ClickHouse

Recent weeks brought a major engine release, expanded AI tooling, and new infrastructure components across the ClickHouse stack.

Query engine received 56 new features. The 26.6 release shipped hypothetical skip indexes, cascading refreshable materialized views, and experimental support for continuous aggregation, alongside 79 performance optimizations and 366 bug fixes.

Agent integrations multiplied. ClickHouse Agents extended to Managed Postgres, letting teams query Postgres and ClickHouse together in plain language. ClickHouse became a native connection in Notion Custom Agents. The Managed ClickStack MCP Server moved from open-source-only to a fully managed cloud offering.

Observability throughput improved fivefold. The team reworked ClickStack's schemas using primary key redesign, text indexes, query rewrites, and materialized views, cutting query times on the most-used patterns. AI dashboard and workflow generation landed inside ClickStack, building dashboards from a plain-language prompt.

New drivers and infrastructure components shipped. An official ADBC driver added Arrow-native data movement without conversion overhead. Docker Hardened Images arrived for the server, Keeper, and Kubernetes Operator. Silk, a stackful-fiber runtime with io_uring and NUMA-aware work-stealing, was announced for the distributed cache layer.

Postgres tooling expanded. WAL-RUS, a Rust-based backup tool written as a faster replacement for WAL-G, shipped as open source. pg_re2 brought RE2-powered regular expressions to Postgres. pg_clickhouse v0.3.2 added Postgres 19 support, TLS, and memory improvements.