[25.5.2] - 2025-12-26 Features - Rework SQL execution protocol for DML queries to reduce data transfer. - Introduce non-blocking SQL execution to prevent fiber starvation. Fixes - Fixed that governor would hang indefinitely if an Offline replicaset had target_master_name != current_master_name. - Fixed that instance would hang indefinitely when trying to join the cluster if the cluster becomes too big. NOTE: The fix requires modifying the proc_raft_join RPC response format which technically breaks compatibility with previous versions of picodata. However picodata explicitly doesn't support heterogeneous joins (when version of joining instances mismatches version of cluster), so this shouldn't be a problem for anybody. NOTE also that this doesn't affect restarting instances which already joined the cluster. - Fixed a crash when SQL request arrives before instance is properly initialized - Fixed that instances would be made Offline immediately after a raft entry is applied if there weren't any entries applied for a long time before that - Fixed that instances would randomly fail with ER_READONLY during bootstrap - Improve upgrade flow for creating Lua stored functions (exported to SQL). - Fixed that governor would send redundant proc_sharding RPCs which would make it impossible to deploy huge clusters. Now RPCs from governor are split into batches of configurable size (default 200, ALTER SYSTEM parameter `governor_rpc_batch_size`). - Node construction is now deferred until actually needed, avoiding unnecessary work for cached queries on any instance execution - Fixed a memory leak in SQL API of plugin SDK