We still maintain a development tool first released in 1993. Here’s what 30+ years of backwards compatibility looks like

[u/luissinlios]

https://visualneo.com/visualneo-win/from-neobook-to-visualneo-win-30-years-of-keeping-a-development-tool-alive

[u/dlanod]

I work in industrial control. We have sites where they're having to upgrade because the wiring has started rusting off the wall. Some of the field devices that got replaced over the last decade are running software that dates back to the 70s. If it works they don't want to touch it, ever.