FIND-20260403-005 · 2026-04-03 · Innovation Veille
ClickHouse v26.3.3.20-lts Released — New LTS Version for Production Use
release
MEDIUM
ClickHouse released v26.3.3.20-lts on April 1, 2026, a new Long-Term Support version intended for stable production deployments. This version includes partition pruning enhancements, async insert batching by default, materialized CTE support, and improvements to map column serialization. ODS currently tracks 26.2.6.27-stable, making this a minor version upgrade within the 26.x series.
Source
https://github.com/ClickHouse/ClickHouse/releases/tag/v26.3.3.20-lts
ODS Impact
ODS uses ClickHouse for the Zero-ETL analytics layer (P2 phase). The LTS designation makes this a candidate for the ODS staging deployment of ClickHouse. The async insert batching default may affect ingestion throughput from Debezium CDC topics. Review changelog before upgrading on staging.
Security Review
License: Apache-2.0 | Maintenance: ACTIVE | Risk: LOW | Recommendation: SAFE_TO_USE
Tags
clickhouse
release
analytics
olap
lts