Merge remote-tracking branch 'upstream/master' into draft-event

# Conflicts:
#	README.md

1 files changed, 9 insertions, 11 deletions

diff --git a/25.md b/25.md
index 3b4aa59..698f3fb 100644
--- a/25.md
+++ b/25.md
@@ -25,14 +25,16 @@ consider it a "+".
 Tags
 ----
 
-The reaction event SHOULD include `e` and `p` tags from the note the user is
-reacting to. This allows users to be notified of reactions to posts they were
-mentioned in. Including the `e` tags enables clients to pull all the reactions
-associated with individual posts or all the posts in a thread.
+The reaction event SHOULD include `a`, `e` and `p` tags pointing to the note the user is
+reacting to. The `p` tag allows authors to be notified. The `e` tags enables clients 
+to pull all the reactions to individual events and `a` tags enables clients to seek reactions
+for all versions of a replaceable event. 
 
-The last `e` tag MUST be the `id` of the note that is being reacted to. 
+The `e` tag MUST be the `id` of the note that is being reacted to. 
 
-The last `p` tag MUST be the `pubkey` of the event being reacted to.
+The `a` tag MUST contain the coordinates (`kind:pubkey:d-tag`) of the replaceable being reacted to. 
+
+The `p` tag MUST be the `pubkey` of the event being reacted to.
 
 The reaction event MAY include a `k` tag with the stringified kind number
 of the reacted event as its value.
@@ -41,9 +43,6 @@ Example code
 
 ```swift
 func make_like_event(pubkey: String, privkey: String, liked: NostrEvent) -> NostrEvent {
-    var tags: [[String]] = liked.tags.filter { 
-        tag in tag.count >= 2 && (tag[0] == "e" || tag[0] == "p") 
-    }
     tags.append(["e", liked.id])
     tags.append(["p", liked.pubkey])
     tags.append(["k", liked.kind])
@@ -68,8 +67,7 @@ content as an emoji if shortcode is specified.
   "tags": [
     ["emoji", "soapbox", "https://gleasonator.com/emoji/Gleasonator/soapbox.png"]
   ],
-  "pubkey": "79c2cae114ea28a981e7559b4fe7854a473521a8d22a66bbab9fa248eb820ff6",
-  "created_at": 1682790000
+  ...other fields
 }
 ```