Yes, I know about IronPython 3 compatibility, but that is from two years ago. I was searching on the internet but couldn't find any information on this that is up-to-date.
So does IronPython support Python 3? If not, how many of the future imports work, and are there any Iron-specific ways to make it seem more like Python 3?
IronPython 3 is once again alive. An alpha for Python 3.4 was released in April 2021. It is a very active effort which is being supported by the .NET Foundation. More here: Python 3.4 Release Notes