Things change! There's never any doubt about that, particularly in the world of technology. Standards move on; bugs are found; methods are improved.
It's good to know that if there's reason to change something important about the logic embedded in your wireless access point, you generally can. Updating this logic is done via the process known as a firmware upgrade.
Firmware for an access point is generally updated using the administrative application for the access point. The details differ depending on the access point and its administrative program.
You should particularly keep your eyes open for firmware updates if you have bought a wireless access point that uses a “bleeding edge” standard in which all the details ...