Best practice regarding RKE patch releases and Rancher support matrix

Hi. If RKE release a.b.d is available but the support matrix for the Rancher release I use mentions only RKE a.b.c (where c < d ), which RKE version should I use? Indeed, currently the support matrix for rancher 2.5.12 recommends RKE release 1.2.16, but RKE release 1.2.18 is available addressing critical CVEs.