The main Name Search/Autocomplete is located on the right side of the menu of your family tree. Once you have entered three or more letters of any name on your family tree, a drop-down list of all the matching names is displayed (maximum 20 names).
Changes....
[1] Improved the search algorithm to make it faster.
[2] Show "searching" spinner icon while waiting for results
[3] Display message when no match is found
[4] Display message when you are not signed in and private names are hidden.
[5] Made drop down list wider (responsive, depending on device)