Can someone please provide the correct path to upgrade the VIEW 5.0.1 to 6.0.1 environment ?

Vcenter  - ESxi - View composer - view connection server - view security server

OR

view composer  - View Connection server - View security server -  Vcenter - ESXi

Compatibility matrix is confusing as View 5.0.1 wont support vcenter/ESxi 5.5 u2 and I am no sure if I can upgrade them first before upgrading the VIEW connection servers