With Network API version 2020-08-01, zone behavior for Standard SKU resources (Azure Load Balancer and Public IP addresses) will be updated such that:
- when no zone is specified, a non-zonal resource is created
- when a single zone is specified, a zonal resource is created
- when multiple zones are specified in a region with Availability Zones, a zone-redundant resource is created
A zone-redundant resource can only be created in regions where Availability Zones are supported.
Previously, when no zone was specified, a zone-redundant resource was created. No changes will be made to existing Public IP or Standard Load Balancer resources with previous API versions.