Apple today released OS X Yosemite 10.10.5 update which improves the stability, compatibility, and security of your Mac, and is recommended for all users.
• Improves compatibility with certain email servers when using Mail
• Fixes an issue in Photos that prevented importing videos from GoPro cameras
• Fixes an issue in QuickTime Player that prevented playback of Windows Media files
For detailed information about the security content of this update, please visit: http://support.apple.com/kb/HT201222.
For more detailed information about this update, please visit: http://support.apple.com/kb/HT205004.
OS X Yosemite 10.10.5 is available via Software Update.