1. Защо да не е интересна, това:

    Pre-emption in the scheduler

    In prior releases, a goroutine that was looping forever could starve out other goroutines on the same thread, a serious problem when GOMAXPROCS provided only one user thread. In Go 1.2, this is partially addressed: The scheduler is invoked occasionally upon entry to a function. This means that any loop that includes a (non-inlined) function call can be pre-empted, allowing other goroutines to run on the same thread.

    И 30% ускорение при енкодването на json сами по себе си са доста добри промени за minor release.

Трябва да сте влезли в системата, за да може да отговаряте на теми.