On June 17, 2026, AWS Summit New York ran a long line of announcements that filled in the infrastructure for running agents in production. The official blog has the full roundup.
https://aws.amazon.com/blogs/aws/top-announcements-of-the-aws-summit-in-new-york-2026/
One of them reads as plain from the headline alone: S3 annotations. You can attach up to 1 GB of information directly to an object, so the first impression is "tags just got bigger."
Reading it as a capacity story misses the point. This changes a decision: where the information attached to an S3 object should live. For a long time, the answer was usually "outside the object." You kept it in an external database or a sidecar file and reconciled the two with a sync process. S3 annotations add another option to that answer: don't move it out. If you have kept data in S3 while managing its metadata off to the side, you know the cost of keeping the two in sync.
The official announcement is here:
