diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 5faf2218..8d4b3e14 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,6 +1,6 @@
 {
   "packages/react-uploader": "3.0.1",
-  "packages/uploader-core": "3.0.2",
+  "packages/uploader-core": "4.0.0",
   "packages/react-uploads-list": "2.0.1",
   "packages/uploads-list-core": "2.0.1",
   "packages/vue-uploader": "3.0.1",
diff --git a/packages/uploader-core/CHANGELOG.md b/packages/uploader-core/CHANGELOG.md
index dc32a4dd..0428dbaa 100644
--- a/packages/uploader-core/CHANGELOG.md
+++ b/packages/uploader-core/CHANGELOG.md
@@ -1,5 +1,35 @@
 # Changelog
 
+## [4.0.0](https://github.com/web3-storage/w3ui/compare/uploader-core-v3.0.2...uploader-core-v4.0.0) (2023-01-25)
+
+
+### ⚠ BREAKING CHANGES
+
+* core and framework components have changed considerably. Please read the updated doucmentation.
+* The uploader-core API has been augmented with a new method to support chunked CAR uploads `uploadCarChunks`. The static `encode*` functions are now exported directly from the `*-uploader` modules instead of being injected by the provider and have different signatures to allow for streaming DAG generation. The `uploadCar` method of the provider has been replaced with the more friendly `uploadFile` and `uploadDirectory` functions (and `uploadCarChunks` to allow for direct CAR uploads).
+
+### Features
+
+* add CAR splitting ([#66](https://github.com/web3-storage/w3ui/issues/66)) ([1c57dba](https://github.com/web3-storage/w3ui/commit/1c57dba9ef51845927432acd3836d4c576eb39fe))
+* add global test framework and tests ([c806db3](https://github.com/web3-storage/w3ui/commit/c806db31b9432ec1303e47ddaf0187ffd220ccd0))
+* add README for packages ([6d1690b](https://github.com/web3-storage/w3ui/commit/6d1690b3ba557a95c4203f6f22fe5c6700626766)), closes [#26](https://github.com/web3-storage/w3ui/issues/26)
+* base for uploader core doc ([7a19b77](https://github.com/web3-storage/w3ui/commit/7a19b77e2d2fbc599ad2cb3aa4e3e9ec800514a0))
+* consume access and upload client ([#159](https://github.com/web3-storage/w3ui/issues/159)) ([e36d842](https://github.com/web3-storage/w3ui/commit/e36d842b1695032355ab29646c3dce6a33880517))
+* multi file upload ([4f9a5ce](https://github.com/web3-storage/w3ui/commit/4f9a5ced2d3819dd5d3eb05c0a273230ff003de2))
+
+
+### Bug Fixes
+
+* add license to published packages ([957178d](https://github.com/web3-storage/w3ui/commit/957178d72cb0051c2f798793a314acd23b8f3beb))
+* configure to use raw-leaves ([e875ddb](https://github.com/web3-storage/w3ui/commit/e875ddb6da931cf595e055b3049afd7f2e6f9622))
+* file upload example ([796d607](https://github.com/web3-storage/w3ui/commit/796d6076bd0781c23ccaafd3d259830950f43959))
+* linting ([14461ac](https://github.com/web3-storage/w3ui/commit/14461acf82ec05b7a856dee37f62026c07ba0d9f))
+* lockfile ([09120cb](https://github.com/web3-storage/w3ui/commit/09120cb93d550fc8e1f7df39cb7585fefc3f4dca))
+* missing files ([1b2691d](https://github.com/web3-storage/w3ui/commit/1b2691d604a5b2fba4ac08b357a64cb48beecbad))
+* resolve call fetch on window object ([777df5d](https://github.com/web3-storage/w3ui/commit/777df5dbbd3aaa890a095c7eb39d74633505690e))
+* simplify encoder ([88b169c](https://github.com/web3-storage/w3ui/commit/88b169cd58393e53235c75d60a1d0c116d3d21e0))
+* uploads listing ([#104](https://github.com/web3-storage/w3ui/issues/104)) ([dc2139f](https://github.com/web3-storage/w3ui/commit/dc2139f5e00c9195c480ce5c98a78b4296713ac7))
+
 ## [3.0.1](https://github.com/web3-storage/w3ui/compare/uploader-core-v3.0.0...uploader-core-v3.0.1) (2022-12-15)
 
 
diff --git a/packages/uploader-core/package.json b/packages/uploader-core/package.json
index 71144979..ef5eeef1 100644
--- a/packages/uploader-core/package.json
+++ b/packages/uploader-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@w3ui/uploader-core",
-  "version": "3.0.1",
+  "version": "4.0.0",
   "description": "w3ui uploader core.",
   "main": "src/index.ts",
   "publishConfig": {