Apple has released OS X 10.10.3, a big update for its desktop OS that brings the new Photos app to the general user population. The update is available now via the App Store's 'Updates' tab, and is a free download for all users of OS X. The update also introduces new emoji, with over 300 new characters available, as well as new Spotlight suggestions, better stability and Wi-Fi performance and improved screen sharing reliability. Apple's new Photos app is the big addition here, so head on over to our full-scale review if you're looking to find out more about that particular addition to the OS X roster.