diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 466df71..a915e8c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.1.0"
+  ".": "0.1.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..f69729a
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,16 @@
+# Changelog
+
+## [0.1.1](https://github.com/wangauone/agent-plugin-sync/compare/0.1.0...0.1.1) (2026-08-20)
+
+
+### Features
+
+* add agent-plugin-sync harness manifest generator ([0826fc6](https://github.com/wangauone/agent-plugin-sync/commit/0826fc66f7adb4412b7e544383c72eb8bd913d01))
+* add Codex/Antigravity generators, enforce no $schema, rename extension models to PluginExtension ([a488de5](https://github.com/wangauone/agent-plugin-sync/commit/a488de5ac906b704fcfbe70871d80f3cf82a480b))
+* carry the Codex interface block through generation ([e147e1f](https://github.com/wangauone/agent-plugin-sync/commit/e147e1f7f4ef665a3d8de64e87536d68aab3f898))
+
+
+### Bug Fixes
+
+* only emit cwd for ./-relative commands in migrate ([9c18e21](https://github.com/wangauone/agent-plugin-sync/commit/9c18e2124b31ebf5b58af3f3b1aae9dd1f6c2886))
+* translate plugin-root path placeholders in args (migrate + gemini) ([ea9f29e](https://github.com/wangauone/agent-plugin-sync/commit/ea9f29eec8df313e7697f3c1f350fc165377a0a2))
diff --git a/pyproject.toml b/pyproject.toml
index 04cb4b1..ec8cbb1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "agent-plugin-sync"
-version = "0.1.0"
+version = "0.1.1"
 description = "Generate harness-specific plugin manifests (Gemini CLI, Claude Code, Codex, Antigravity) from a single Agent Plugin spec source (plugin.json + mcp.json)."
 readme = "README.md"
 license = "Apache-2.0"
diff --git a/src/agent_plugin_sync/__init__.py b/src/agent_plugin_sync/__init__.py
index e33029a..e9a7730 100644
--- a/src/agent_plugin_sync/__init__.py
+++ b/src/agent_plugin_sync/__init__.py
@@ -1,6 +1,6 @@
 """Generate harness-specific plugin manifests from a single Agent Plugin spec source."""
 
-__version__ = "0.1.0"  # x-release-please-version
+__version__ = "0.1.1"  # x-release-please-version
 
 # Namespace we own for generator input inside plugin.json `extensions`.
 PLUGIN_EXTENSION_NS = "com.google.cloud.data.agent-plugins"