Hi, Looking at the URL below, I had a few questions to understand the overall upgrade strategy. https://docs.starlingx.io/specs/specs/stx-4.0/approved/starlingx-2007403-pla... Q1: Can I assume that from R4.0 onwards, the intent is that all future releases will support seamless upgrades for both minor and major versions. Q2: Is downgrade an explicit non-goal? Q3: Any hooks for non-stx applications to backup and restore their state? Q4: For a simplex edge node, it involves a N+1 ISO (re)installation. Is a more seamless option on the roadmap Q5. For a simplex edge subcloud, possible to orchestrate this from the central cloud? Q6: Any non-goals for the seamless upgrade, like say CentOS upgrade?. Any pointers to additional info are very welcome. Thanks in advance Pratik