[Rapzid]

It's my understanding that they roll out changes there first, historically. New features land there first. Etc. US-EAST-1 IS the canary.

[Matthias247]

This is a repeated wrong statement.

Every AWS service can decide their deployment strategy on their own - there is no mandate on which region gets updates first. And starting in smaller regions is recommended.

[toast0]

If it's the canary, you don't want to be there if you're single region. You probably do want to be there if you're multi-region, in case they roll out something that breaks you, but not everyone else.