diff --git a/.release-please-manifest.next.json b/.release-please-manifest.next.json
index 40d696dce..a822c8d5e 100644
--- a/.release-please-manifest.next.json
+++ b/.release-please-manifest.next.json
@@ -1,4 +1,4 @@
 {
-  ".": "10.0.0-beta.13",
+  ".": "10.0.0-beta.14",
   "packages/adcp-reporting-storage": "0.2.0-beta.3"
 }
diff --git a/CHANGELOG.next.md b/CHANGELOG.next.md
index 7b2fa86fe..3032d107c 100644
--- a/CHANGELOG.next.md
+++ b/CHANGELOG.next.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [10.0.0-beta.14](https://github.com/adcontextprotocol/adcp-client-python/compare/v10.0.0-beta.13...v10.0.0-beta.14) (2026-11-08)
+
+
+### ⚠ BREAKING CHANGES
+
+* **server:** control_media_buy refuses packages[].start_requires_all_creatives_approved: true with UNSUPPORTED_FEATURE before the handler runs when the seller's capabilities do not declare media_buy.features.creative_start_policy: true. A seller that honors the gate declares the feature.
+
+### Features
+
+* **server:** refuse an undeclared creative start policy on control_media_buy ([#1872](https://github.com/adcontextprotocol/adcp-client-python/issues/1872)) ([7baf947](https://github.com/adcontextprotocol/adcp-client-python/commit/7baf947ee3f7a02ff7601c9f91c6589b052870ab)), closes [#1869](https://github.com/adcontextprotocol/adcp-client-python/issues/1869)
+* **webhooks:** sign deliveries under web-bot-auth when a registration asks ([#1860](https://github.com/adcontextprotocol/adcp-client-python/issues/1860)) ([6ec940d](https://github.com/adcontextprotocol/adcp-client-python/commit/6ec940d08cae91c979d1180e2146c682ff488b76)), closes [#1859](https://github.com/adcontextprotocol/adcp-client-python/issues/1859)
+
 ## [10.0.0-beta.13](https://github.com/adcontextprotocol/adcp-client-python/compare/v10.0.0-beta.12...v10.0.0-beta.13) (2026-11-08)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 058e8fe42..85747a6a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "10.0.0b13"
+version = "10.0.0b14"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}