Rolling upgrades with MaxSurge for Virtual Machine Scale
Sets is now generally available.
Rolling upgrades with MaxSurge can help improve service
uptime during upgrade events. With MaxSurge enabled, new instances are created
in batches using the latest scale model. When the new instances are fully
created and healthy, they begin taking traffic. The scale set then deletes
instances in batches matching the old scale set model. The process continues
until all instances are brought up-to-date.
Learn more.