This also touches on a really important point -- all this takes place in a context. What is the context? One context -- sometimes there are exciting new features! Another context -- this issue is mostly about users who want to build your software from source (this isn't a problem for you, as such), but who don't want to download a new copy of the compiler to do that. Is this a large group of users, if you're not a library? I don't think so.