Navigator Font Size
The navigator can track the system setting for Sidebar icon size which is used in the Finder and Mail. You can also choose a unique font size just for Xcode within Preferences, including the information, and up to large fonts and icon targets.

Document Tabs
The new tab helps you open a brand new tab with a click on, or track the selected record as you click on it across the navigator. You can re-arrange the document tabs to create a working set of files for your current task, and configure how the content is shown within each tab.

Widgets
Easily build widgets using the framework and the new widget API for UI. Widgets now are available in multiple sizes, and customers can visit the new widget gallery to preview sizes, search, and add them to Notification Center to access the important details.

Multiplatform template
New multiplatform app templates set up a new project easily, share the code and the new lifecycle APIs. The project structure encourages sharing the code across all platforms while creating a special custom experience for each platform.

Redesigned Organizer
All-new design groups have critical information about each of your apps together in one place. Choose any app from any teams, energy reports, navigate quickly, and performance metrics for your apps.

Testing
New tools in Xcode let you create the files that describe the various subscription and in-app purchase your app can offer, and create test scenarios to make sure that everything works for your customers.