S4 update... How can I tell if it has it?

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http://forums.androidcentral.com – Hi guys, this may sound I've a daft question, but how can I tell if my S4 has had the Samsung update? It's only a couple of weeks old and it says there are no updates available, but I just want to reassure myself. I can't find the hdr video camera mode in settings only for the camera? Posted via Android Central App (HowTos)