Apple opens OS X Yosemite 10.10.3 for Public beta testing.

Apple announced today that the newest version of Yosemite is now available for best testing – and it’s open to the public. Probably the most anticipated feature of this update is the brand new Photos app. Should you choose to download the beta of 10.10.3, be sure to back up your Mac first. Signing up for the beta program gives you prerelease access to Mac updates. If at any point you want to stop getting these beta updates, you can disable them in the App Store preference pane.

For more information, or to sign up for the beta testing, visit OS X Yosemite Public Beta Guide.