Upgrade to R81.20 from R81.10 - VSX Environment - is VSLS required?

[Networks_Team_B]

We are upgrading our VSX environment from R81.10 to R81.20 

 https://sc1.checkpoint.com/documents/R81.20/WebAdminGuides/EN/CP_R81.20_RN/CP_R81.20_ReleaseNotes.pd... page 40

In the release notes it states the following:

1. Starting from R81.10, VSLS is the only supported mode for new installations of VSX Clusters.
Upgrade of a VSX Cluster in the High Availability mode from R81.10 and earlier versions to R81.20 is supported'

Is VSLS required for this upgrade? Or can we continue to run HA mode.

[emmap · Accepted solution]

HA mode will be retained through the upgrade process. There is no requirement to change it to VSLS.