It’s the third update to Windows Phone 8 software since the system’s release a year ago.

Microsoft is updating its Windows software for cellphones to accommodate larger devices, and make it easier for motorists to reduce distractions while driving.

It’s the third update to Windows Phone 8 software since the system’s release a year ago. Devices with this update will start appearing in the coming weeks, and older phones will be eligible for a free upgrade, too.

Something that may appeal to motorists — a new Driving Mode will automatically silence incoming calls and texts so that you can focus on the road. You also can configure the feature to automatically send out a reply to say that you’re driving.

It can be activated automatically when the phone is linked wirelessly with a Bluetooth device in the car, such as a headset.