On 10/04/17 13:39, Jonathan Wakely wrote: > On 10 April 2017 at 10:41, Toebs Douglass wrote: >> Aren't they missing out on improvements in those libraries, by doing so? > > GCC doesn't use everything in those libraries so most improvements in > them are not relevant to GCC. The things it uses are known to work > fine. If GCC starts using a new feature from one of those libraries, > or something it uses turns out to have a bug, the required version > will be updated appropriately. That makes sense of the situation. Thankyou for explaining.