# fields per CT warning, checkbox widget, preview app token, UI Extensions multi video widgets/rating widget, new widgets styles
This small release contains the following new features and bug fixes:
- The Content Type Editor now warns users about the technical limitation of having up to 50 fields per Content Type
- Updated error messages for Content Type management actions
- Automatic login to the Web Discovery App if navigating from within the Contentful Web Application
- Updated visual and interaction design for the rating and boolean widgets
We also introduce a brand new "Checkbox" Editor widget for short-text list fields. It allows Content Modelers to use multiple predefined values for content creators to choose from in the Entry editor.