Unified and personalized search will surely enhance the productivity for all Office 365 users as it was announced at Microsoft Ignite last year.
Microsoft Graph and AI powered new interface is expected to supercharge your day to day experience with Microsoft tools. You will notice a significant change when you log in to office.com as these changes are currently being shipped to tenants. It has landed in my Targeted Release Tenant and i noticed the changes few days ago.
Global search is now in the suit bar and the search result experience is consistently same across the entire Office 365 platform. Also, the all new Office Apps icons are reflected in the Waffle Menu. Just a few more apps like Dynamics and Flow icons to have a new look and they will soon be updated too.
Results are personalized by default: As soon as you click on the search box, search engine is intelligent to display a prominent result in a dropdown based on your recent activities and engagements across the organization.
Search results will include global results across the organization. Through this update you will also find excel and other files.
search box is now capable of commanding the application that you are in. You no longer need to drill down through tool bars to access commands, instead type the feature name in the application to get the list of suggested actions.
Mobile App Updates:
The new SharePoint mobile app will reflect these enhancements as well. Search experience is a key element which has been improved and it will list down common questions, personalized results, and frequent searches of your organization.
Microsoft Cloud Infrastructure Technical Journal 