NOTE! Jiri has full info too. DID NOT occur with 48.124737. When I downloaded latest version I found I could no longer play, game just crashes when I attempt to start. See below for error message.
On Jiri's advice I have updated all drivers and wiped STEAM and reinstalled it, still cannot launch game.
Problem signature:
Problem Event Name: APPCRASH Application Name: DayZ.exe Application Version: 0.49.124.972 Application Timestamp: 542275b4 Fault Module Name: KERNELBASE.dll Fault Module Version: 6.1.7601.18409 Fault Module Timestamp: 531599f6 Exception Code: c06d007e Exception Offset: 0000812f OS Version: 6.1.7601.2.1.0.768.3 Locale ID: 3081 Additional Information 1: 0a9e Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e Additional Information 4: 0a9e372d3b4ad19135b953a78882e789