because it documents the full list of known GODEBUG settings,
which are tied to a specific release.
-->

## Introduction {#intro}

Go's emphasis on backwards compatibility is one of its key strengths.
There are, however, times when we cannot maintain complete compatibility.
If code depends on buggy (including insecure) behavior,
then fixing the bug will break that code.
New features can also have similar impacts:

pkg syscall (openbsd-386), const SYS_STAT = 291
pkg syscall (openbsd-386), const SYS_STATFS = 307
pkg syscall (openbsd-386), const SYS_UTIMENSAT = 326
pkg syscall (openbsd-386), const SYS_UTIMES = 138
pkg syscall (openbsd-386), const SYS_WAIT4 = 7
pkg syscall (openbsd-386), const SYS___THRSLEEP = 300
pkg syscall (openbsd-386), const SizeofIfData = 208
pkg syscall (openbsd-386), const SizeofIfMsghdr = 232