Apple released the first beta version of the update OS X Yosemite 10.10.4 for developers. A few hours before the company issued a cumulative update OS X 10.10.3 , eliminating a critical error with the video drivers.
According to the documentation, the first test release of OS X Yosemite 10.10.4 shall not be new features. As Apple says that the update is "aimed at improving the stability and security of Mac". Previous release was more generous to the new features. In particular, OS X Yosemite 10.10.3 brought new application photo, easier way to access my account Google-services expanded collection of emoticons.
Participants in the program testing from the developers can already download the OS X Yosemite 10.10.4 beta 1. In the near future beta release an update for users registered in the program, Apple Seed. The first public beta of OS X 10.10.3, recall, debuted along with OS X 10.10.3 beta 2.
For ordinary users the final version of OS X Yosemite 10.10.4 will be available after the completion of testing.