Azure DNS SLA: Updated to 100%
Azure DNS is being offered at 100% availability SLA, guaranteeing that valid DNS requests will receive a response from at least one Azure DNS name server 100% of the time.
29/06/2018
Effective December 1, 2019, the meter names of VNet Gateway standard, high performance, and ultra high performance will change. There won’t be a pricing impact from this change, but you will need to modify billing routines that rely on names.