Heroku service disruption

We've confirmed a remediation path, and are applying the fix to the small subset of customers still experiencing a read-only state. We'll provide an update in 60 minutes or sooner if additional information becomes available.

While the majority of customers are now out of impact, we’ve determined that a small subset of customers may still be experiencing a read-only state with their databases. We're actively working to restore full functionality for all remaining affected customers. We'll provide an update in 60 minutes or sooner if additional information becomes available.

We’ve completed the migration to a new availability zone, and the Heroku-hosted web applications and customer databases are now fully operational.
We apologize for how this incident affected you and your business. We'll undertake a full investigation of the incident, establishing the technical trigger, the underlying cause, and preventive action to avoid a repeat in the future.

Engineers continue working on restoring impacted resources. While the partial outage from the upstream service provider is ongoing, we are seeing little customer impact. Upstream resources remain impacted, and our team continues to work toward full resolution. We will post an update in approximately 2 hours, or if anything changes sooner.

Engineers continue working on restoring impacted resources. While the partial outage from the upstream service provider is ongoing, we are seeing little customer impact. Upstream resources remain impacted, and our team continues to work toward full resolution.

Engineers are working to restore impacted resources. While the partial outage from the upstream service provider is ongoing, the majority of customers are observing recovery. Upstream resources remain impacted, and our team continues to work toward full resolution. We will post another update in approximately 2 hours.

Engineers are working to restore impacted resources. While the partial outage from the upstream service provider is ongoing, some customers are observing signs of recovery. Upstream resources remain impacted, and our team continues to work toward full resolution.

Beginning at 00:25 UTC on May 08, 2026, a partial outage in an upstream service provider began impacting a subset of customers in the US region. Affected customers may be experiencing intermittent connectivity, elevated DB latency, or degraded performance with third-party add-on providers.

Affected customers may wish to trigger database failovers as a mitigation.