To celebrate its first year, Google has officially released the free original quality storage for Nexus users on Google Photos. This means you don’t need to let Google compress your image to fit 16-megapixel resolution requirement to not count against your Google storage. Other new features coming to Google Photo include new sorting methods for photos within an album (including newest first, oldest first, and recently added). Contrast and Exposure controls are also coming to Google Photos soon.
Source: Android Community