Greetings fellow macRumors fans! I recently recieved a used Macbook pro. its a 5,5 to be exact. I was able to get some free memory for it, so its got 8Gb and my SSD from RMA is returning tomorrow for it. So it will be a nice machine within the week. However, is there a possible way to determine when apple drops support for a machine like this? My previous mac was just retired a month ago, when the SSD died and i got this machine free. And its nice, its able to run El cap, but how do i know how much longer it will have? like will it run 10.12? Reason im asking is because I bought my Macbook 3,1 in late 07. I ran leopard on it until apple pulled the plug on 10.5 Then about a month later, i think it was 2010, i purchased snow leopard and then my university gave me a copy of Lion last year. But i purchased a battery for essentially an end of life product. So if you havnt figured it out, this machine needs a battery. And apple wont sell me one (they dont support machines after 5 years) yet i bought the one for my 3,1 off the shelf in an actual apple store. Anyways, ive turned to a nuPower battery from OWC. its $99 and it looks like i might pay shipping due to my location. So im worried ill buy it, and then apple will pull the plug.. What do you think? Its a Macbook Pro 5,5 13'3 display Nvidia 9400M 256mb 160Gb Hard drive 4Gb ram soon to be 8 running el cap no problem. Stuck at windows 7 bootcamp, running 10 with minimal driver issues.