diff --git a/changelog.mdx b/changelog.mdx
index 4d163dd1..ea7c2c10 100644
--- a/changelog.mdx
+++ b/changelog.mdx
@@ -10,10 +10,16 @@ rss: true
   S3-Compatible API is now available for all! We have also added a new S3 Storage Zone region: Sydney (SYD) & Uploadpart now supports Content-MD5 validation. [Learn more](/storage/s3)
 </Update>
 
+<Update label="2026-07-09" tags={["Stream","(Improvement)"]}>
+  ## Stream Delivery Tiers documentation
+
+  The Stream 'Storage Tiers' page has been renamed to 'Delivery Tiers' to better reflect the distinction between Standard and Volume delivery tiers, including network performance and PoP routing differences. [Learn more](/stream/delivery-tiers)
+</Update>
+
 <Update label="2026-06-26" tags={["Optimizer","(Improvement)"]}>
-  ## AVIF, HEIC and HEIF are now GAAVIF, HEIC and HEIF are now GA
+  ## AVIF, HEIC and HEIF are now GA
 
-  Support for AVIF, HEIC and HEIF as input formats, and AVIF as an output format, has been promoted to [General Availability](/product-release-stages)Support for AVIF, HEIC and HEIF as input formats, and AVIF as an output format, has been promoted to [General Availability](/product-release-stages). [Learn more](/optimizer/dynamic-images/formats)
+  Support for AVIF, HEIC and HEIF as input formats, and AVIF as an output format, has been promoted to [General Availability](/product-release-stages). [Learn more](/optimizer/dynamic-images/formats)
 </Update>
 
 <Update label="2026-06-23" tags={["Shield","(New)"]}>
diff --git a/stream/changelog.mdx b/stream/changelog.mdx
index 111c4be0..0dfebe84 100644
--- a/stream/changelog.mdx
+++ b/stream/changelog.mdx
@@ -4,6 +4,12 @@ description: "Latest updates and improvements to Stream."
 rss: true
 ---
 
+<Update label="2026-07-09" tags={["Stream","(Improvement)"]}>
+  ## Stream Delivery Tiers documentation
+
+  The Stream 'Storage Tiers' page has been renamed to 'Delivery Tiers' to better reflect the distinction between Standard and Volume delivery tiers, including network performance and PoP routing differences. [Learn more](/stream/delivery-tiers)
+</Update>
+
 <Update label="2026-06-11" tags={["Stream","(Improvement)"]}>
   ## Direct play URLs now support query parameters & documentation improvements