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Software dev here -

First time writing mac software instead of iOS, throws up some interesting new challenges! Any questions i will do my best to answer!

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Looks great! I don't really suffer from the possibility of people snooping whilst I'm away, but it'd be a great convenience device.

I'm an iOS developer as well, but I haven't delved into OS X development. What makes the device compatible with newer MBP's but not older ones (i.e. my 2009 model)?

Its the Bluetooth Low Energy chipset (part of bluetooth 4.0) in the modern macs that lets it talk to Sesame.

Thanks for the support!

I would imagine it's not compatible because of Bluetooth 4. I had a similar issue with my MacBook vs iMac using that Authy two-factor authentication app that was talked about a couple of months ago.

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