I recently upgraded to 4.4.2 and one thing I am noticing in Ap Ops is now some of the apps that are using Location are always "Running". In 4.3 they weren't constantly running and displayed the "last used" date.
For example, Google Play services, HTC Weather Location Service, and Android System are now always "Running". In 4.3 it would say "xx minutes ago" or even hours.
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