Umbraco Commerce v15.1.0-RC release notes.
The cart cleanup service is a new background service that periodically cleans up old abandoned carts. This service is off by default, but can be enabled via app settings.
See the Configuring Cart Cleanup guide for more details.
Order line actions are a new UI extension point that lets you register custom buttons to display against each order line of a cart/order.
See the Order Line Actions article for more details.
We welcome any feedback on installation or upgrade issues, as well as any bugs found in the sections mentioned above.
Issues can be raised on the Umbraco Commerce issue tracker at https://github.com/umbraco/Umbraco.Commerce.Issues/issues.