Microsoft's product lifecycle page shows that their mainstream support for both the Surface 2 and Surface Pro 2 tablets will end on April 10th, 2018, or about 4 1/2 years from now.
From Neowin:
From Neowin:
According to Microsoft's Product Lifecycle page, mainstream support for both the Surface 2 and Surface Pro 2 will end on April 10th, 2018. That's nearly four and a half years from now, which is pretty much an eternity when it comes to new hardware.Microsoft ends mainstream support for Surface 2/Pro 2 on April 10, 2018
Microsoft had previously indicated it will end mainstream support for its Surface RT (now known just as Surface) tablet on April 11th, 2017. The original Surface Pro will find its support clock reaching its final second on July 10th, 2017.