Adjusted and combined your examples to a gif. The one with the red square is the Hack font.

http://i.imgur.com/8SqL6mT.gif

Aside from '_', 'i', '0', many of the changes are so minuscule that it feels more like a change for the sake of change. Some however are nice, like the parenthesis placement, cleaner 'r'.

One thing I really don't like is the change to a serif-style comma. They've probably argued that it improves readability, and prefer that over typeface consistency.

They should emphasize more the previous work they are using, otherwise they might come across as ... hacks.

I'll probably stick with inconsolata though. But good job, nonetheless.