Status: IN
DynamoDB global table MREC uses Streams for replication, supports TTL, supports transactions (region-local atomicity only), and publishes ReplicationLatency metric; MRSC does not use Streams for replication, does not support TTL, does not support transactions, and has no ReplicationLatency metric.
Source: entries/2026/03/11/amazondynamodb-latest-developerguide-globaltables-CoreConceptshtml.md