Engine Yard Platorm Release Notes for December 6th, 2018

Action: None. The changes take place upon deployment of the Engine Yard backend.

This week's release includes the following fixes: 

• Update region availability for 5th Generation instances
• By default, provision t3 instances with unlimited mode set to "disable"
• Fixed deleting of instances that are attached to App Load Balancers
• Updated ARN and ID formats for Container Services resources.
• Improved efficiency when cycling through available AWS AZs to provision an instance.