diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5269b67..fc776d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ Notable changes to Agent Code Guard are recorded here.
 
 ## Unreleased
 
+## 0.3.0 - 2026-08-28
+
 ### Added
 
 - Opt-in `guards.loc.ratchetAt: "review"` support freezes source-controlled LOC
diff --git a/pyproject.toml b/pyproject.toml
index 082f344..a91586b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "agent-code-guard"
-version = "0.2.0"
+version = "0.3.0"
 description = "Deterministic cross-language guardrails for agent-assisted development"
 readme = "README.md"
 requires-python = ">=3.10"