FIND-20260329-012 · 2026-03-29 · Innovation Veille
ClickHouse 25.12.9.61 LTS released — 26.2 features cloud + observability enhancements
release
MEDIUM
ClickHouse 25.12.9.61 was released on 2026-03-24 as the latest LTS patch. The newer ClickHouse 26.2 main release features time-based block flushing for streaming data and observability enhancements. ClickHouse 26.3 (upcoming) will add direct GeoParquet file parsing. ODS last known version was 26.3.2.3-lts — the LTS patch 25.12.9.61 is a separate LTS branch, while the main 26.x branch continues ahead.
Source
https://clickhouse.com/docs/whats-new/changelog
ODS Impact
ODS Data Platform (P2) uses ClickHouse for OLAP analytics with Kafka engine ingestion from Redpanda. Time-based block flushing in 26.2 is directly relevant to the Redpanda -> ClickHouse Kafka engine pipeline, potentially improving ingestion latency. Review upgrade path from 26.3.x to ensure compatibility with materialized views and Kafka engine tables.
Security Review
License: Apache-2.0 | Maintenance: ACTIVE | Risk: LOW | Recommendation: SAFE_TO_USE
Tags
clickhouse
olap
release
streaming
data-platform