behind with new 3.x releases. During that same period (since 2008) 3.x has had 9 big releases. Of course that 2.x stability was done with the assumption you'd move to 3.x and isn't sustainable for PSF indefinitely.