FIND-20260413-005 · 2026-04-13 · Innovation Veille
ClickHouse 26.3 LTS Series: Active Patch Releases in April 2026
release
MEDIUM
ClickHouse 26.3 LTS is receiving frequent patch releases (v26.3.3.20 on Apr 1, v26.3.4.11 on Apr 6, v26.3.5.12 on Apr 8, v26.3.6.5 on Apr 10). Key improvements include async inserts enabled by default (batching all small inserts), query optimization with partition pruning for deterministic functions, corrected NOT operator SQL semantics, and expanded JSON capabilities. The ODS last-versions tracker shows 26.3.7.8-lts which is ahead of search results — may already be on latest.
Source
https://clickhouse.com/docs/whats-new/changelog
ODS Impact
Data Platform Zero-ETL layer: ClickHouse OLAP store fed by Debezium CDC. Async insert default change may affect insert performance tuning. Verify current deployed version and review JSON improvements for semi-structured event data from Redpanda.
Security Review
License: Apache-2.0 | Maintenance: ACTIVE | Risk: LOW | Recommendation: SAFE_TO_USE
Tags
clickhouse
release
lts
olap
analytics
zero-etl