[masklinn]

> All of those things could have been done in Python 2.8

The first one is in 2.7 (it's completely backwards compatible). The division is in 2.5 or 2.6 imported from __future__. #4 skirts the line, new keywords have been added in point release in the past. #2 wouldn't fly.

But here's the thing, P3 was not about these (or not only about them), they got bundled in because P3 was allowed to be significantly backwards-incompatible and thus a lot of changes became acceptable which were not justifiable or much harder to justify in a point release. The primary breakage point of P3 is not any of these, it's the string changes.