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sidebar_position: 1
sidebar_label: 2025
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# 2025 Changelog

### ClickHouse release v25.1.7.20-stable (dcc6b0a7384) FIXME as compared to v25.1.6.34-stable (004003dccf8)

#### Improvement
* Backported in [#76864](https://github.com/ClickHouse/ClickHouse/issues/76864): Add ability to reload `max_remote_read_network_bandwidth_for_serve` and `max_remote_write_network_bandwidth_for_server` on fly without restart server. [#74206](https://github.com/ClickHouse/ClickHouse/pull/74206) ([Kai Zhu](https://github.com/nauu)).

#### Bug Fix (user-visible misbehavior in an official stable release)
* Backported in [#76997](https://github.com/ClickHouse/ClickHouse/issues/76997): Fix data loss when enable async insert and insert into ... from file ... with unequal block size if the first block size < async_max_size but the second block > async_max_size, the second block will not be inserted. these data is left in `squashing`. [#76343](https://github.com/ClickHouse/ClickHouse/pull/76343) ([Han Fei](https://github.com/hanfei1991)).
* Backported in [#76675](https://github.com/ClickHouse/ClickHouse/issues/76675): Fixed `used_flag` initialization in parallel hash. It might cause a server crash. [#76580](https://github.com/ClickHouse/ClickHouse/pull/76580) ([Nikita Taranov](https://github.com/nickitat)).
* Backported in [#76833](https://github.com/ClickHouse/ClickHouse/issues/76833): Flush output write buffers before finalizing them. Fix `LOGICAL_ERROR` generated during the finalization of some output format, e.g. `JSONEachRowWithProgressRowOutputFormat`. [#76726](https://github.com/ClickHouse/ClickHouse/pull/76726) ([Antonio Andelic](https://github.com/antonio2368)).
* Backported in [#77062](https://github.com/ClickHouse/ClickHouse/issues/77062): Fix sorting of `BFloat16` values. This closes [#75487](https://github.com/ClickHouse/ClickHouse/issues/75487). This closes [#75669](https://github.com/ClickHouse/ClickHouse/issues/75669). [#77000](https://github.com/ClickHouse/ClickHouse/pull/77000) ([Alexey Milovidov](https://github.com/alexey-milovidov)).

#### NOT FOR CHANGELOG / INSIGNIFICANT

* Backported in [#76895](https://github.com/ClickHouse/ClickHouse/issues/76895): Add log for HTTP Bad Request. [#76594](https://github.com/ClickHouse/ClickHouse/pull/76594) ([Christoph Wurm](https://github.com/cwurm)).
* Backported in [#76823](https://github.com/ClickHouse/ClickHouse/issues/76823): CI: Disable cross-compile for ARM in release and backport. [#76808](https://github.com/ClickHouse/ClickHouse/pull/76808) ([Max Kainov](https://github.com/maxknv)).
* Backported in [#77045](https://github.com/ClickHouse/ClickHouse/issues/77045): fix fast test 02783_parsedatetimebesteffort leap year. [#76940](https://github.com/ClickHouse/ClickHouse/pull/76940) ([Han Fei](https://github.com/hanfei1991)).
* Backported in [#77082](https://github.com/ClickHouse/ClickHouse/issues/77082): Increase log level for dictionary loading. [#77052](https://github.com/ClickHouse/ClickHouse/pull/77052) ([Michael Lex](https://github.com/mlex)).

