Hacker News Reader

FWIW, the first bullet mentions lifecycle rules:

"This action creates a copy of the object with updated settings and a new last-modified date. You can change the storage class without making a new copy of the object using a lifecycle rule."

Here's a 1/3rd speed copy of the image: https://imgur.com/a/K1OEnhU

"This action creates a copy of the object with updated settings and a new last-modified date. You can change the storage class without making a new copy of the object using a lifecycle policy"

"This action applies to all objects within the specified folders"

I'd assume the first one means youll get charged once for standard and once for glacier

It claims that the operation will make a copy instead of transition the objects, which as far as I understood it would have then deleted the original objects and accomplished something relatively similar but with an extra copy step.