+++ New to Photon?
please get the new PUN 2+ package . +++Already using PUN and not sure if you should switch to PUN 2+
No worries, we will continue supporting PUN v1 as PUN Classic and you can upgrade to PUN 2 for free at any time
If you are short before launch or already invested a lot of time in developing your project then there is no need to switch.
If you have just started or just played around then please check out the new PUN 2+ package
More info:Unity Forum Thread
and Product Website.