Missing patches for the ZenWiFi Routers (Score 1)

Most of the ZenWiFi routers did not get patches. Only the XT8 and XT9. I own a XD6 router that was first released mid-2021. It's last patch was October last year and some the routers listed above have received 3 patches and multiple security and CVE fixes. So an ASUS router that is 2 years old got it's last firmware patch 18 months from release and then nothing. This barely passes the warranty period. Very, very unhappy.