Runtime changes:
- New GC Pacer: https://golang.org/issue/44167
- Scheduler performance: https://golang.org/issue/43997
Toolchain changes:
- Register-based calling convention: https://golang.org/issue/40724
- Fuzzing: golang.org/s/draft-fuzzing-design
运行时变化：
- New GC Pacer: https://golang.org/issue/44167
- Scheduler performance: https://golang.org/issue/43997
工具链变化：
- Register-based calling convention: https://golang.org/issue/40724
- Fuzzing: golang.org/s/draft-fuzzing-design