2025 Changelog

Backported in #84395: Fix rollback of Dynamic column on parsing failure. #82169 (Pavel Kruglov).
Backported in #84671: Fix filter merging into JOIN condition in cases when equality operands have different types or they reference constants. Fixes #83432. #84145 (Dmitry Novik).
Backported in #84558: Fix deadlock caused by background cancellation checker thread. #84203 (Antonio Andelic).
Backported in #84493: Fixed incorrect construction of empty tuples in the array() function. This fixes #84202. #84297 (Amos Bird).
Backported in #84453: Make zoutofmemory hardware error, otherwise it will throw logical error. see https://github.com/clickhouse/clickhouse-core-incidents/issues/877. #84420 (Han Fei).
Backported in #84652: Fix out-of-order writes to Keeper changelog. Previously, we could have in-flight writes to changelog, but rollback could cause concurrent change of the destination file. This would lead to inconsistent logs, and possible data loss. #84434 (Antonio Andelic).
Backported in #84627: Fix pruning files by virtual column in data lakes. #84520 (Kseniia Sumarokova).
Backported in #84632: Change pre-25.5 value of allow_experimental_delta_kernel_rs to false for compatibility. #84587 (Kseniia Sumarokova).
Backported in #84727: Lock 'mutex' when getting zookeeper from 'view' in RefreshTask. #84699 (Tuan Pham Anh).

NO CL ENTRY: 'Revert "Backport #84026 to 25.6: Disable query condition cache for recursive CTEs"'. #84408 (Raúl Marín).
NO CL ENTRY: 'Fix query condition cache usage with non-deterministic IN sets'. #84622 (Robert Schulze).

Backported in #84362: Fix test_storage_rabbitmq timeouts. #84234 (Pablo Marcos).