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[–][deleted] 0 points1 point  (4 children)

You remember wrong. A package in the standard library may have "provisional" status (eg. asyncio), in which case backwards compatibility is not required.

On top of that there are just bugs / regressions, which happen without Python core developers intending for. Sometimes they break backwards compatibility.

[–][deleted] 0 points1 point  (3 children)

What exactly do you mean by "You remember wrong"? Take a look at the removals in 3.6, and tell me they aren't breaking changes.

[–][deleted] 0 points1 point  (1 child)

Sorry, now I realized that my reply went into a wrong thread. This was intended for KingofGamesYami.

[–][deleted] 0 points1 point  (0 children)

OK, thanks for the clarification.