Outage in Aiven
Kafka upgrades to 3.9 are paused
Resolved Minor
June 11, 2026 - Started 8 days ago
- Lasted 5 days
Incident Report
Summary AI Generated
Aiven identified an issue with KRaft migrations during Kafka upgrades to version 3.9, causing those upgrades to be temporarily paused. Customers attempting to upgrade received an HTTP 403 error, though running Kafka services remained fully operational with no data or availability impact. A fix was prepared and entered final verification after approximately 115 hours, with upgrades set to resume once the resolution was confirmed.
We have identified an issue affecting KRaft migrations during Kafka upgrades to version 3.9, and have temporarily paused those upgrades while we investigate. If you try to upgrade now, your request will be rejected with an error asking you to contact support. We will re-enable upgrades once the issue is resolved.
Impact: Running Kafka services are not affected and continue to operate normally. Customers who attempt to upgrade a Kafka service to version 3.9 or later will receive an HTTP 403 error and the upgrade will not proceed. No data or service availability is impacted.
Trusted by 1,000+ teams
The Status Page Aggregator with Early Outage Detection
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
MONITORING
4 days ago - at 06/15/2026 02:01PM
We have a fix prepared, which is currently undergoing final verification. If validation is successful, we will proceed with deployment shortly. As a result, the incident is now moving into a monitoring phase while we observe system stability after the changes.
We will re-enable Kafka upgrades to version 3.9 once we confirm the issue is fully resolved.
INVESTIGATING
8 days ago - at 06/11/2026 03:25PM
We have identified an issue affecting KRaft migrations during Kafka upgrades to version 3.9, and have temporarily paused those upgrades while we investigate. If you try to upgrade now, your request will be rejected with an error asking you to contact support. We will re-enable upgrades once the issue is resolved.
Impact: Running Kafka services are not affected and continue to operate normally. Customers who attempt to upgrade a Kafka service to version 3.9 or later will receive an HTTP 403 error and the upgrade will not proceed. No data or service availability is impacted.
Latest Aiven outages
Service operations affected in Azure - 26 days ago
Issue affecting services in DigitalOcean NYC3 region - about 1 month ago
Multiple Aiven for Apache Kafka services experiencing disruption - about 1 month ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
