Re: SunOS 4.1.3 yeeuch.
I appreciate the sentiment. I only knew 7, and everything before it and after it was grief. Sometimes you want to tell developers to have a year off, step away from the keyboard, put down the knife.
You should maybe give seven a chance, you can have my books if you want because they are museum or landfill ready.
My last serious job interview was an offshoot of Sun in Linlithgow, I just got a flashback to the casually dressed young woman who greeted me, and it was for an offshoot developing a high density storage drive. The offshoot was blown away by a cloud.