KMS rotation & performance (v4.20.2)
Quarterly KMS key rotation completed across all tenants. Auth latency improvements and small bug fixes.
Improved
- Auth session latency reduced by ~30% after KMS warm-cache improvements.
- Webhook signature verification now uses
HMAC-SHA512.
Fixed
- Rare race condition when two operators claim the same exception simultaneously.
- Time-zone display bug on the Executive surface for ap-southeast-1 tenants.