This NIP is not yet in main. Here is an overview of PRs referencing this NIP.
[NIP-47] Add versioning and migrate to NIP-44. OPEN @jklein24
[NWC] Add get_budget command for per-connection budget limits. OPEN @jklein24
format(all): JSON formatting MERGED @kehiy
47.md:use relative link MERGED @RandyMcMillan
Add multi_invoice_lookup to NWC / NIP47 OPEN @blackcoffeexbt
Add cross-currency payment methods to NWC. OPEN @jklein24
Fix connection string protocol description. MERGED @braydonf
NIP-47: fix NWC connection string example MERGED @SamSamskies
NIP-47 notifications OPEN @rolznz
NIP-47: fix typo MERGED @ekzyis
Clarify the anatomy of Nostr Wallet Connect URIs OPEN @Egge21M
Fix typos MERGED @xiaolou86
Remove all NIP authors MERGED @fiatjaf
NIP-47 Optional Secret OPEN @TonyGiorgio
NIP-47: Nostr Wallet Connect Extensions MERGED @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] CLOSED @kdmukai