When working with Managed Navigation, menu items linked to pages that haven’t been published yet, are automatically hidden from anonymous visitors.
If you try to hide Navigation Terms pinned from a catalog in the navigation, URL rewriting for catalog items will break and you will see the physical URLs of those items instead.
When switching between the different Device Channels you can persist the choice using the DeviceChannel cookie.
When referencing CSS files in HTML files used with Design Manager CSS media queries are removed from the link tag.
SharePoint 2013 introduces the new App Model for deploying customizations. Find out what you need to take into account to convert your existing no-code Sandboxed Solutions to the new Apps for SharePoint.