- Metadata pre‑filtering for S3 Vectors is now available in AWS GovCloud (US‑East and US‑West) regions, delivering up to 5× more matching vectors for selective filters.
- Introduces a $startsWith prefix match operator for metadata filtering on values such as paths and URLs.
- Existing indexes can enable pre‑filtering in place via the UpdateIndexMode API; new indexes use it by default at no additional cost.