# ClickHouse Release 25.9

DevFeed: [ClickHouse Release 25.9](<https://devfeed.tech/articles/clickhouse-release-25-9-5131.md>)

Original publisher: [Read original article](<https://clickhouse.com/blog/clickhouse-release-25-09>)

Author: ClickHouse

Published: 2025-10-02T00:00:00Z

Content type: release

Language: en

Sources: [ClickHouse Blog](<https://devfeed.tech/sources/clickhouse-blog.md>)

Topics: [clickhouse](<https://devfeed.tech/topics/clickhouse.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Algorithms, Complexity](<https://devfeed.tech/topics/algorithms-complexity.md>), [Streaming](<https://devfeed.tech/topics/streaming.md>)

Tags: [bug-fixes](<https://devfeed.tech/tags/bug-fixes.md>), [clickhouse](<https://devfeed.tech/tags/clickhouse.md>), [database](<https://devfeed.tech/tags/database.md>), [features](<https://devfeed.tech/tags/features.md>), [new-features](<https://devfeed.tech/tags/new-features.md>), [performance](<https://devfeed.tech/tags/performance.md>), [release](<https://devfeed.tech/tags/release.md>), [streaming](<https://devfeed.tech/tags/streaming.md>)

## AI overview

ClickHouse 25.9 introduces 25 new features, 22 performance optimizations, and 83 bug fixes. Highlights include automatic global join reordering, streaming for secondary indices, and a new text index.

## Source excerpt

ClickHouse 25.9 is available. In this post, you will learn about new features, including a new text index, join reordering, streaming for secondary indices, and more.