diff --git a/.github/workflows/release-please.yml b/.github/workflows/release-please.yml
index 6f472e15..e9e0ac48 100644
--- a/.github/workflows/release-please.yml
+++ b/.github/workflows/release-please.yml
@@ -1,6 +1,12 @@
 name: Release Please
 
 on:
+  workflow_dispatch:
+    inputs:
+      publish:
+        description: Build and publish the current pyproject version to PyPI
+        type: boolean
+        default: false
   push:
     branches:
       - main
@@ -15,6 +21,7 @@ jobs:
     steps:
       - uses: googleapis/release-please-action@v5
         id: release
+        if: ${{ github.event_name != 'workflow_dispatch' || inputs.publish != true }}
         with:
           release-type: python
 
@@ -49,27 +56,27 @@ jobs:
 
       # Publish to PyPI when a release is created
       - name: Checkout
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created == 'true' || (github.event_name == 'workflow_dispatch' && inputs.publish == true) }}
         uses: actions/checkout@v6
 
       - name: Setup Python
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created == 'true' || (github.event_name == 'workflow_dispatch' && inputs.publish == true) }}
         uses: actions/setup-python@v6
         with:
           python-version: '3.10'
 
       - name: Install build dependencies
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created == 'true' || (github.event_name == 'workflow_dispatch' && inputs.publish == true) }}
         run: |
           python -m pip install --upgrade pip
           pip install build twine
 
       - name: Build package
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created == 'true' || (github.event_name == 'workflow_dispatch' && inputs.publish == true) }}
         run: python -m build
 
       - name: Publish to PyPI
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created == 'true' || (github.event_name == 'workflow_dispatch' && inputs.publish == true) }}
         env:
           TWINE_USERNAME: __token__
           TWINE_PASSWORD: ${{ secrets.PYPY_API_TOKEN }}
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2ce6bc16..71cce632 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "6.2.0-beta.3"
+  ".": "6.2.0-beta.4"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a8ac51e..47ec112f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [6.2.0-beta.4](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.2.0-beta.3...v6.2.0-beta.4) (2026-05-26)
+
+
+### Features
+
+* **decisioning:** add request-scoped capabilities hook ([#869](https://github.com/adcontextprotocol/adcp-client-python/issues/869)) ([23fb317](https://github.com/adcontextprotocol/adcp-client-python/commit/23fb3176a6d88f6986f5c81f185bc2fd848f822d))
+* **server:** negotiate media buy version handling and update actions ([#871](https://github.com/adcontextprotocol/adcp-client-python/issues/871)) ([5a89d86](https://github.com/adcontextprotocol/adcp-client-python/commit/5a89d86ffaf006ce79352eeb05365517b6f7791c))
+* support AdCP 3.1 Beta 4 ([#872](https://github.com/adcontextprotocol/adcp-client-python/issues/872)) ([1bae6e8](https://github.com/adcontextprotocol/adcp-client-python/commit/1bae6e895a125080158b06f758803ed17a071a25))
+
 ## [6.2.0-beta.3](https://github.com/adcontextprotocol/adcp-client-python/compare/v6.1.1-beta.2...v6.2.0-beta.3) (2026-05-26)