Resolved after 15 hours 44 minutes, affecting Slack App and Slack Web App and 1 more, on October 20, 2025.
AWS services have returned to normal operations, and all Polly services remain fully operational. Our engineering team continues to monitor system health closely to ensure ongoing stability.
Affected components
Update timeline
- monitoring Oct 20, 2025, 09:58 AM UTC
We are currently experiencing partial service degradation due to an ongoing AWS outage affecting some of our services. Our engineering team is actively monitoring the situation and working to mitigate any impact. We’ll continue to provide updates on this page as more information becomes available.
- monitoring Oct 20, 2025, 10:21 AM UTC
Based on the latest update from AWS, the underlying issue has been resolved. AWS is now in the process of monitoring and verifying full recovery across their affected services. All Polly services are now fully operational. Our engineering team is closely monitoring the health of the system to ensure continued stability and performance.
- monitoring Oct 20, 2025, 11:28 AM UTC
AWS has continued to report steady recovery across all affected services. Our monitoring confirms that Polly services are operational. We’ll continue to monitor AWS’s final recovery steps and will mark this incident as resolved once AWS confirms full restoration across their infrastructure.
- monitoring Oct 20, 2025, 01:06 PM UTC
We’re closely observing system performance. AWS has continued to report steady recovery across all affected services.
- monitoring Oct 20, 2025, 03:51 PM UTC
AWS is again experiencing a recurrence of service issues, which may cause partial degradation for Polly services. Our engineering team is actively monitoring the situation and will continue to provide updates as more information becomes available.
- resolved Oct 21, 2025, 01:43 AM UTC
AWS services have returned to normal operations, and all Polly services remain fully operational. Our engineering team continues to monitor system health closely to ensure ongoing stability.
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