Mikrotik's good about this, though. I have several Mikrotiks at home (difficult WLAN due to walls etc), purchased by a company that later upgraded to 802.11n-ca

Mikrotik's good about this, though. I have several Mikrotiks at home (difficult WLAN due to walls etc), purchased by a company that later upgraded to 802.11n-capable APs. Some of what I have is >10 years old. Mikrotik still makes new OS images for them, and they answer support mail without asking me for a customer number, registration or anything.