diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0056118..3ba440d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.13.0] - 2026-06-18
+
 ### Added
 
 - **Parallel fan-out (`delegate_many`).** A new MCP tool lets an orchestrator fan **several sub-tasks
diff --git a/pyproject.toml b/pyproject.toml
index c4b9a9c..80cbc07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tanglebrain"
-version = "0.12.0"
+version = "0.13.0"
 description = "A cost-tiered LLM router: free local first, flat-rate subscriptions next, paid API last."
 readme = "README.md"
 requires-python = ">=3.10"