This NIP is not yet in main. Here is an overview of PRs referencing this NIP.
Clarify tag filters MERGED @staab
nip-01: clarify response to close message. CLOSED @kehiy
Fix Ambiguous Wording for REQs in NIP-01 CLOSED @TheRebelOfBabylon
Revert "rename "parameterized replaceable event" to "addressable event"" OPEN @fernandolguevara
additional notes about escaping to ensure correct event IDs OPEN @mleku
Nip 01 escaping CLOSED @mleku
Update 01.md clarification added: BIP0340 tagged hashes are not used OPEN @GregTonoski
rename "parameterized replaceable event" to "addressable event" MERGED @fiatjaf
NIP-01: sort events by id after created_at MERGED @alexgleason
[NIP-01] Update regular events kind range OPEN @bezysoftware
Mention Protected Events in NIP-01 CLOSED @bezysoftware
Fix filter JSON comments to clarify that timestamp matches are inclusive CLOSED @tyiu
Clarify what happens when a duplicate subscription is sent, remove CLOSED on duplicate subscription MERGED @staab
Clarify which kinds have lifetime of 'regular'  MERGED @ArjenStens
Sending events and notices OPEN @ArmanTheParman
Improvements to communication between clients and relays OPEN @ArmanTheParman
update to parameterized tags OPEN @ArmanTheParman
tags explanation revision OPEN @ArmanTheParman
metadata clarity.md MERGED @ArmanTheParman
parentheses > commas MERGED @ArmanTheParman
Update 01.md MERGED @ArmanTheParman
More precisely document since/until bounds. MERGED @NfNitLoop
Mention extra metadata fields may be set MERGED @patrickReiis
rename "parameterized replaceable event" to "tagged-replaceable event" CLOSED @fiatjaf
Require tags to have at least one string MERGED @Giszmo
Add previous tag CLOSED @v0l
Minor fix to nip01 MERGED @arthurfranca
NIP-01: filters can query any tag OPEN @alexgleason
potentially superfluous/erroneous colon ":" character in NIP-01 non-parameterized replaceable-event "a" tag specfication CLOSED @avlo
Mark Key NIPs for Social Feeds as `final` OPEN @buttercat1791
NIP-01 Reword filter limits CLOSED @schmijos
Moves Kind:1 definition to NIP-10 OPEN @vitorpamplona
NIP01 Clarify missing 'd' tag in Param Repl Event is interpreted as empty string CLOSED @monlovesmango
fix(docs): typo in 01.md MERGED @theborakompanioni
#p refers to pubkeys, *not* "event pubkeys". MERGED @ibz
Practical guidance OPEN @ionextdebug
Fix typos in 01.md and 50.md MERGED @GoodDaisy
Improving Nip01 Text OPEN @vitorpamplona
NIP-01 Tighten-up subscription_id management rule MERGED @schmijos
Reword REQ for multiple filters MERGED @schmijos
Emphasis on multiple filters in NIP-01 MERGED @schmijos
`CLOSED` messages for relays that want to reject REQs and NIP-42 `AUTH` integration MERGED @fiatjaf
Remove all NIP authors MERGED @fiatjaf
Clarify that Whitespace is allowed in Content Field for Event Serialization CLOSED @kennethwolters
find tag by name CLOSED @mattn
make it clear that relays can keep multiple replaceable event versions MERGED @fiatjaf
Add the format of a-tags referring non-parameterized replaceable events MERGED @jiftechnify
fix typo MERGED @mattn
Fix typo CLOSED @mattn
Consistency and small refinements for NIP-01 MERGED @viktorvsk
merge nips 12, 16, 20 and 33 into nip 01 MERGED @fiatjaf
Update 01.md MERGED @lyager
Clarify sort order when specified limit MERGED @AsaiToshiya
NIP-01: add detailed description of since/until in filters MERGED @jiftechnify
NIP-01: Explicitly state that the `subscription_id` is treated per connection MERGED @darashi
Clarify the case-sensitivity of tag names MERGED @jiftechnify
Add a naming convention of object keys for kind 0 CLOSED @akiomik
Clarify JSON serialization for the `id` field MERGED @Semisol
Allow array of filters in REQs CLOSED @tcheeric
Minor edit: specify the unit of the filters' date attributes (seconds) MERGED @tcheeric
3% Byte Reduction in a High Data Load CLOSED @dfralan
Corrected a typo, issue #584 MERGED @Memory-of-Snow
Add description for clients to kind 1 MERGED @AsaiToshiya
"c" for content-type CLOSED @mattn
 #584 issue: Update 01.md CLOSED @Drugjudy
Fix link to NIP-10 MERGED @AsaiToshiya
A few changes to some nips. MERGED @unclebob
NIP-01 Rephrase Markdown special rule MERGED @schmijos
Uncle Bob's Theory of Operation CLOSED @unclebob
Link to NIP-10 from NIP-01 MERGED @michaelhall923
Implement Markdownlint GitHub action OPEN @mariano-perez-rodriguez
Markdown improvements - 01 CLOSED @mariano-perez-rodriguez
Markdown improvements, embelishments, and standardizations CLOSED @mariano-perez-rodriguez
Fix a typo; now types are EVENT, EOSE and NOTICE MERGED @darashi
Revert 'add NOTICE optional subscription_id' MERGED @Semisol
add optional subscription_id to NOTICE MERGED @pablof7z
remove tiny duplicate text MERGED @sepehr-safari
NIP-01: Specify canonical JSON for id derivation OPEN @shafemtol
Update NIP-01 to clarify pubkey reference MERGED @schmijos
Improve `` specification MERGED @mikeobank
Added clarification for signature to be in hex MERGED @jimmysong
Update NIP-01 to clarify since and until filters MERGED @regexbuster
NIP 1: Hashtags CLOSED @dkobia
LUD-01: fix typo for the desc of event kind 2 MERGED @hsjoberg
Remove username pattern requirements MERGED @staab
Minor grammar fixes MERGED @git-sgmoore
Clarify use of kind 1 and kind 1000-10000 MERGED @staab
Reword NIP-01 to clarify no line breaks. MERGED @mikedilger
Fix regex for SetMetadata in NIP1 MERGED @w3irdrobot
fix indentation MERGED @dzdidi
Fix typo on NIP 01 MERGED @dzdidi
a warning for future nip designers CLOSED @Giszmo
nip-01.md: kind: 0 - set_metadata conform to a standard event CLOSED @RandyMcMillan
Fix some typos and adds json type to code blocks in nip 1 MERGED @emeceve
clarify that tags may contain `null` strings CLOSED @Giszmo
update to nip01 to specify syntax for usernames. MERGED @unclebob