The list of Winter ’19 features below apply to other Winter ’19 enhancements.
There are additional Winter ’19 features available to Salesforce Classic Only, Lightning Experience only, both Lighting Experience and Classic, Community Enhancements in the Winter ’19 Release Highlights post.
Note: These features are not listed in any specific order.
1.Salesforce App Enhancements:
a. On the File Detail page, users on the Saleforce App can see a file preview and details about the file, like the owner and last modified date.