 In September 2012, Google Play Books on Android was updated to feature a new sepia reading mode, in addition to day and night modes; info cards for unknown written geographical locations and dictionary definitions; word or phrase translation; and support for highlighting text and writing notes.The sepia reading mode, text highlighting and note-taking features were eventually extended to the iOS app in August 2013.In May 2013, Play Books started allowing users to upload PDF and EPUB files for free through the Play Books website, with support for up to 1,000 files.