Hi Rob,
Sorry for the delay. We try to keep the latest version of each application in our catalog, unless we have information that states that we should support a certain set of versions. For ZScaler, we looked at the release notes and saw that 4.3 included all enhancements for 4.21 and assumed that we should always update the product to the latest. We've also not have other customers request to keep older versions around.
I'd be interested in the info that you get back from ZScaler, based on that information, we may determine that we should keep a few different "tracks" of this product around.
Sorry for the delay. We try to keep the latest version of each application in our catalog, unless we have information that states that we should support a certain set of versions. For ZScaler, we looked at the release notes and saw that 4.3 included all enhancements for 4.21 and assumed that we should always update the product to the latest. We've also not have other customers request to keep older versions around.
I'd be interested in the info that you get back from ZScaler, based on that information, we may determine that we should keep a few different "tracks" of this product around.