Incident Review: Intermittent Disruption and Degradation of Heroku Services on October 20, 2025

1 · Heroku · Nov. 14, 2025, 11:35 p.m.
Summary
The blog post provides a comprehensive incident review detailing the Heroku service disruption experienced on October 20, 2025, caused by a database service outage linked to upstream issues at their cloud infrastructure provider. It explains the incident's phases, impacts, and underlying causes with an emphasis on the challenges faced due to the architecture of their service. This type of content serves to inform the developer community about real-world challenges in managing cloud services.