PostHog: Maintenance: ClickHouse Upgrades
Timeline of updates
- investigating
Status: Complete (Sat, 24 Oct 2026 22:00:00 GMT - Sun, 25 Oct 2026 15:33:03 GMT)
Our ClickHouse clusters have been updated
Affected components
- App (Web & Desktop) (Operational)
- REST API Query endpoints (Operational)
- REST API Query endpoints (Operational)
- App (Web & Desktop) (Operational)
Changes Rewindex caught on this incident
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves these records existed by then and have not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured
In the 2026-11-04 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
ec37f48ae5b4526f…Version 2 captured
In the 2026-11-04 checkpoint, timestamped by FreeTSA and DigiCert on . Record hash
cababf59de6fa230…
Impact, status and times are the vendor’s own, as last archived. View on www.posthogstatus.com (opens in new tab).
Cite this
Maintenance posted by PostHog, started 2026-10-25 15:33 UTC, resolved after 0 min, 1 update(s); edited after publishing.
- Title
- Maintenance: ClickHouse Upgrades
- Vendor
- PostHog
- Date
- URL
- https://rewindex.com/company/posthog/incidents/01M5KTX332TRM2XTMHAQHS65RT
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