[shepherdjerred]

Usually us-east-1 is deployed to after several smaller regions. Usually it'll fall in the middle of the week depending on the pipeline.

Just because a feature is there on launch day doesn't mean it was deployed to first. Features are often hidden behind flags that are switched for launch.

[jedberg]

I'm well aware of that, but the point is that when the feature is ungated to the public, it's in us-east-1 and gets all that load, and more load than the rest because of the fact that a lot of big customers are based in us-east-1, including much of Amazon itself.