Amazon announced that Aurora serverless can now increase its capacity by up to 16 ACUs (Aurora Capacity Units) within a second and keep scaling up to 256 ACUs as demand grows. The change is on by default for clusters on platform version 3 or 4, and older clusters can upgrade to version 4 to get the benefit. The service still scales back to zero when idle, so you only pay for what you use.
Why it matters
Developers of agentic AI apps can handle sudden workload spikes without over‑provisioning, reducing cost and latency.