Public Preview: Azure Functions Flex Consumption now supports availability zones and 512 MB instances

You can now enable availability zones for your Flex Consumption apps during create or post-create. You can also choose the 512 MB instance memory size.  

Availability zones are physically separate groups of datacenters within each Azure region. When one zone fails, services can fail over to one of the remaining zones. When availability zones are enabled, instances are distributed across availability zones for increased reliability.  

Availability zones preview is initially available in the following regions: 

• Australia East 
• Canada Central 
• Central India 
• East Asia 
• Germany West Central 
• Italy North 
• Norway East 
• South Africa North 
• Sweden Central 
• West US 3 
• UAE North 
• UK South  

Moreover, Azure Functions now allows you to choose 512 MB in addition to 2048 MB and 4096 MB as the memory instance size for your Flex Consumption apps. This enables you to further cost optimize your apps that require less resources, and allows your apps to scale out further within the default quota. 

Learn more:

• About availability zones, see reliability in Azure Functions.
  
• About instance sizes, see Flex Consumption plan instance memory.