Aurora Serverless can now add roughly 12 ACUs in the first second of a scale-up event on platform versions 3 and 4. The change is automatic and is most useful for bursty SaaS, API, batch and agent workloads, but it does not remove the separate resume delay when a database has scaled all the way to zero.
Turso’s hosted early preview adds `BEGIN CONCURRENT` transactions backed by MVCC. Writes to different rows can proceed in parallel, while conflicting transactions fail at commit and must retry. The feature targets a core scaling constraint that often pushes applications away from SQLite-style architectures.