Apple recently released an update recommended for all users of OS X Yosemite.
Update-ul10.10.5 comes with some solutions of compatibility, stability and especially with solving some problems of security.
OS X Yosemite v10.10.5
– improves compatibility with certain they serve e-mail, when it is used Mail application from Mac OS X.
– Make it happen import files video FROM GoPro camera in the application Photos.
– Resolve errors which prevents the playback of some video files inQuickTime Player.

How to update on Mac
First of all, it is recommended to make a backup of the entire operating system. You can do this using the TimeMachine utility. The update can be done in two ways:
1. Through App Store > Boton Updates.
2. Download and installation directly from the Apple website, from the section for updates.
Download and installationOS X Yosemite v10.10.5 Update – apple.com.
This update requires restart OS X and lasts about 20 minutes.