product · May 20, 2026
ClickHouse Enhances ClickStack With Performance and Observability Features in April 2026 Update
Share the canonical public link.
ClickHouse enhanced ClickStack in its April 2026 update announced around May 19, 2026. The update redesigns the otel_logs schema with a new ordering key and text indexes for attribute-map filtering that benchmarks show is 1.4–10x faster. It adds SQL-based alerting for alert logic, rolling baselines, and anomaly detection expressed in ClickHouse SQL. Autocomplete now queries materialized view rollups instead of live tables, and heatmaps expand across dashboards. ClickHouse released the April 2026 ClickStack update with these observability changes on May 19, 2026.
Below validation threshold — auto-passed without scoring