diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 18b768ee5..108a0fdc1 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "8.0.0-beta.14"
+  ".": "8.0.0-beta.15"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f622de22a..624cc7777 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## [8.0.0-beta.15](https://github.com/adcontextprotocol/adcp-client-python/compare/v8.0.0-beta.14...v8.0.0-beta.15) (2026-09-05)
+
+
+### Bug Fixes
+
+* **ci:** retire superseded Ladon change requests ([#1135](https://github.com/adcontextprotocol/adcp-client-python/issues/1135)) ([00096e7](https://github.com/adcontextprotocol/adcp-client-python/commit/00096e72055395cbd47f1b351a067f00ec16be95))
+* **codegen:** restore downstream model contracts ([#1134](https://github.com/adcontextprotocol/adcp-client-python/issues/1134)) ([64725d7](https://github.com/adcontextprotocol/adcp-client-python/commit/64725d7db86b52a6e62c27d5044e689295133247))
+* **codegen:** upgrade to secure generator 0.64 ([#1132](https://github.com/adcontextprotocol/adcp-client-python/issues/1132)) ([f70de79](https://github.com/adcontextprotocol/adcp-client-python/commit/f70de79a5a9b3171cb77ec46d5feab82c6b12e2b))
+
 ## [8.0.0-beta.14](https://github.com/adcontextprotocol/adcp-client-python/compare/v8.0.0-beta.13...v8.0.0-beta.14) (2026-09-05)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index f85f5d762..6611550a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "8.0.0b14"
+version = "8.0.0b15"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}