Router says validating identity
Any resource created with the new format will retain its longer ID, even if you opt back out. In January 2018, longer IDs will be available for opt-in via APIs and the EC2 Console.
Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change.
There is a good chance that you won’t need to make any system changes to handle the new format.