Solaris 10, scheduled to be supported until January, 2021, can still run BSD binaries built for Solaris 1 (a retroactive name for SunOS 4.1), released in 1991. I wonder for how long the apps we wrote for our iPhones back in 2008 – the ones we had to pay $99 even to run on our own devices – will last.
APPropriate Behaviour
The book about all the things software writers do that aren't writing software.
FSF
