Some authors have suggested that Apple will put Bluetooth 4 technology into the rumored MacBook Pros, like Apple recently did for the MacBook Air and Mac Mini, as well as the iPhone 4S. Having received a replacement MacBook Pro from Apple UK in late September (shipped form the US), I can verify that Bluetooth 4.0.1f4 is already present on my MacBook Pro.
The question is — has this been a quiet update in recent weeks, or has it been in the MacBook Pro (Early 2011) all along? Or did Apple mistakenly ship an updated model to me? The other specs (of the 2.2 GHz entry level version) are unchanged. More specifications of the reported Bluetooth 4 are below.