so many people must have unlimited data and they don't notice the effect of the Feb update. I just changed my data plan from unlimited to 3 gb, Feb 14th just after an update my data usage sky rocketed. I went from under .5gb a month to 5gb! The update has prevented all of my apps from closing! I have to select task manager and close all, every time I leave my wi-fi access areas to prevent another crazy usage month! This has happened to me, using my samsung s5 and several of my friends as well!
It's now abundantly clear that Lollipop is the buggiest Android release in many years. Google has had to constantly update the OS to fix a number of annoying issues. There have even been a few updates which ended up fixing things that previous updates broke. Perhaps this latest version will finally smooth out the ripples.
Android 5.1.1 started showing up in the Android Studio SDK manager this morning. There's no word yet on what this .1 incremental release will actually add, but more than likely it's minor big squashing. Despite the bugginess of Android 5.x Lollipop, it's still a great evolution of Android. Perhaps Google should have simply let it bake a bit longer before pulling it out of the oven...
Source:
Google+