MessageBird (Bird) change history: Slow processing of messages through Viber

MessageBird (Bird) reported a major Viber messaging degradation from 2025-10-21 14:11 UTC to 2025-10-24 07:43 UTC, lasting 2 days 17 h. Sending was slow due to reduced processing rates from Viber, and a limited subset of customers could not send messages. The vendor confirmed sending was fully restored and resolved the incident.