Taylor Otwell tweeted this last night:
Should I just make next Laravel release PHP 5.5+ since 14.04 LTS includes 5.5?
— Taylor Otwell (@taylorotwell) February 5, 2014
The responses to this was mixed and of course the biggest complaint is shared hosting not supporting 5.5 for a while. Whatever he ends up deciding, it impresses me that Laravel is looking to drive PHP forward, instead of being complacent like some frameworks from the past.