Hi @lightnet-des,
Yes we can apply v1.2 on top of v1.1. Please make sure that you follow the below steps to perform the same.
- Update the cnMaestro version to v3.0.4(Not applicable if cnMaestro cloud is used).
- Update the external e2e VM with package 1.2.0-r1 as explained here.
- Update the PoP device(s) with the 1.2 image
- Update all the other nodes with respective 1.2 image
1.2.0-r1 package and 1.2 device images can be downloaded from here.