diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d4f6f29..ada7355 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.0.0"
+  ".": "3.1.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5dc932b..5e2113a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.1.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v3.0.0...v3.1.0) (2026-01-26)
+
+
+### Features
+
+* export PricingOption and other union type aliases from main package ([#121](https://github.com/adcontextprotocol/adcp-client-python/issues/121)) ([a1c61e7](https://github.com/adcontextprotocol/adcp-client-python/commit/a1c61e7e5be8d79353c532c710586598fc562bc8)), closes [#120](https://github.com/adcontextprotocol/adcp-client-python/issues/120)
+
 ## [3.0.0](https://github.com/adcontextprotocol/adcp-client-python/compare/v2.19.0...v3.0.0) (2026-01-26)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index bd19186..22db9a8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "adcp"
-version = "3.0.0"
+version = "3.1.0"
 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 209ef57..75f1409 100644
--- a/src/adcp/__init__.py
+++ b/src/adcp/__init__.py
@@ -197,7 +197,7 @@
     get_adcp_signed_headers_for_webhook,
 )
 
-__version__ = "3.0.0"
+__version__ = "3.1.0"
 
 
 def get_adcp_version() -> str: