[Kaiyou]

Right, but in engineering it's kind of expected to get support for a version for at least 60 years. Software engineering is just really weird in that it moves so fast and nobody seems to care to break things.

[ZWoz]

They (in engineering general) aren't expected support something free though. Putting it another way: You can get you support with Python2, if you pay.

[joshuamorton]

What free things are supported for 60 years in engineering applications?

Name one.

[greglindahl]

Fairly ancient Fortran compiles OK in open source compilers. Not quite 60 years old, yet, but it'll be there soon.

[TheRealKing]

It's already >65 years old. The 65th birthday was this summer 2019.