# What broke on 2026-05-27

- Incidents: 64 at 50 providers; major outages: 2
- Downtime: 8d 7h

## Worst
- **Anthropic**: [Elevated errors on Claude Opus 4.7](https://down.guide/anthropic/DWN-258cd51521) (Partial outage; lasted 1h 37m; started 2026-05-27 08:04 UTC; claude.ai, Claude API (api.anthropic.com), Claude Code +1)
- **Anthropic**: [Elevated errors on Claude Opus 4.7](https://down.guide/anthropic/DWN-f4c15f0a94) (Partial outage; lasted 58m; started 2026-05-27 05:43 UTC; claude.ai, Claude API (api.anthropic.com), Claude Code +1)
- **ReadMe**: [ReadMe Refactored Outage](https://down.guide/readme/DWN-d14c68d33c) (Major outage; lasted 5h 29m; started 2026-05-27 17:08 UTC; ReadMe Hubs, ReadMe Knowledge Base, Admin Dashboard; us)
- **Slack**: [Trouble with Slack - General Slack functionality issues](https://down.guide/slack/DWN-ba0dc43479) (Degraded; lasted 16h 21m; started 2026-05-27 23:00 UTC; Messaging, Apps/Integrations/APIs, Canvases)
- **Wasabi**: [Intermittent Network Error - Wasabi Console](https://down.guide/wasabi/DWN-c07f2beae9) (Degraded; lasted 7h; started 2026-05-27 06:39 UTC; US-Central-1 (Texas), EU-Central-1 (Amsterdam), EU-Central-2 (Frankfurt) +2; eu, eu-central-1, eu-central-2, eu-west-1)
- **Maven Central (Sonatype)**: [search.maven.org is down](https://down.guide/maven-central/DWN-5f029ca183) (Major outage; lasted 11m; started 2026-05-27 12:10 UTC; Legacy Search - search.maven.org)
- **Grafana Cloud**: [Prometheus Datasource Errors/Outage in prod-us-east-0](https://down.guide/grafana-cloud/DWN-5c1944d6ed) (Partial outage; lasted 2h 37m; started 2026-05-27 20:22 UTC; AWS US East - prod-us-east-0: Querying; us, us-east-0)
- **EasyPost**: [Major Outage for Advanced Tracking](https://down.guide/easypost/DWN-ba7b300be8) (Partial outage; lasted 1h 29m; started 2026-05-27 21:18 UTC; Tracking)
- **Harness**: [Hosted CI Builds Failing Intermittently](https://down.guide/harness/DWN-25d00f4276) (Partial outage; lasted 13h 13m; started 2026-05-27 12:35 UTC; Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds +3)
- **Greenhouse**: [ReadMe - Harvest API Docs outage](https://down.guide/greenhouse/DWN-ec1d38a251) (Partial outage; lasted 20h 27m; started 2026-05-27 15:08 UTC; ReadMe ReadMe Hubs - Harvest API docs hosting)

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