Adjustable Row Heights: Now rows in your spreadsheet are adjustable. Change their height to fit your content just right. For Web, Mac, Windows.
Quip Notifications Lightning Component: Get updates from Quip without ever leaving your Salesforce record or custom Lightning page. Simply embed the Quip Notifications Lightning Component and you'll never miss a thing. You can even turn on push notifications for your web browser to alert you of new updates. For Quip for Salesforce.
Quip setup and user management enhancements in Salesforce: Admins can connect the Quip and Salesforce platforms faster by automatically adding new users in Salesforce to Quip. For Quip for Salesforce.
Footnote: These features will be available in the Salesforce Summer ‘19 release, but can be previewed in your Sandbox Instance now.
Versions: Web, Mac 5.5.1, Windows 5.6.1, Quip for Salesforce Summer '19