pkg syscall (netbsd-arm64-cgo), const DLT_MTP3 = 141
pkg syscall (netbsd-arm64-cgo), const DLT_MTP3 ideal-int
pkg syscall (netbsd-arm64-cgo), const DLT_NULL = 0
pkg syscall (netbsd-arm64-cgo), const DLT_NULL ideal-int
pkg syscall (netbsd-arm64-cgo), const DLT_PCI_EXP = 125
pkg syscall (netbsd-arm64-cgo), const DLT_PCI_EXP ideal-int
pkg syscall (netbsd-arm64-cgo), const DLT_PFLOG = 117

pkg syscall (darwin-arm64), const DLT_LINUX_SLL ideal-int
pkg syscall (darwin-arm64), const DLT_LOOP = 108
pkg syscall (darwin-arm64), const DLT_LOOP ideal-int
pkg syscall (darwin-arm64), const DLT_NULL = 0
pkg syscall (darwin-arm64), const DLT_NULL ideal-int
pkg syscall (darwin-arm64), const DLT_PFLOG = 117
pkg syscall (darwin-arm64), const DLT_PFLOG ideal-int
pkg syscall (darwin-arm64), const DLT_PFSYNC = 18

pkg syscall (freebsd-arm64), const DLT_NFLOG ideal-int
pkg syscall (freebsd-arm64), const DLT_NG40 = 244
pkg syscall (freebsd-arm64), const DLT_NG40 ideal-int
pkg syscall (freebsd-arm64), const DLT_NULL = 0
pkg syscall (freebsd-arm64), const DLT_NULL ideal-int
pkg syscall (freebsd-arm64), const DLT_PCI_EXP = 125
pkg syscall (freebsd-arm64), const DLT_PCI_EXP ideal-int
pkg syscall (freebsd-arm64), const DLT_PFLOG = 117

pkg database/sql/driver, type NotNull struct
pkg database/sql/driver, type NotNull struct, Converter ValueConverter
pkg database/sql/driver, type Null struct
pkg database/sql/driver, type Null struct, Converter ValueConverter
pkg database/sql/driver, type Result interface { LastInsertId, RowsAffected }
pkg database/sql/driver, type Result interface, LastInsertId() (int64, error)

Andrew Bonventre <******@****.***> 1519172040 -0500

pkg os (darwin-amd64), const O_APPEND = 8
pkg os (darwin-amd64), const O_CREATE = 512
pkg os (darwin-amd64), const O_EXCL = 2048
pkg os (darwin-amd64), const O_SYNC = 128
pkg os (darwin-amd64), const O_TRUNC = 1024
pkg os (darwin-amd64), const PathListSeparator = 58
pkg os (darwin-amd64), const PathSeparator = 47
pkg os (darwin-amd64-cgo), const DevNull = "/dev/null"

pkg crypto/x509, type OID struct #60665
pkg database/sql, method (*Null[$0]) Scan(interface{}) error #60370
pkg database/sql, method (Null[$0]) Value() (driver.Value, error) #60370
pkg database/sql, type Null[$0 interface{}] struct #60370
pkg database/sql, type Null[$0 interface{}] struct, V $0 #60370
pkg database/sql, type Null[$0 interface{}] struct, Valid bool #60370
pkg debug/elf, const R_LARCH_64_PCREL = 109 #63725

pkg syscall (freebsd-riscv64), const DLT_NG40 = 244 #53466
pkg syscall (freebsd-riscv64), const DLT_NG40 ideal-int #53466
pkg syscall (freebsd-riscv64), const DLT_NULL = 0 #53466
pkg syscall (freebsd-riscv64), const DLT_NULL ideal-int #53466
pkg syscall (freebsd-riscv64), const DLT_PCI_EXP = 125 #53466
pkg syscall (freebsd-riscv64), const DLT_PCI_EXP ideal-int #53466

then an `api/next` file with the line

    pkg net/http, function F #12345

should have a corresponding file named `doc/next/6-stdlib/99-minor/net/http/12345.md`.
At a minimum, that file should contain either a full sentence or a TODO,
ideally referring to a person with the responsibility to complete the note.

Use the following forms in your markdown:

---
title: "Go, Backwards Compatibility, and GODEBUG"
layout: article
---

<!--
This document is kept in the Go repo, not x/website,
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.