As I understand it, snapshot repos get upgraded as part of the upgrade to 5.x. Does this mean that 2.x snapshots in that repo can be restored into the now 5.x cluster? Also, what will happen to fields with conflicting types? Will they be dropped?
I'm asking in the context of indices that we might drop during upgrade due to mapping conflicts and which we would then want to restore. Unfortunately, due to dynamic mappings and ill-defined log formats we can't be 100% sure that some rogue mapping type conflict might appear prior to the upgrade.