[BillinghamJ]

It always has been - us-east-1 is the biggest region by far, so scale problems tend to arise there first.

[kjaftaedi]

All updates and patching start with us-east-1.

The main reason it has the most issues is because it's the guinea pig for production update deployments.

[whoevercares]

Hmm that’s not true, nowadays most new things will start with small regions, typically us-east-2

[arsh]

+1

[Matthias247]

That's a repeated wrong assumption. In general there is no unified rollout plan within AWS. Each service can use a different method.

[drpebcak]

I think it has more to do with the fact that it’s the oldest region, and they support some odd things there that do not exist in other regions.

[vanekjar]

Do you really believe that the biggest region is used for testing?

[arsh]

Not true at all