- Don't swallow transaction errors [236](https://github.com/miguelgrinberg/flask-migrate/issues/236) A change proposed by kjohnsen from [#216](https://github.com/miguelgrinberg/flask-migrate/issues/216). You can read more starting with [this comment](https://github.com/miguelgrinberg/Flask-Migrate/issues/216#issuecomment-408159125). ([commit](https://github.com/miguelgrinberg/flask-migrate/commit/87b40ec9b2113ab87f1dc41c4eb517e8ff0f5dd8)) (thanks **Nikolay Shebanov**!)