ClickHouse version 23.12 has been released, bringing 21 new features, 18 performance optimizations, and 37 bug fixes to the popular open-source relational database management system. The release includes a significant feature for Refreshable Materialized Views, which allows users to create views that periodically run queries and update target tables atomically. This feature can be used to solve complex data processing problems efficiently. Additionally, ClickHouse has optimized its performance with improved vectorization using SIMD instructions, faster aggregation, and a new PASTE JOIN feature. The release also includes improvements for integrations with PowerBI, Metabase, dbt, Apache Beam, and Kafka connectors.