Active package versions
TL;DR
You can now mark specific versions of a package as inactive to exclude them from the version options in pip. This can be done either manually or automatically.
What's changing?
As of 28/09/2019, its now possible to mark a version of a specific package as inactive. Marking a version as inactive means that this version will no longer be available to download/install via pip.
How does it work?
You can toggle a version's active status by clicking on the green tick in the package view's version list. Alternatively, you can use the package settings to manage active versions automatically. Refer to the docs for more details.