Release 1.4.18 includes some ORM regressions typically involving very complex mapping/query combinations, as well as makes an improvement that is hoped to support Flask-SQLAlchemy integration as well as similar integrations. Some new asyncio features are included as well as varied other dialect-level fixes for PostgreSQL and SQLite (specifically pysqlcipher).
Thanks to our users and developers for their continued support and efforts on the project.
The complete changelog for 1.4.18 is at Changelog.
SQLAlchemy 1.4.18 is available on the Download Page.
转自 https://www.sqlalchemy.org/blog/