This NIP is not yet in main. Here is an overview of PRs referencing this NIP.
NIP-47 Optional Secret OPEN @TonyGiorgio
NIP-47: Nostr Wallet Connect Extensions OPEN @benthecarman
fixed typos MERGED @mattn
NIP-47 (NWC): Clarify `relay` usage for multiple relays OPEN @ok300
Uncle Bob's Observations from the field OPEN @unclebob
nip47: add lud16 parameter to connection string MERGED @jb55
A few changes to some nips. MERGED @unclebob
Uncle Bob's Theory of Operation CLOSED @unclebob
I added comments to express my confusion. CLOSED @unclebob
Implement Markdownlint GitHub action OPEN @mariano-perez-rodriguez
NWC PR: incorporate feedback MERGED @kiwiidb
NIP-47 Nostr Wallet Connect MERGED @Semisol
NIP-47: BIP-47 payment code notification via Nostr DM [Work-in-progress] OPEN @kdmukai