Well, things change, especially in tech. For better or worse, but most of the time for the better.
You should read some changelogs of past python 3 releases. 3.6, for example, has ordered dicts by default. Which is quite convenient when you need to write test testing a small dict with two items for example.
I like driving an old muscle car, most of m look beautiful and bring me everywhere i want. But damn, those new cars changed a lot and are much more comfortable. (But they do break as much ;))