diff --git a/.changeset/twenty-eggs-protect.md b/.changeset/twenty-eggs-protect.md
deleted file mode 100644
index 1cf6499d2..000000000
--- a/.changeset/twenty-eggs-protect.md
+++ /dev/null
@@ -1,16 +0,0 @@
----
-"@xmtp/xmtp-js": major
----
-
-### BREAKING CHANGES
-
-- Removed internal content types and their primitives
-- Added content types and primitives from their respective packages
-- Removed `ContentTypeComposite`, see [XIP-19](https://community.xmtp.org/t/xip-19-deprecate-the-composite-codec/525) for more details
-- Removed `ContentTypeFallback`
-
-With this update, the following are no longer exported from the JS SDK: `ContentTypeId`, `CodecRegistry`, `ContentCodec`, `EncodedContent`, `ContentTypeFallback`, `TextCodec`, `ContentTypeText`, `Composite`, `CompositeCodec`, `ContentTypeComposite`
-
-For content type primitives, use the new `@xmtp/content-type-primitives` package. It exports `ContentTypeId`, `CodecRegistry`, `ContentCodec`, and `EncodedContent`.
-
-The text content type and codec can now be found at `@xmtp/content-type-text`. It exports `ContentTypeText`, `Encoding`, and `TextCodec`.
diff --git a/packages/js-sdk/CHANGELOG.md b/packages/js-sdk/CHANGELOG.md
index 8a625d822..cc9b7e7c8 100644
--- a/packages/js-sdk/CHANGELOG.md
+++ b/packages/js-sdk/CHANGELOG.md
@@ -1,5 +1,23 @@
 # @xmtp/xmtp-js
 
+## 12.0.0
+
+### Major Changes
+
+- 9619322:
+  - Removed internal content types and their primitives
+  - Added content types and primitives from their respective packages
+  - Removed `ContentTypeComposite`, see [XIP-19](https://community.xmtp.org/t/xip-19-deprecate-the-composite-codec/525) for more details
+  - Removed `ContentTypeFallback`
+
+### BREAKING CHANGES
+
+With this update, the following are no longer exported from the JS SDK: `ContentTypeId`, `CodecRegistry`, `ContentCodec`, `EncodedContent`, `ContentTypeFallback`, `TextCodec`, `ContentTypeText`, `Composite`, `CompositeCodec`, `ContentTypeComposite`
+
+For content type primitives, use the new `@xmtp/content-type-primitives` package. It exports `ContentTypeId`, `CodecRegistry`, `ContentCodec`, and `EncodedContent`.
+
+The text content type and codec can now be found at `@xmtp/content-type-text`. It exports `ContentTypeText`, `Encoding`, and `TextCodec`.
+
 ## 11.6.3
 
 ### Patch Changes
diff --git a/packages/js-sdk/package.json b/packages/js-sdk/package.json
index 332266756..412c7b73a 100644
--- a/packages/js-sdk/package.json
+++ b/packages/js-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@xmtp/xmtp-js",
-  "version": "11.6.3",
+  "version": "12.0.0",
   "description": "XMTP client SDK for interacting with XMTP networks.",
   "keywords": [
     "xmtp",