Update vcsa while vcsaHA is enable and working

Dear all

Hi

i installed vcsa 6.7 build number :    11727113 and i config vcsaHA and it is now working

now i want to update my vcsa to lastest version now what do i havd to do before update vcsa ?

All of vcsa ( Active - passive , witness) will automatically update ?

Do i had to do normal update just on active vCenter ?

BR