Only 30? I'm not-maintaining a 20-year old app at the moment (that is, I should be maintaining it :P ) and it's pretty new by industry standards. There are some

Only 30? I'm not-maintaining a 20-year old app at the moment (that is, I should be maintaining it :P ) and it's pretty new by industry standards. There are some local apps that are 40 years old (I think there's some University software that was programmed in the late 60s), so I guess there must be 50-year old apps somewhere else :)