diff --git a/my-deepagent/CHANGELOG.md b/my-deepagent/CHANGELOG.md
index 781e287..a37a6ac 100644
--- a/my-deepagent/CHANGELOG.md
+++ b/my-deepagent/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 ## [Unreleased]
 
+## [0.1.0] - 2026-05-16
+
+First tagged milestone of the Python rewrite. The pre-Python-rewrite TypeScript
+monorepo has been removed (commit `0e61b2d`); recovery is available via the
+`pre-python-rewrite` tag at `c9fed71`.
+
 ### Added
 - Step 15 — End-to-end real OpenRouter integration: `tests/integration/test_e2e_workflow.py`
   runs `spec-and-review@1` workflow (spec → review → verify) end-to-end against real