How to Check if Your Mac is Obsolete
As I described in my guide, What Does it Mean if Your Mac is Obsolete?, an obsolete Mac is basically a Mac that hasn't been in distribution for 7 years. Because the device hasn't been in circulation, the parts are no longer being made and stored in order to repair that Mac.
While this can be discouraging, especially if you find yourself attached to the Mac you currently own, all tech eventually becomes obsolete, particularly laptops and phones. This doesn't mean there is no way to get your obsolete device repaired, it just means that ARSs and AASPs won't be able to repair your device. With some luck and persistence, if you really don't want to upgrade, you may be able to find someone who will repair your device, they just won't be authorized by Apple standards.
Whatever the case, if you suspect your device might be obsolete, follow the below steps to check if your Mac is indeed obsolete so that you can decide to do next.