~50% divorce rate is dated information, it's much lower and decreasing [0]. There's also the fact that the divorce rate amongst the college-educated (which I assume includes the software developer in question) has always been much lower. Something else that throws off divorce statistics is serial divorcers, a significant cadre who have divorced two or more times.

[0] http://www.nytimes.com/2014/12/02/upshot/the-divorce-surge-i...