Here are few and major new feature,

1. The all new application launching view. The Frequent tab includes your most commonly used applications, which means that you don't have to spend time looking for the things you use most often. The All tab shows all your applications and also includes application folders, which contain several groups of applications. This makes it easier for you to browse your applications.



2. A revamped Searching from the Activities Overview features a new search results view, as well as new search settings. Together, these allow any application to present search results, making Activities Overview search a more powerful way to access the content that is provided by the applications. The new search settings provide control over which applications present search results as well as their order in the results list.