Apple has announced the first update for its Lion OS X operating system, promising improved stability and compatibility.
According to Apple, the v10.7.1 update is recommended for all users running OS X Lion and resolves five known issues with the operating system.
The company said the update fixed issues that made systems unresponsive when playing video in Safari and caused audio to stop working when using HDMI or optical audio out.
The update also boasts improved reliability for Wi-Fi connections and fixes a data transfer problem, as well as an issue in which admin user accounts went missing after upgrading to OS X Lion.
The update is available through the Software Update tool, but Apple warned users to back-up their data before installation and that users who have tweaked their systems could run into problems.
“You may experience unexpected results if you have third-party system software modiﬁcations installed, or if you've modified the operating system through other means," the company said.
“Some updates must be installed prior to others, so you should run Software Update more than once to make sure you have all available updates.”
This article originally appeared at pcpro.co.uk