Why do projects opt to stay on an older framework version of the .NET Framework? For example, staying on .NET Framework version 3.5 which was released in 2007 instead of upgrading to the latest 4.5.1 ...
I have been working with .Net for 7 years. ASP Web Apps, Windows Forms, Windows Services, mostly done in C#, but some in VB.Net. And as we started to work with .Net 1.1, we stayed on .Net 1.1. ...