Changes to Photos. Where did Camera Roll and Photo Stream albums go?
See...


iCloud, meet Photos: What's changing for your images in iOS 8  
How to Find Your Photos in iOS 8 (And Where Is Camera Roll?)  
iOS 8, thoroughly reviewed:Camera &amp; Photos


extract...  


  while Camera Roll is gone, its photos are not. They've simply moved over to a different location in the Photos app: Collections. Collections, which organizes all of your photos by date and location, is Apple's attempt at making photos more organized and searchable.


It appears that PhotoStream has gone &amp; only the last 30 days will be stored by default.