This issue tracks possible removals and other breaking changes we want to include if the next release (or the one after that) will be a major release. (That does not mean that the changes listed here cannot be included in a minor release after a decent deprecation period.)

Please add a comment if you have concerns or would like to include another pending breaking change that is not on the list.

Background & Motivation

As support for PEP 621 is slowly taking shape (see #9135 to track the current state) and this will be a big, significant change (even if the old way will still be supported), this might be the time for a major version bump. Even if we try to avoid obvious breaking changes, just not ignoring the project section anymore will be a subtle breaking change for anyone who is already using this section (for whatever reason). Further, since supporting PEP 621 requires massive changes in many areas of the code, the risk of unintentional breaking changes is higher than usual.

Long story short: If we do a major version bump anyway, we should make use of it and remove things / add breaking changes we were holding back so far.

Candidates

Disclaimer: decision is not final and might be subject to change