diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2a266f81..573f0901 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.7.0"
+  ".": "3.8.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f95618f..caa5b2c1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [3.8.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v3.7.0...v3.8.0) (2026-03-01)
+
+
+### Features
+
+* sync schemas to AdCP 3.0.0-rc.1 ([#141](https://github.com/adcontextprotocol/adcp-client-python/issues/141)) ([b0497a3](https://github.com/adcontextprotocol/adcp-client-python/commit/b0497a3f673ce3b11b4f6c29d8b49953c1d5afd0))
+
+
+### Bug Fixes
+
+* resolve CI failures from GetSignalsRequest union alias ([#144](https://github.com/adcontextprotocol/adcp-client-python/issues/144)) ([f135651](https://github.com/adcontextprotocol/adcp-client-python/commit/f13565106931f471b0304e58b4c182679777676b))
+
 ## [3.7.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v3.6.0...v3.7.0) (2026-02-28)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 94f28a21..077b4caa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "3.7.0"
+version = "3.8.0"
 description = "Official Python client for the Ad Context Protocol (AdCP)"
 authors = [
     {name = "AdCP Community", email = "maintainers@adcontextprotocol.org"}
diff --git a/src/adcp/__init__.py b/src/adcp/__init__.py
index 22555317..1a052ab6 100644
--- a/src/adcp/__init__.py
+++ b/src/adcp/__init__.py
@@ -371,7 +371,7 @@
     get_adcp_signed_headers_for_webhook,
 )
 
-__version__ = "3.7.0"
+__version__ = "3.8.0"
 
 
 def get_adcp_version() -> str: