Just got some phones that were never activated on "N900PVPUBMI3". Should I Keep?

I just got some phones on "N900PVPUBMI3" firmware. This is amazing. What are the odds of getting note 3's with first stock firmware.

Should I upgrade them all the way to "N900PVPUEOK2" or keep them the way they are?

Is there security problems with this? If you don't care about your data is it cool?

What do you guys think?

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