That is discutable, but it's hard to find evidence on which compilers are the most used (I'm thinking also about the Metrowerks, Borland and Intel compilers).

 

Yes but what I meant is that you chose to work with that constraint, I did that and don't want to anymore because it just kills improvements for everybody to not being able
to at least try see what's the cost of upgrading a compiler. 

 

Tell that to Facebook.

Ok I guess it's a recent company, but it's not small. The point is that the real problem is more the availability of C++ programmers that knows enough to 
improve the situation constantly, and the willing of managers to empower them to do so.
It have nothing to do with team size.
I've seen startup go exactly the other way just because keeping the tools at old stable versions is what the technical director is used to.
It don't mean it's bad or not. 

It just mean time of implementation in most compilers is not a argument "in general" if you prefer.