diff --git a/CHANGELOG.md b/CHANGELOG.md
index f2d96d5a7b..abe3104a75 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.9.0](https://github.com/AztecProtocol/aztec-packages/compare/barretenberg-v0.8.14...barretenberg-v0.9.0) (2023-10-17)
+
+
+### Features
+
+* Bump msgpack ([#2884](https://github.com/AztecProtocol/aztec-packages/issues/2884)) ([d7b7fb1](https://github.com/AztecProtocol/aztec-packages/commit/d7b7fb1d70cfb6a592d4cf24c0da92ed9acc7d38))
+* Download msgpack ([#2885](https://github.com/AztecProtocol/aztec-packages/issues/2885)) ([8ac8beb](https://github.com/AztecProtocol/aztec-packages/commit/8ac8bebaa8dad39df6f3d6f622e215574062ac52))
+
 ## [0.8.14](https://github.com/AztecProtocol/aztec-packages/compare/barretenberg-v0.8.13...barretenberg-v0.8.14) (2023-10-13)
 
 
diff --git a/VERSION b/VERSION
index e7de65ca73..38d22964b3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v0.8.14 x-release-please-version
+v0.9.0 x-release-please-version
diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 21664631d9..394e399192 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.24)
 project(
     Barretenberg
     DESCRIPTION "BN254 elliptic curve library, and PLONK SNARK prover"
-    VERSION 0.8.14 # x-release-please-version
+    VERSION 0.9.0 # x-release-please-version
     LANGUAGES CXX C
 )
 # Insert version into `bb` config file
diff --git a/ts/CHANGELOG.md b/ts/CHANGELOG.md
index a86d67501e..c30a107cd9 100644
--- a/ts/CHANGELOG.md
+++ b/ts/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.9.0](https://github.com/AztecProtocol/aztec-packages/compare/barretenberg.js-v0.8.14...barretenberg.js-v0.9.0) (2023-10-17)
+
+
+### Miscellaneous
+
+* **barretenberg.js:** Synchronize aztec-packages versions
+
 ## [0.8.14](https://github.com/AztecProtocol/aztec-packages/compare/barretenberg.js-v0.8.13...barretenberg.js-v0.8.14) (2023-10-13)
 
 
diff --git a/ts/package.json b/ts/package.json
index 51114e1838..9039be158b 100644
--- a/ts/package.json
+++ b/ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@aztec/bb.js",
-  "version": "0.8.14",
+  "version": "0.9.0",
   "homepage": "https://github.com/AztecProtocol/aztec-packages/tree/master/barretenberg/ts",
   "license": "MIT",
   "type": "module",