In the past few weeks numerous users of the 13-inch Retina MacBook Pro have complained online of freezing issues that render the entire computer useless and a reboot is required to make the machine work again. The issue, fortunately, occurs only when the web browser Safari is running and in addition has come into existence after the release of update OS X 10.11.4. It turns out that this is not a hardware issue but a software one and despite the nasty problem this should be good news.
What’s even better is that Apple has officially recognized the issue and has even offered a solution. In order to beat the freezing issue you should update to Mac OS X 10.11.5 and also upgrade to the latest version of Adobe Flash Player. This is all it takes.
OS X 10.11.5 has been around for a few weeks now and as always the update brings new functionality and apparently bug fixes. So maybe now is the time to upgrade before the freezing bug catches you.
Source: Ubergizmo.com