diff --git a/app/changelog/page.mdx b/app/changelog/page.mdx
index 0bc13f7..fea79bf 100644
--- a/app/changelog/page.mdx
+++ b/app/changelog/page.mdx
@@ -12,6 +12,11 @@ This page lists changes since Working Draft 3. {{ className: 'lead' }}
 
 - Removed URI from [Report](/extensions/reports), and replaced `reason` with `tags`.
 - Mandated Unix-style `\n` line endings in all text fields.
+- Renamed the following headers, as per [RFC 6648](https://tools.ietf.org/html/rfc6648):
+  - `X-Signature` to `Versia-Signature`
+  - `X-Signed-By` to `Versia-Signed-By`
+- Removed the nonce from the [signature system](/signatures), replaced with `Versia-Signed-At` (timestamps).
+- Added `html_uri` to [Notes](/entities/note).
 
 ## Since WD 3
 
diff --git a/app/entities/note/page.mdx b/app/entities/note/page.mdx
index 01c98e0..999bfc9 100644
--- a/app/entities/note/page.mdx
+++ b/app/entities/note/page.mdx
@@ -90,7 +90,7 @@ Notes represent a piece of content on a Versia instance. They can be posted by [
                 A subject for the note. Useful for clients to display a "content warning" or "spoiler" feature, such as on Mastodon. Must be a plaintext string (`text/plain`).
             </Property>
             <Property name="html_uri" type="URI" required={false} typeLink="/types#uri">
-                URI to the note in HTML, for web browsers. Useful for "open this note on remote instance" functionality.
+                URI to the note's eventual HTML representation, for web browsers. Useful for "open this note on remote instance" functionality.
             </Property>
         </Properties>
     </Col>