The 987.2's direct-injection 9A1 engine removed the IMS bearing and is widely described as the most reliable, 'peak water-cooled' iteration, retaining hydraulic steering and a naturally-aspirated flat-six. Risk-averse buyers specifically seek 2009+ DFI cars over 987.1.
987.2 (2009-2012) is the reliability sweet spot
Porsche Boxster 987 · drivetrain