diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ddaced514..468c50524 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "8.0.0-beta.3"
+  ".": "8.0.0-beta.4"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c95cd113..36532e893 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [8.0.0-beta.4](https://github.com/adcontextprotocol/adcp-client-python/compare/v8.0.0-beta.3...v8.0.0-beta.4) (2026-08-19)
+
+
+### Bug Fixes
+
+* **ci:** skip Ladon for release bot PRs ([#1030](https://github.com/adcontextprotocol/adcp-client-python/issues/1030)) ([07ca85b](https://github.com/adcontextprotocol/adcp-client-python/commit/07ca85ba29f42fce5485a0cafa65f68a9700e9fe))
+
+
+### Performance Improvements
+
+* **server:** reduce MCP schema expansion cost ([#1043](https://github.com/adcontextprotocol/adcp-client-python/issues/1043)) ([a81adc7](https://github.com/adcontextprotocol/adcp-client-python/commit/a81adc78b4b36bf6bdb77e4cdf3ba40da65ce43f))
+
 ## [8.0.0-beta.3](https://github.com/adcontextprotocol/adcp-client-python/compare/v8.0.0-beta.2...v8.0.0-beta.3) (2026-08-18)
 
 SDK 8 beta release notes are cumulative. Adopters upgrading from SDK 7 should
diff --git a/pyproject.toml b/pyproject.toml
index 15ef81bc4..e1d56d2d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "8.0.0b3"
+version = "8.0.0b4"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}