i phone 6 spotlight search swipe function

HI i have just got my I phone 6 and can't seem to get the swipe Right to left function to bring up Spot light search. Ive looked in settings but can only seem to turn on and off the parameters of the search. IE Contacts, applications etc. I'm sure i'm being daft but just can't seem to find how to turn it on/off! Im on IOS 8.4 would updating to 9.01 help?

Cheers