v1.38.5 - LSM store performance improvements, Batch vectorization potencial deadlocks Fix, Allocation free reference cacher improvement

Breaking Changes

none

New Features

none

Fixes

• fix(hfresh): never hold version-map locks across LSM operations by @asdine in #12119
• Search time entrypoint repair by @trengrj in #11956
• Fix batch vectorization deadlocks by @dirkkul in #12070
• flat: fix vectors invisible to flat cached search after restart with unflushed data by @asdine in #12132
• perf(usage): open dimensions bucket once per shard with sequential-access hint by @antas-marcin in #12106
• When resetting the HNSW graph, ensure tombstone metric is cleared by @trengrj in #12131
• Fix flaky GQL accptance test with EC issues by @dirkkul in #12140
• fix(concurrency): thread per-query budget into sroar merge fan-out (P1a) by @etiennedi in #12076
• ci: switch acceptance tests to use ubicloud-standard-4 runner by @antas-marcin in #12148
• fix(lsmkv): sort WALs before recovery so the newest stays the active memtable by @antas-marcin in #12138
• ci: switch integration and module tests to ubicloud runners by @antas-marcin in #12153
• perf(inverted): reuse read buffer in objectsByDocID by @amourao in #12142
• perf(sorter,group-by): reuse read buffer in docID resolution loops by @amourao in #12143
• perf(lsmkv): cache immutable memtable tombstone snapshot for queries by @amourao in #12051
• perf(lsmkv): lock-free tombstone reads + write-side lock split by @amourao in #12052
• feat(lsmkv): make in-place segment cleanup switch crash-atomic by @antas-marcin in #12156
• fix(generative-google): make class settings optional to avoid sending defaults to Gemini by @antas-marcin in #12123
• feat(usage): warn when collection cycles overlap the collection interval by @antas-marcin in #12174
• Skip lazy-unloaded tenant shards in TTL sweep by @dirkkul in #12178
• refatc(diagnostic): add slow raft apply log gate by @moogacs in #12180
• backport: fix(acceptance-test): handle http client concurrency by @moogacs in #12182
• backport: fix(memberlist): retry on join with deadline by @moogacs in #12183
• chore(rplc-mvmnt): remove consumer.sync from happy path due to redundancy by @tsmith023 in #12179
• perf(search): eliminate per-call allocations in SelectProperties lookups by @etiennedi in #12134
• perf(internode): exact-size single-alloc marshalling for fan-out payloads (slice 1/3) by @etiennedi in #12135
• fix(test): widen flaky RansomNote aggregate count assertion by @etiennedi in #12194
• fix(hnsw): entrypoint repair test flake by @trengrj in #12205
• fix(replica-movement): atomic LWW on change-log replay by @moogacs in #12190
• fix(lsmkv): reclaim deleted docs' property lengths at compaction by @amourao in #12147
• fix(lsmkv): track live-set avgdl at compaction so BM25 scores don't drift with deletes (#311) by @amourao in #12168
• [Reindex Fixes A] fix: atomic tokenization+bucket snapshot per BM25 query (LiveQueries flake) by @etiennedi in #11540
• chore(rplc-mvmnt): add more debug logging to ccl usage by @tsmith023 in #12175
• Namespace suspend scaffolding (errors etc) by @dirkkul in #12204
• fix(rbac): error on unknown command version instead of looping forever during migration by @antas-marcin in #12196
• ci: split unit tests into adapters / non-adapters parts by @antas-marcin in #12185
• fix(db): propagate usage-file removal error in NewShard instead of discarding it by @antas-marcin in #12191
• Expose structured where-filter on the MCP hybrid search tool by @g-despot in #11755
• [Reindex Fixes B] fix: partial-state cleanup deleted live class-level deferred-finalize dirs by @etiennedi in #11982

Full Changelog: v1.38.4...v1.38.5