[[release-notes-7.3.0]] == {es} version 7.3.0 Also see <>. [[breaking-7.3.0]] [float] === Breaking changes CCR:: * Do not allow modify aliases on followers {pull}43017[#43017] (issue: {issue}41396[#41396]) Data Frame:: * [ML][Data Frame] removing format support in date_histogram group_by {pull}43659[#43659] [[breaking-java-7.3.0]] [float] === Breaking Java changes Mapping:: * Refactor put mapping request validation for reuse {pull}43005[#43005] (issues: {issue}37675[#37675], {issue}41396[#41396]) Search:: * Refactor IndexSearcherWrapper to disallow the wrapping of IndexSearcher {pull}43645[#43645] [[deprecation-7.3.0]] [float] === Deprecations Features/Java High Level REST Client:: * Deprecate native code info in xpack info api {pull}43297[#43297] Mapping:: * Deprecate support for chained multi-fields. {pull}41926[#41926] (issue: {issue}41267[#41267]) Network:: * Deprecate transport profile security type setting {pull}43237[#43237] Search:: * Deprecate CommonTermsQuery and cutoff_frequency {pull}42619[#42619] (issue: {issue}37096[#37096]) [[feature-7.3.0]] [float] === New features Aggregations:: * Adds a minimum interval to `auto_date_histogram`. {pull}42814[#42814] (issue: {issue}41757[#41757]) * Add RareTerms aggregation {pull}35718[#35718] (issue: {issue}20586[#20586]) Audit:: * Enable console audit logs for docker {pull}42671[#42671] (issue: {issue}42666[#42666]) Data Frame:: * [ML-DataFrame] add sync api {pull}41800[#41800] Infra/Settings:: * Consistent Secure Settings {pull}40416[#40416] Machine Learning:: * [ML] Machine learning data frame analytics {pull}43544[#43544] Mapping:: * Add support for 'flattened object' fields. {pull}42541[#42541] (issues: {issue}25312[#25312], {issue}33003[#33003]) Ranking:: * Move dense_vector and sparse_vector to module {pull}43280[#43280] SQL:: * SQL: Add support for FROZEN indices {pull}41558[#41558] (issues: {issue}39377[#39377], {issue}39390[#39390]) Search:: * Wildcard intervals {pull}43691[#43691] (issue: {issue}43198[#43198]) * Add prefix intervals source {pull}43635[#43635] (issue: {issue}43198[#43198]) * Add an option to force the numeric type of a field sort {pull}38095[#38095] (issue: {issue}32601[#32601]) [[enhancement-7.3.0]] [float] === Enhancements Aggregations:: * Allocate memory lazily in BestBucketsDeferringCollector {pull}43339[#43339] (issue: {issue}43091[#43091]) * Reduce the number of docvalues iterator created in the global ordinals fielddata {pull}43091[#43091] Analysis:: * Return reloaded analyzers in _reload_search_ananlyzer response {pull}43813[#43813] (issue: {issue}43804[#43804]) * Allow reloading of search time analyzers {pull}43313[#43313] (issue: {issue}29051[#29051]) * Allow reloading of search time analyzers {pull}42888[#42888] (issue: {issue}29051[#29051]) * Allow reloading of search time analyzers {pull}42669[#42669] (issue: {issue}29051[#29051]) Authentication:: * Always attach system user to internal actions {pull}43468[#43468] (issue: {issue}42215[#42215]) * Add kerberos grant_type to get token in exchange for Kerberos ticket {pull}42847[#42847] (issue: {issue}41943[#41943]) * Permit API Keys on Basic License {pull}42787[#42787] Authorization:: * Add "manage_api_key" cluster privilege {pull}43728[#43728] (issue: {issue}42020[#42020]) * Use separate BitSet cache in Doc Level Security {pull}43669[#43669] (issue: {issue}30974[#30974]) * Support builtin privileges in get privileges API {pull}42134[#42134] (issue: {issue}29771[#29771]) CCR:: * Replicate aliases in cross-cluster replication {pull}41815[#41815] (issue: {issue}41396[#41396]) Cluster Coordination:: * Ignore unknown fields if overriding node metadata {pull}44689[#44689] * Add voting-only master node {pull}43410[#43410] (issue: {issue}14340[#14340]) * Defer reroute when nodes join {pull}42855[#42855] * Stop SeedHostsResolver on shutdown {pull}42844[#42844] * Log leader and handshake failures by default {pull}42342[#42342] (issue: {issue}42153[#42153]) Data Frame:: * [ML-DataFrame] Add a frequency option to transform config, default 1m {pull}44120[#44120] * [ML][Data Frame] add node attr to GET _stats {pull}43842[#43842] (issue: {issue}43743[#43743]) * [ML][Data Frame] Add deduced mappings to _preview response payload {pull}43742[#43742] (issue: {issue}39250[#39250]) * [ML][Data Frame] Add support for allow_no_match for endpoints {pull}43490[#43490] (issue: {issue}42766[#42766]) * [ML][Data Frame] Add version and create_time to transform config {pull}43384[#43384] (issue: {issue}43037[#43037]) * [ML][Data Frame] have sum map to a double to prevent overflows {pull}43213[#43213] * [ML][Data Frame] adds new pipeline field to dest config {pull}43124[#43124] (issue: {issue}43061[#43061]) * [ML][Data Frame] write a warning audit on bulk index failures {pull}43106[#43106] * [ML] [Data Frame] add support for weighted_avg agg {pull}42646[#42646] Distributed:: * Improve Close Index Response {pull}39687[#39687] (issue: {issue}33888[#33888]) Engine:: * Remove sort by primary term when reading soft-deletes {pull}43845[#43845] * Refresh translog stats after translog trimming in NoOpEngine {pull}43825[#43825] (issue: {issue}43156[#43156]) * Expose translog stats in ReadOnlyEngine {pull}43752[#43752] * Do not use soft-deletes to resolve indexing strategy {pull}43336[#43336] (issues: {issue}35230[#35230], {issue}42979[#42979], {issue}43202[#43202]) * Rebuild version map when opening internal engine {pull}43202[#43202] (issues: {issue}40741[#40741], {issue}42979[#42979]) * Only load FST off heap if we are actually using mmaps for the term dictionary {pull}43158[#43158] (issue: {issue}43150[#43150]) * Trim translog for closed indices {pull}43156[#43156] (issue: {issue}42445[#42445]) * Also mmap terms index (`.tip`) files for hybridfs {pull}43150[#43150] (issue: {issue}42838[#42838]) * Add a merge policy that prunes ID postings for soft-deleted but retained documents {pull}40741[#40741] Features/Indices APIs:: * Remove "template" field in IndexTemplateMetaData {pull}42099[#42099] (issue: {issue}38502[#38502]) Features/Ingest:: * Avoid HashMap construction on Grok non-match {pull}42444[#42444] * Improve how internal representation of pipelines are updated {pull}42257[#42257] Features/Java High Level REST Client:: * Add _reload_search_analyzers endpoint to HLRC {pull}43733[#43733] (issue: {issue}43313[#43313]) * Bulk processor concurrent requests {pull}41451[#41451] Features/Java Low Level REST Client:: * Adapt low-level REST client to java 8 {pull}41537[#41537] (issue: {issue}38540[#38540]) Features/Monitoring:: * Expand beats_system role privileges {pull}40876[#40876] Features/Watcher:: * Improve CryptoService error message on missing secure file {pull}43623[#43623] (issue: {issue}43619[#43619]) * Watcher: Allow to execute actions for each element in array {pull}41997[#41997] (issue: {issue}34546[#34546]) Infra/Core:: * Shortcut simple patterns ending in `*` {pull}43904[#43904] * Prevent merging nodes' data paths {pull}42665[#42665] (issue: {issue}42489[#42489]) * Deprecation info for joda-java migration on 7.x {pull}42659[#42659] (issue: {issue}42010[#42010]) * Implement XContentParser.genericMap and XContentParser.genericMapOrdered methods {pull}42059[#42059] Infra/Packaging:: * Omit JDK sources archive from bundled JDK {pull}42821[#42821] Infra/Plugins:: * Enable node roles to be pluggable {pull}43175[#43175] Infra/Scripting:: * Add annotations to Painless whitelist {pull}43239[#43239] * Add painless method getByPath, get value from nested collections with dotted path {pull}43170[#43170] (issue: {issue}42769[#42769]) * Add painless method getByPath, get value from nested collections with dotted path {pull}43129[#43129] (issue: {issue}42769[#42769]) Machine Learning:: * Add version and create_time to data frame analytics config {pull}43683[#43683] * [ML] Tag destination index with data frame metadata {pull}43567[#43567] * [ML] Improve message when native controller cannot connect {pull}43565[#43565] (issue: {issue}42341[#42341]) * [ML] Introduce a setting for the process connect timeout {pull}43234[#43234] * Report exponential_avg_bucket_processing_time which gives more weight to recent buckets {pull}43189[#43189] (issue: {issue}29857[#29857]) * [ML] Restrict detection of epoch timestamps in find_file_structure {pull}43188[#43188] * [ML] Adding support for geo_shape, geo_centroid, geo_point in datafeeds {pull}42969[#42969] (issue: {issue}42820[#42820]) * [ML] Add earliest and latest timestamps to field stats {pull}42890[#42890] * [ML] Change dots in CSV column names to underscores {pull}42839[#42839] (issue: {issue}26800[#26800]) * Report timing stats as part of the Job stats response {pull}42709[#42709] (issue: {issue}29857[#29857]) * [ML] Better detection of binary input in find_file_structure {pull}42707[#42707] * [ML] Add a limit on line merging in find_file_structure {pull}42501[#42501] (issue: {issue}38086[#38086]) * Implement factory methods for ValidationException {pull}41993[#41993] * [ML] Improve file structure finder timestamp format determination {pull}41948[#41948] (issues: {issue}35132[#35132], {issue}35137[#35137], {issue}38086[#38086]) * Increase maximum forecast interval to 10 years. {pull}41082[#41082] (issue: {issue}41103[#41103]) Mapping:: * Add dims parameter to dense_vector mapping {pull}43444[#43444] * Added parsing of erroneous field value {pull}42321[#42321] (issue: {issue}41372[#41372]) Network:: * Do not hang on unsupported HTTP methods {pull}43362[#43362] Ranking:: * Fix parameter value for calling data.advanceExact {pull}44205[#44205] * Distance measures for dense and sparse vectors {pull}37947[#37947] (issue: {issue}31615[#31615]) Recovery:: * Make peer recovery send file info step async {pull}43792[#43792] (issue: {issue}36195[#36195]) * Make peer recovery clean files step async {pull}43787[#43787] (issue: {issue}36195[#36195]) Reindex:: * Reindex max_docs parameter name {pull}41894[#41894] (issue: {issue}24344[#24344]) Search:: * Split search in two when made against read-only and write indices {pull}42510[#42510] (issue: {issue}40900[#40900]) * Rename SearchRequest#crossClusterSearch {pull}42363[#42363] * Allow `fields` to be set to `*` {pull}42301[#42301] (issue: {issue}39577[#39577]) * Search - enable low_level_cancellation by default. {pull}42291[#42291] (issue: {issue}26258[#26258]) * Cut over ClusterSearchShardsGroup to Writeable {pull}41788[#41788] * Disable max score optimization for queries with unbounded max scores {pull}41361[#41361] Snapshot/Restore:: * Recursive Delete on BlobContainer {pull}43281[#43281] (issue: {issue}42189[#42189]) * Add SAS Token Authentication Support to Azure Repo Plugin {pull}42982[#42982] (issue: {issue}42117[#42117]) * Enable Parallel Deletes in Azure Repository {pull}42783[#42783] * Add Ability to List Child Containers to BlobContainer {pull}42653[#42653] (issue: {issue}42189[#42189]) * Add custom metadata to snapshots {pull}41281[#41281] (issue: {issue}40638[#40638]) Store:: * Shard CLI tool always check shards {pull}41480[#41480] (issue: {issue}41298[#41298]) [[bug-7.3.0]] [float] === Bug fixes Aggregations:: * Fix incorrect calculation of how many buckets will result from a merge {pull}44461[#44461] (issue: {issue}43577[#43577]) * Set document on script when using Bytes.WithScript {pull}43390[#43390] * Bug fix to allow access to top level params in reduce script {pull}42096[#42096] (issue: {issue}42046[#42046]) Allocation:: * Do not copy initial recovery filter during split {pull}44053[#44053] (issue: {issue}43955[#43955]) * Avoid parallel reroutes in DiskThresholdMonitor {pull}43381[#43381] (issue: {issue}40174[#40174]) * Reset failed allocation counter before executing routing commands {pull}42658[#42658] (issue: {issue}39546[#39546]) * Validate routing commands using updated routing state {pull}42066[#42066] (issue: {issue}41050[#41050]) Analysis:: * Fix AnalyzeAction response serialization {pull}44284[#44284] (issue: {issue}44078[#44078]) * Actually close IndexAnalyzers contents {pull}43914[#43914] * Issue deprecation warnings for preconfigured delimited_payload_filter {pull}43684[#43684] (issues: {issue}26625[#26625], {issue}43568[#43568]) * Use preconfigured filters correctly in Analyze API {pull}43568[#43568] (issue: {issue}43002[#43002]) * Require [articles] setting in elision filter {pull}43083[#43083] (issue: {issue}43002[#43002]) Authentication:: * Fix broken short-circuit in getUnlicensedRealms {pull}44399[#44399] * Fix Token Service retry mechanism {pull}39639[#39639] CCR:: * Skip update if leader and follower settings identical {pull}44535[#44535] (issue: {issue}44521[#44521]) * Avoid stack overflow in auto-follow coordinator {pull}44421[#44421] (issue: {issue}43251[#43251]) * Avoid NPE when checking for CCR index privileges {pull}44397[#44397] (issue: {issue}44172[#44172]) * CCR should not replicate private/internal settings {pull}43067[#43067] (issue: {issue}41268[#41268]) CRUD:: * Fix NPE when rejecting bulk updates {pull}42923[#42923] * Fix "size" field in the body of AbstractBulkByScrollRequest {pull}35742[#35742] (issue: {issue}35636[#35636]) Cluster Coordination:: * Local node is discovered when cluster fails {pull}43316[#43316] * Reset state recovery after successful recovery {pull}42576[#42576] (issue: {issue}39172[#39172]) * Cluster state from API should always have a master {pull}42454[#42454] (issues: {issue}38331[#38331], {issue}38432[#38432]) * Omit non-masters in ClusterFormationFailureHelper {pull}41344[#41344] Data Frame:: * [ML][Data Frame] treat bulk index failures as an indexing failure {pull}44351[#44351] (issue: {issue}44101[#44101]) * [ML][Data Frame] responding with 409 status code when failing _stop {pull}44231[#44231] (issue: {issue}44103[#44103]) * [ML][Data Frame] adds index validations to _start data frame transform {pull}44191[#44191] (issue: {issue}44104[#44104]) * [ML] Data frame task failure do not make a 500 response {pull}44058[#44058] (issue: {issue}44011[#44011]) * [ML-DataFrame] audit message missing for autostop {pull}43984[#43984] (issue: {issue}43977[#43977]) * [ML-Data Frame] Add data frame transform cluster privileges to HLRC {pull}43879[#43879] * [ML][Data Frame] fix progress measurement for continuous transforms {pull}43838[#43838] * [ML][Data Frame] improve pivot nested field validations {pull}43548[#43548] * [ML][Data Frame] Adjusting error message {pull}43455[#43455] * [Ml Data Frame] Size the GET stats search by number of Ids requested {pull}43206[#43206] (issue: {issue}43203[#43203]) * [ML-DataFrame] rewrite start and stop to answer with acknowledged {pull}42589[#42589] (issue: {issue}42450[#42450]) * [ML Data Frame] Set DF task state to stopped when stopping {pull}42516[#42516] (issue: {issue}42441[#42441]) * [ML-DataFrame] add support for fixed_interval, calendar_interval, remove interval {pull}42427[#42427] (issues: {issue}33727[#33727], {issue}42297[#42297]) Distributed:: * Fix DefaultShardOperationFailedException subclass xcontent serialization {pull}43435[#43435] (issue: {issue}43423[#43423]) * Advance checkpoints only after persisting ops {pull}43205[#43205] * Avoid loading retention leases while writing them {pull}42620[#42620] (issue: {issue}41430[#41430]) * Do not use ifSeqNo for update requests on mixed cluster {pull}42596[#42596] (issue: {issue}42561[#42561]) * Ensure relocation target still tracked when start handoff {pull}42201[#42201] Engine:: * AsyncIOProcessor preserve thread context {pull}43729[#43729] * Account soft deletes for committed segments {pull}43126[#43126] (issue: {issue}43103[#43103]) * Prune _id of only docs below local checkpoint of safe commit {pull}43051[#43051] (issues: {issue}40741[#40741], {issue}42979[#42979]) * Improve translog corruption detection {pull}42744[#42744] (issue: {issue}42661[#42661]) Features/CAT APIs:: * Fix indices shown in _cat/indices {pull}43286[#43286] (issues: {issue}33888[#33888], {issue}38824[#38824], {issue}39933[#39933]) Features/ILM:: * Fix swapped variables in error message {pull}44300[#44300] * Account for node versions during allocation in ILM Shrink {pull}43300[#43300] (issue: {issue}41879[#41879]) * Narrow period of Shrink action in which ILM prevents stopping {pull}43254[#43254] (issue: {issue}43253[#43253]) * Make ILM force merging best effort {pull}43246[#43246] (issues: {issue}42824[#42824], {issue}43245[#43245]) Features/Indices APIs:: * Check shard limit after applying index templates {pull}44619[#44619] (issues: {issue}34021[#34021], {issue}44567[#44567], {issue}44619[#44619]) * Validate index settings after applying templates {pull}44612[#44612] (issues: {issue}34021[#34021], {issue}44567[#44567]) * Prevent NullPointerException in TransportRolloverAction {pull}43353[#43353] (issue: {issue}43296[#43296]) Features/Ingest:: * Read the default pipeline for bulk upsert through an alias {pull}41963[#41963] Features/Java High Level REST Client:: * Fix CreateRepository Requeset in HLRC {pull}43522[#43522] (issue: {issue}43521[#43521]) Features/Stats:: * Return 0 for negative "free" and "total" memory reported by the OS {pull}42725[#42725] (issue: {issue}42157[#42157]) Features/Watcher:: * NullPointerException when creating a watch with Jira action (#41922) {pull}42081[#42081] * fix unlikely bug that can prevent Watcher from restarting {pull}42030[#42030] Infra/Core:: * Add default CLI JVM options {pull}44545[#44545] (issues: {issue}219[#219], {issue}42021[#42021]) * scheduleAtFixedRate would hang {pull}42993[#42993] (issue: {issue}38441[#38441]) * Only ignore IOException when fsyncing on dirs {pull}42972[#42972] (issue: {issue}42950[#42950]) * Fix alpha build error message when generate version object from version string {pull}40406[#40406] * Bat scripts to work with JAVA_HOME with parantheses {pull}39712[#39712] (issues: {issue}30606[#30606], {issue}33405[#33405], {issue}38578[#38578], {issue}38624[#38624]) * Change licence expiration date pattern {pull}39681[#39681] (issue: {issue}39136[#39136]) Infra/Packaging:: * Restore setting up temp dir for windows service {pull}44541[#44541] * Fix the bundled jdk flag to be passed through windows startup {pull}43502[#43502] Infra/Plugins:: * Do not checksum all bytes at once in plugin install {pull}44649[#44649] (issue: {issue}44545[#44545]) Infra/REST API:: * Remove deprecated _source_exclude and _source_include from get API spec {pull}42188[#42188] Infra/Scripting:: * Allow aggregations using expressions to use _score {pull}42652[#42652] Machine Learning:: * Fix test for old cluster version >= 7.3.0 {pull}44437[#44437] * Use specific version constant for wire bwc check {pull}44316[#44316] (issue: {issue}42501[#42501]) * Update .ml-config mappings before indexing job, datafeed or df analytics config {pull}44216[#44216] (issue: {issue}44263[#44263]) * [ML] Wait for .ml-config primary before assigning persistent tasks {pull}44170[#44170] (issue: {issue}44156[#44156]) * [ML] Fix ML memory tracker lockup when inner step fails {pull}44158[#44158] (issue: {issue}44156[#44156]) * [ML] Fix datafeed checks when a concrete remote index is present {pull}43923[#43923] (issue: {issue}42113[#42113]) * [ML] Fix possible race condition when closing an opening job {pull}42506[#42506] Mapping:: * Ensure field caps doesn't error on rank feature fields. {pull}44370[#44370] (issue: {issue}44330[#44330]) * Prevent types deprecation warning for indices.exists requests {pull}43963[#43963] (issue: {issue}43905[#43905]) * Fix index_prefix sub field name on nested text fields {pull}43862[#43862] (issue: {issue}43741[#43741]) * Fix possible NPE in put mapping validators {pull}43000[#43000] (issue: {issue}37675[#37675]) * Allow big integers and decimals to be mapped dynamically. {pull}42827[#42827] (issue: {issue}37846[#37846]) Network:: * Reconnect remote cluster when seeds are changed {pull}43379[#43379] (issue: {issue}37799[#37799]) * Don't require TLS for single node clusters {pull}42826[#42826] * Fix Class Load Order in Netty4Plugin {pull}42591[#42591] (issue: {issue}42532[#42532]) Recovery:: * Ensure to access RecoveryState#fileDetails under lock {pull}43839[#43839] * Make Recovery API support `detailed` params {pull}29076[#29076] (issue: {issue}28910[#28910]) Reindex:: * Properly serialize remote query in ReindexRequest {pull}43457[#43457] (issues: {issue}43406[#43406], {issue}43456[#43456]) * Fixing handling of auto slices in bulk scroll requests {pull}43050[#43050] * Remote reindex failure parse fix {pull}42928[#42928] * Fix concurrent search and index delete {pull}42621[#42621] (issue: {issue}28053[#28053]) * Propogate version in reindex from remote search {pull}42412[#42412] (issue: {issue}31908[#31908]) SQL:: * SQL: change the size of the list of concrete indices when resolving multiple indices {pull}43878[#43878] (issue: {issue}43876[#43876]) * SQL: handle double quotes escaping {pull}43829[#43829] (issue: {issue}43810[#43810]) * SQL: add pretty printing to JSON format {pull}43756[#43756] * SQL: handle SQL not being available in a more graceful way {pull}43665[#43665] (issue: {issue}41279[#41279]) * SQL: fix NPE in case of subsequent scrolled requests for a CSV/TSV formatted response {pull}43365[#43365] (issue: {issue}43327[#43327]) * Geo: Add coerce support to libs/geo WKT parser {pull}43273[#43273] (issue: {issue}43173[#43173]) * SQL: Increase hard limit for sorting on aggregates {pull}43220[#43220] (issue: {issue}43168[#43168]) * SQL: Fix wrong results when sorting on aggregate {pull}43154[#43154] (issue: {issue}42851[#42851]) * SQL: cover the Integer type when extracting values from _source {pull}42859[#42859] (issue: {issue}42858[#42858]) Search:: * Don't use index_phrases on graph queries {pull}44340[#44340] (issue: {issue}43976[#43976]) * Fix wrong logic in `match_phrase` query with multi-word synonyms {pull}43941[#43941] (issue: {issue}43308[#43308]) * Fix UOE on search requests that match a sparse role query {pull}43668[#43668] (issue: {issue}42857[#42857]) * Fix propagation of enablePositionIncrements in QueryStringQueryBuilder {pull}43578[#43578] (issue: {issue}43574[#43574]) * Fix score mode of the MinimumScoreCollector {pull}43527[#43527] (issue: {issue}43497[#43497]) * Fix round up of date range without rounding {pull}43303[#43303] (issue: {issue}43277[#43277]) * SearchRequest#allowPartialSearchResults does not handle successful retries {pull}43095[#43095] (issue: {issue}40743[#40743]) * Wire query cache into sorting nested-filter computation {pull}42906[#42906] (issue: {issue}42813[#42813]) * Fix auto fuzziness in query_string query {pull}42897[#42897] * Fix IntervalBuilder#analyzeText to never return `null` {pull}42750[#42750] (issue: {issue}42587[#42587]) * Fix sorting on nested field with unmapped {pull}42451[#42451] (issue: {issue}33644[#33644]) * Deduplicate alias and concrete fields in query field expansion {pull}42328[#42328] Security:: * Do not swallow I/O exception getting authentication {pull}44398[#44398] (issues: {issue}44172[#44172], {issue}44397[#44397]) * Use system context for looking up connected nodes {pull}43991[#43991] (issue: {issue}43974[#43974]) * SecurityIndexSearcherWrapper doesn't always carry over caches and similarity {pull}43436[#43436] * Detect when security index is closed {pull}42191[#42191] Snapshot/Restore:: * Check again on-going snapshots/restores of indices before closing {pull}43873[#43873] * Fix Azure List by Prefix Bug {pull}42713[#42713] Store:: * Remove usage of FileSwitchDirectory {pull}42937[#42937] (issue: {issue}37111[#37111]) * Fix Infinite Loops in ExceptionsHelper#unwrap {pull}42716[#42716] (issue: {issue}42340[#42340]) Suggesters:: * Fix suggestions for empty indices {pull}42927[#42927] (issue: {issue}42473[#42473]) * Skip explain phase when only suggestions are requested {pull}41739[#41739] (issue: {issue}31260[#31260]) [[regression-7.3.0]] [float] === Regressions Infra/Core:: * Restore date aggregation performance in UTC case {pull}38221[#38221] (issue: {issue}37826[#37826]) [[upgrade-7.3.0]] [float] === Upgrades Discovery-Plugins:: * Upgrade AWS SDK to Latest Version {pull}42708[#42708] Engine:: * Upgrade to Lucene 8.1.0 {pull}42214[#42214] Infra/Core:: * Upgrade HPPC to version 0.8.1 {pull}43025[#43025] Network:: * Upgrade to Netty 4.1.36 {pull}42543[#42543] (issue: {issue}42532[#42532]) Snapshot/Restore:: * Upgrade GCS Repository Dependencies {pull}43142[#43142]