[dnlrn]

Depends on what kind of production you mean. In your own projects you should set the C++ standard yourself anyway so this is a non-issue. If you are a distribution maintainer, it probably means you have to patch some makefiles that assume that gcc always compiles with c++98

[cm3]

This will be fun (not) for distributions. Clang and G++ also seem to be slower when a newer C++ standard is enabled. I don't really buy the argument that changing the default will help new users who want to use C++11 features. Why not make C++14 the default then?

[Kristine1975]

>Why not make C++14 the default then?

I might be misunderstanding something, but gcc 6.1 does make C++14 the default.

[cm3]

No, you're right, I misread it.