i can see JTAC recommend verison: 18.2R3-S2
meanwhile i can see there is newest version 18.2R3-S4
i believe more bugs already fixed.. so using18.2R3-S4 is better right?
also if we already using 15.1X53, how do we upgrade to 18.2R3-S4 ? just simply download image of 18.2R3-S4 and add package for installation ? or do we need to update multiple packages? thanks