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Retool change history

14Major incident
When (UTC)ChangeKind
Major incident: React App Builder Sandbox Installs May Fail to Install Dependencies
Retool reported a major React App Builder incident: downstream dependency issues could prevent sandbox installation and connection on Cloud and Self-Hosted instances. It ran from 2026-08-20 17:26 UTC to 2026-08-20 23:20 UTC (5 h 54 min); Cloud recovered at 17:30 UTC, and self-hosted fixes shipped in 4.0.12-stable and 4.43.0-edge.
Major incident
Major incident: Errors calling resources with Per-User authentication in Apps built with the New App Editor
Retool reported a major incident causing errors when calling resources with Per-User authentication in Apps built with the New App Editor. It started at 2026-08-14 15:06 UTC and was resolved at 2026-08-14 19:00 UTC, lasting 3 h 53 min. A fix was implemented by 2026-08-14 16:36 UTC; no cause was stated.
Major incident
Major incident: Workflows Stuck in Pending State
Retool Workflows experienced a major degradation: workflows were stuck pending, with increased 429 rate limit responses for start triggers. The incident began at 2026-07-30 20:22 UTC and was resolved at 2026-07-31 05:52 UTC, lasting 9 h 29 min. A fix was deployed at 07-30 21:20 UTC, with workflows still degraded but recovering.
Major incident
Critical incident: retool-email unavailable
Retool reported a critical Email Server outage from 2026-07-23 22:22 UTC to 2026-07-24 18:34 UTC, lasting 20 h 12 min. Some Retool Emails failed with “Disabled for sending spam” due to an upstream email provider issue; official user invites and password resets were unaffected. Retool restored the sending domain and normal delivery, and added safeguards against recurrence.
Major incident
Major incident: Retool Mobile apps cannot be opened in the in-browser preview
Retool Mobile apps failed to load in browser user-mode and editor previews during a major outage starting 2026-06-04 15:13 UTC, resolved at 2026-06-04 19:16 UTC (4 h 2 min). Editing mobile apps and native iOS/Android use were unaffected; Retool reported implementing a fix.
Major incident
Major incident: Elevated 504 Errors Impacting Cloud Users
Retool reported a major incident involving elevated 504 errors for cloud users, affecting Classic web app and Web Application and APIs. It started at 2026-05-25 12:39 UTC and was resolved at 2026-05-25 12:52 UTC, lasting 13 min; Retool reported implementing a fix and monitoring results.
Major incident
Major incident: Motherduck Resource disabled for investigation
Retool disabled the Motherduck resource, affecting Resource Queries, in a major outage starting 2026-05-08 19:06 UTC and lasting 13 h 36 min. Retool identified and fixed a caching issue, restored the integration, and marked the incident resolved at 2026-05-09 08:43 UTC.
Major incident
Major incident: Front-end assets from retool-edge.com failing to load for some customers
Retool reported a major outage preventing some customers’ Apps from loading because Comcast Business and Optimum (Altice USA / Cabelvision) blocked retool-edge.com. It began at 2026-05-05 23:59 UTC and lasted 2 days 15 h, resolving at 2026-05-08 15:38 UTC after all affected ISPs confirmed the domain was no longer blocked.
Major incident
Major incident: [Retool Cloud] PostgreSQL and REST API Resource Queries Intermittently Failing
Retool Cloud PostgreSQL and REST API resource queries intermittently failed, also affecting RetoolDB use, in a major-impact incident starting 2026-04-16 15:49 UTC. It lasted 2 h 27 min and was resolved at 2026-04-16 18:17 UTC after a fix returned affected services’ error rates to normal; no specific cause was disclosed.
Major incident
Major incident: [Retool Cloud] Google Sheets Integration Intermittently Failing with "Premature Close" Errors
Retool Cloud reported a major incident affecting a subset of users: Google Sheets resource queries intermittently failed with "premature close" errors starting 2026-04-16 15:31 UTC. The incident lasted 2 h 1 min and was closed at 2026-04-16 17:33 UTC as part of the larger PostgreSQL and REST API Resource Queries incident; closure did not confirm recovery.
Major incident
Major incident: Intermittent failures with Google Sheets, MySQL, and PostgreSQL integrations
Retool reported a major incident involving intermittent failures and elevated error rates in Google Sheets, MySQL, and PostgreSQL integrations, affecting Resource Queries and Workflows, while stating all query operations continued functioning. It lasted 12 h 46 min, from 2026-02-25 05:08 UTC to 2026-02-25 17:54 UTC; Retool confirmed affected resources were operational at resolution.
Major incident
Major incident: Outage
Retool reported a major partial outage across many product surfaces, recorded as starting and resolving at 2026-02-04 22:46 UTC (computed duration: 0 min). The vendor described the actual impact window as between 12:00pm and 12:08pm UTC, with no expected impact outside that timeframe.
Major incident
Major incident: Intermittent access issues affecting Retool Cloud
Retool Cloud experienced intermittent access issues with major impact starting 2025-11-18 13:45 UTC, lasting 1 h 20 min until resolution at 2025-11-18 15:05 UTC. Retool attributed the issue to an external partner, which deployed a fix; Retool reported stable performance since 14:43 UTC.
Major incident
Major incident: Increased 500 Error Rates Preventing Some Apps from Loading
Retool reported a major incident involving elevated 500 errors on a back-end endpoint that prevented some apps from loading. The incident lists a start of 2025-10-16 20:23 UTC and resolution at 2025-10-16 18:45 UTC; duration is unknown, and the resolution timestamp precedes the listed start.
Major incident