What's new in ClickStack. January '26.

In January, ClickStack, an open-source observability stack for ClickHouse, introduced significant updates, including the launch of Managed ClickStack, which offers a fully managed observability solution on ClickHouse Cloud, optimizing costs by charging for compute and storage rather than events or users. The improvements in index support, particularly with Bloom filters and the introduction of inverted indices, have significantly enhanced query performance for large datasets. ClickStack has also integrated materialized views to optimize alerts, making them more efficient by shifting aggregation work to the ingestion phase. Additional updates include support for the SQL HAVING clause in queries, legend filtering for charts, and improvements to the OpenTelemetry Collector for easier onboarding and independent operation. A new ClickStack theme, aligning with ClickHouse branding, was introduced alongside these technical advancements, reflecting ongoing efforts to enhance usability and scalability.