Version 3.3.0 Release Notes

Compatible with OpenSearch and OpenSearch Dashboards version 3.3.0

Added

• Expand fetch phase profiling to support inner hits and top hits aggregation phases (#18936)
• [Rule-based Auto-tagging] add the schema for security attributes (#19345)
• Add temporal routing processors for time-based document routing (#18920)
• Implement Query Rewriting Infrastructure (#19060)
• The dynamic mapping parameter supports false_allow_templates (#19065, #19097)
• [Rule-based Auto-tagging] restructure the in-memory trie to store values as a set (#19344)
• Add a toBuilder method in EngineConfig to support easy modification of configs (#19054)
• Add StoreFactory plugin interface for custom Store implementations (#19091)
• Use S3CrtClient for higher throughput while uploading files to S3 (#18800)
• [Rule-based Auto-tagging] bug fix on Update Rule API with multiple attributes (#19497)
• Add a dynamic setting to change skip_cache_factor and min_frequency for querycache (#18351)
• Add overload constructor for Translog to accept Channel Factory as a parameter (#18918)
• Addition of fileCache activeUsage guard rails to DiskThresholdMonitor (#19071)
• Add subdirectory-aware store module with recovery support (#19132)
• [Rule-based Auto-tagging] Modify get rule api to suit nested attributes (#19429)
• [Rule-based Auto-tagging] Add autotagging label resolving logic for multiple attributes (#19486)
• Field collapsing supports search_after (#19261)
• Add a dynamic cluster setting to control the enablement of the merged segment warmer (#18929)
• Publish transport-grpc-spi exposing QueryBuilderProtoConverter and QueryBuilderProtoConverterRegistry (#18949)
• Support system generated search pipeline. (#19128)
• Add epoch_micros date format (#14669)
• Grok processor supports capturing multiple values for same field name (#18799)
• Add support for search tie-breaking by _shard_doc (#18924)
• Upgrade opensearch-protobufs dependency to 0.13.0 and update transport-grpc module compatibility (#19007)
• Add new extensible method to DocRequest to specify type (#19313)
• [Rule based auto-tagging] Add Rule based auto-tagging IT (#18550)
• Add all-active ingestion as docrep equivalent in pull-based ingestion (#19316)
• Adding logic for histogram aggregation using skiplist (#19130)
• Add skip_list param for date, scaled float and token count fields (#19142)
• Enable skip_list for @timestamp field or index sort field by default (#19480)
• Implement GRPC MatchPhrase, MultiMatch queries (#19449)
• Optimize gRPC transport thread management for improved throughput (#19278)
• Implement GRPC Boolean query and inject registry for all internal query converters (#19391)
• Added precomputation for rare terms aggregation (#18978)
• Implement GRPC Script query (#19455)
• [Search Stats] Add search & star-tree search query failure count metrics (#19210)
• [Star-tree] Support for multi-terms aggregation (#18398)
• Add stream search enabled cluster setting and auto fallback logic (#19506)
• Implement GRPC Exists, Regexp, and Wildcard queries (#19392)
• Implement GRPC GeoBoundingBox, GeoDistance queries (#19451)
• Implement GRPC Ids, Range, and Terms Set queries (#19448)
• Implement GRPC Nested query (#19453)
• Add sub aggregation support for histogram aggregation using skiplist (19438)
• Optimization in String Terms Aggregation query for Large Bucket Counts (#18732)
• New cluster setting search.query.max_query_string_length (#19491)
• Add StreamNumericTermsAggregator to allow numeric term aggregation streaming (#19335)
• Query planning to determine flush mode for streaming aggregations (#19488)
• Harden the circuit breaker and failure handle logic in query result consumer (#19396)
• Add streaming cardinality aggregator (#19484)
• Disable request cache for streaming aggregation queries (#19520)
• [WLM] add a check to stop workload group deletion having rules (#19502)

Changed

• Refactor if-else chains to use Java 17 pattern matching switch expressions (#18965)
• Add CompletionStage variants to methods in the Client Interface and default to ActionListener impl (#18998)
• IllegalArgumentException when scroll ID references a node not found in Cluster (#19031)
• Adding ScriptedAvg class to painless spi to allowlist usage from plugins (#19006)
• Make field data cache size setting dynamic and add a default limit (#19152)
• Replace centos:8 with almalinux:8 since centos docker images are deprecated (#19154)
• Add CompletionStage variants to IndicesAdminClient as an alternative to ActionListener (#19161)
• Remove cap on Java version used by forbidden APIs ()

Fixed

• Fix unnecessary refreshes on update preparation failures (#15261)
• Fix NullPointerException in segment replicator (#18997)
• Ensure that plugins that utilize dumpCoverage can write to jacoco.dir when tests.security.manager is enabled (#18983)
• Fix OOM due to large number of shard result buffering (#19066)
• Fix flaky tests in CloseIndexIT by addressing cluster state synchronization issues (#18878)
• [Tiered Caching] Handle query execution exception (#19000)
• Grant access to testclusters dir for tests (#19085)
• Fix assertion error when collapsing search results with concurrent segment search enabled (#19053)

Dependencies

• Bump com.gradleup.shadow:shadow-gradle-plugin from 8.3.5 to 8.3.9 (#19400)
• Bump com.netflix.nebula.ospackage-base from 12.0.0 to 12.1.1 (#19019, #19460)
• Bump actions/checkout from 4 to 5 (#19023)
• Bump commons-cli:commons-cli from 1.9.0 to 1.10.0 (#19021)
• Bump org.jline:jline from 3.30.4 to 3.30.5 (#19013)
• Bump com.github.spotbugs:spotbugs-annotations from 4.9.3 to 4.9.6 (#19015, #19294, , )

Removed

• Enable backward compatibility tests on Mac (#18983)