Except for Apple sent a new one to the developers beta version of OS X 10.9.5 Mavericks, the company has also released new updates Safari for OS X Lion and later. Update Safari 6.1.6 is intended for users of OS X Lion 10.7.5, OS X Lion Server 10.7.5 and OS X Mountain Lion 10.8.5. Update Safari 7.0.6 is instead intended for OS X Mavericks 10.9.4 users, bringing the same changes as the older version. Both updates can be installed by users in the Software Updates section Mac App Store. What changes have occurred?
In words Apple There were several memory issues in the WebKit interface that Apple solved by improving memory management. In the past, the existing bug could cause an unexpected shutdown or execution of unwanted code after visiting a malicious page. It is therefore recommended to install the update on all compatible devices.