Summary of Heroku June 10 Outage

On June 10, 2025, Heroku experienced service disruptions starting at 6:00 UTC, causing up to 12 hours of downtime for customers due to an unintended system update. The company confirmed that the issue was not a security incident and no customer data was lost. They have since restored services and apologize for the inconvenience, acknowledging the significance of their platform to users' businesses.