I had configured Ovi Share, Flickr, PixelPipe & MobyPicture manually on Share Online 3.
After upgrading to Share Online 4.3, Ovi Share & Flickr were still displayed as available services, but the configuration had been deleted. Had to activate them again.
But PixelPipe & MobyPicture were completely deleted from Share Online. Had to download & configure the services again.
The upgrade should retain the pre-configured services.