330 lines
17 KiB
Plaintext
330 lines
17 KiB
Plaintext
[[release-notes-7.8.0]]
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== {es} version 7.8.0
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Also see <<breaking-changes-7.8,Breaking changes in 7.8>>.
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[[breaking-7.8.0]]
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[float]
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=== Breaking changes
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Aggregations::
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* `value_count` aggregation optimization {pull}54854[#54854]
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Features/Indices APIs::
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* Add auto create action {pull}55858[#55858]
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Mapping::
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* Disallow changing 'enabled' on the root mapper {pull}54463[#54463] (issue: {issue}33933[#33933])
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* Fix updating include_in_parent/include_in_root of nested field {pull}54386[#54386] (issue: {issue}53792[#53792])
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[[deprecation-7.8.0]]
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[float]
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=== Deprecations
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Authentication::
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* Deprecate the `kibana` reserved user; introduce `kibana_system` user {pull}54967[#54967]
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Cluster Coordination::
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* Voting config exclusions should work with absent nodes {pull}50836[#50836] (issue: {issue}47990[#47990])
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Features/Features::
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* Add node local storage deprecation check {pull}54383[#54383] (issue: {issue}54374[#54374])
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Features/Indices APIs::
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* Deprecate local parameter for get field mapping request {pull}55014[#55014]
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Infra/Core::
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* Deprecate node local storage setting {pull}54374[#54374]
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Infra/Plugins::
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* Add xpack setting deprecations to deprecation API {pull}56290[#56290] (issue: {issue}54745[#54745])
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* Deprecate disabling basic-license features {pull}54816[#54816] (issue: {issue}54745[#54745])
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* Deprecated xpack "enable" settings should be no-ops {pull}55416[#55416] (issues: {issue}54745[#54745], {issue}54816[#54816])
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* Make xpack.ilm.enabled setting a no-op {pull}55592[#55592] (issues: {issue}54745[#54745], {issue}54816[#54816], {issue}55416[#55416])
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* Make xpack.monitoring.enabled setting a no-op {pull}55617[#55617] (issues: {issue}54745[#54745], {issue}54816[#54816], {issue}55416[#55416], {issue}55461[#55461], {issue}55592[#55592])
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* Restore xpack.ilm.enabled and xpack.slm.enabled settings {pull}57383[#57383] (issues: {issue}54745[#54745], {issue}55416[#55416], {issue}55592[#55592])
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[[feature-7.8.0]]
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[float]
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=== New features
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Aggregations::
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* Add Student's t-test aggregation support {pull}54469[#54469] (issue: {issue}53692[#53692])
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* Add support for filters to t-test aggregation {pull}54980[#54980] (issue: {issue}53692[#53692])
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* Histogram field type support for Sum aggregation {pull}55681[#55681] (issue: {issue}53285[#53285])
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* Histogram field type support for ValueCount and Avg aggregations {pull}55933[#55933] (issue: {issue}53285[#53285])
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Features/Indices APIs::
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* Add simulate template composition API _index_template/_simulate_index/{name} {pull}55686[#55686] (issue: {issue}53101[#53101])
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Geo::
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* Add geo_bounds aggregation support for geo_shape {pull}55328[#55328]
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* Add geo_shape support for geotile_grid and geohash_grid {pull}55966[#55966]
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* Add geo_shape support for the geo_centroid aggregation {pull}55602[#55602]
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* Add new point field {pull}53804[#53804]
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SQL::
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* Implement DATETIME_FORMAT function for date/time formatting {pull}54832[#54832] (issue: {issue}53714[#53714])
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* Implement DATETIME_PARSE function for parsing strings {pull}54960[#54960] (issue: {issue}53714[#53714])
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* Implement scripting inside aggs {pull}55241[#55241] (issues: {issue}29980[#29980], {issue}36865[#36865], {issue}37271[#37271])
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[[enhancement-7.8.0]]
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[float]
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=== Enhancements
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Aggregations::
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* Aggs must specify a `field` or `script` (or both) {pull}52226[#52226]
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* Expose aggregation usage in Feature Usage API {pull}55732[#55732] (issue: {issue}53746[#53746])
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* Reduce memory for big aggregations run against many shards {pull}54758[#54758]
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* Save memory in on aggs in async search {pull}55683[#55683]
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Allocation::
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* Disk decider respect watermarks for single data node {pull}55805[#55805]
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* Improve same-shard allocation explanations {pull}56010[#56010]
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Analysis::
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* Add preserve_original setting in ngram token filter {pull}55432[#55432]
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* Add preserve_original setting in edge ngram token filter {pull}55766[#55766] (issue: {issue}55767[#55767])
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* Add pre-configured “lowercase” normalizer {pull}53882[#53882] (issue: {issue}53872[#53872])
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Audit::
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* Update the audit logfile list of system users {pull}55578[#55578] (issue: {issue}37924[#37924])
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Authentication::
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* Let realms gracefully terminate the authN chain {pull}55623[#55623]
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Authorization::
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* Add reserved_ml_user and reserved_ml_admin kibana privileges {pull}54713[#54713]
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Autoscaling::
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* Rollover: refactor out cluster state update {pull}53965[#53965]
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CRUD::
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* Avoid holding onto bulk items until all completed {pull}54407[#54407]
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Cluster Coordination::
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* Add voting config exclusion add and clear API spec and integration test cases {pull}55760[#55760] (issue: {issue}48131[#48131])
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Features/CAT APIs::
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* Add support for V2 index templates to /_cat/templates {pull}55829[#55829] (issue: {issue}53101[#53101])
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Features/Indices APIs::
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* Add HLRC support for simulate index template api {pull}55936[#55936] (issue: {issue}53101[#53101])
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* Add prefer_v2_templates flag and index setting {pull}55411[#55411] (issue: {issue}53101[#53101])
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* Add warnings/errors when V2 templates would match same indices as V1 {pull}54367[#54367] (issue: {issue}53101[#53101])
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* Disallow merging existing mapping field definitions in templates {pull}57701[#57701] (issues: {issue}55607[#55607], {issue}55982[#55982], {issue}57393[#57393])
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* Emit deprecation warning if multiple v1 templates match with a new index {pull}55558[#55558] (issue: {issue}53101[#53101])
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* Guard adding the index.prefer_v2_templates settings for pre-7.8 nodes {pull}55546[#55546] (issues: {issue}53101[#53101], {issue}55411[#55411], {issue}55539[#55539])
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* Handle merging dotted object names when merging V2 template mappings {pull}55982[#55982] (issue: {issue}53101[#53101])
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* Throw exception on duplicate mappings metadata fields when merging templates {pull}57835[#57835] (issue: {issue}57701[#57701])
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* Update template v2 api rest spec {pull}55948[#55948] (issue: {issue}53101[#53101])
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* Use V2 index templates during index creation {pull}54669[#54669] (issue: {issue}53101[#53101])
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* Use V2 templates when reading duplicate aliases and ingest pipelines {pull}54902[#54902] (issue: {issue}53101[#53101])
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* Validate V2 templates more strictly {pull}56170[#56170] (issues: {issue}43737[#43737], {issue}46045[#46045], {issue}53101[#53101], {issue}53970[#53970])
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Features/Java High Level REST Client::
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* Enable support for decompression of compressed response within RestHighLevelClient {pull}53533[#53533]
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Features/Stats::
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* Fix available / total disk cluster stats {pull}32480[#32480] (issue: {issue}32478[#32478])
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Features/Watcher::
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* Delay warning about missing x-pack {pull}54265[#54265] (issue: {issue}40898[#40898])
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Geo::
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* Add geo_shape mapper supporting doc-values in Spatial Plugin {pull}55037[#55037] (issue: {issue}53562[#53562])
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Infra/Core::
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* Decouple Environment from DiscoveryNode {pull}54373[#54373]
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* Ensure that the output of node roles are sorted {pull}54376[#54376] (issue: {issue}54370[#54370])
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* Reintroduce system index APIs for Kibana {pull}54858[#54858] (issues: {issue}52385[#52385], {issue}53912[#53912])
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* Schedule commands in current thread context {pull}54187[#54187] (issue: {issue}17143[#17143])
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* Start resource watcher service early {pull}54993[#54993] (issue: {issue}54867[#54867])
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Infra/Packaging::
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* Make Windows JAVA_HOME handling consistent with Linux {pull}55261[#55261] (issue: {issue}55134[#55134])
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Infra/REST API::
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* Add validation to the usage service {pull}54617[#54617]
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Infra/Scripting::
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* Scripting: stats per context in nodes stats {pull}54008[#54008] (issue: {issue}50152[#50152])
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Machine Learning::
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* Add effective max model memory limit to ML info {pull}55529[#55529] (issue: {issue}63942[#63942])
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* Add loss_function to regression {pull}56118[#56118]
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* Add new inference_config field to trained model config {pull}54421[#54421]
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* Add failed_category_count to model_size_stats {pull}55716[#55716] (issue: {issue}1130[#1130])
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* Add prediction_field_type to inference config {pull}55128[#55128]
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* Allow a certain number of ill-formatted rows when delimited format is specified {pull}55735[#55735] (issue: {issue}38890[#38890])
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* Apply default timeout in StopDataFrameAnalyticsAction.Request {pull}55512[#55512]
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* Create an annotation when a model snapshot is stored {pull}53783[#53783] (issue: {issue}52149[#52149])
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* Do not execute ML CRUD actions when upgrade mode is enabled {pull}54437[#54437] (issue: {issue}54326[#54326])
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* Make find_file_structure recognize Kibana CSV report timestamps {pull}55609[#55609] (issue: {issue}55586[#55586])
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* More advanced model snapshot retention options {pull}56125[#56125] (issue: {issue}52150[#52150])
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* Return assigned node in start/open job/datafeed response {pull}55473[#55473] (issue: {issue}54067[#54067])
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* Skip daily maintenance activity if upgrade mode is enabled {pull}54565[#54565] (issue: {issue}54326[#54326])
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* Start gathering and storing inference stats {pull}53429[#53429]
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* Unassign data frame analytics tasks in SetUpgradeModeAction {pull}54523[#54523] (issue: {issue}54326[#54326])
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* Speed up anomaly detection for the lat_long function {ml-pull}1102[#1102]
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* Reduce CPU scheduling priority of native analysis processes to favor the ES
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JVM when CPU is constrained. This change is implemented only for Linux and macOS,
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not for Windows {ml-pull}1109[#1109]
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* Take `training_percent` into account when estimating memory usage for
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classification and regression {ml-pull}1111[#1111]
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* Support maximize minimum recall when assigning class labels for multiclass
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classification {ml-pull}1113[#1113]
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* Improve robustness of anomaly detection to bad input data {ml-pull}1114[#1114]
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* Add new `num_matches` and `preferred_to_categories` fields to category output
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{ml-pull}1062[#1062]
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* Add mean squared logarithmic error (MSLE) for regression {ml-pull}1101[#1101]
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* Add pseudo-Huber loss for regression {ml-pull}1168[#1168]
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* Reduce peak memory usage and memory estimates for classification and regression
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{ml-pull}1125[#1125].)
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* Reduce variability of classification and regression results across our target
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operating systems {ml-pull}1127[#1127]
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* Switch data frame analytics model memory estimates from kilobytes to
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megabytes {ml-pull}1126[#1126] (issue: {issue}54506[#54506])
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* Add a {ml} native code build for Linux on AArch64 {ml-pull}1132[#1132],
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{ml-pull}1135[#1135]
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* Improve data frame analytics runtime by optimising memory alignment for intrinsic
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operations {ml-pull}1142[#1142]
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* Fix spurious anomalies for count and sum functions after no data are received
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for long periods of time {ml-pull}1158[#1158]
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* Improve false positive rates from periodicity test for time series anomaly
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detection {ml-pull}1177[#1177]
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* Break progress reporting of data frame analyses into multiple phases {ml-pull}1179[#1179]
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* Really centre the data before training for classification and regression begins. This
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means we can choose more optimal smoothing bias and should reduce the number of trees
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{ml-pull}1192[#1192]
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Mapping::
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* Merge V2 index/component template mappings in specific manner {pull}55607[#55607] (issue: {issue}53101[#53101])
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Recovery::
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* Avoid copying file chunks in peer covery {pull}56072[#56072] (issue: {issue}55353[#55353])
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* Retry failed peer recovery due to transient errors {pull}55353[#55353]
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SQL::
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* Add BigDecimal support to JDBC {pull}56015[#56015] (issue: {issue}43806[#43806])
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* Drop BASE TABLE type in favour for just TABLE {pull}54836[#54836]
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* Relax version lock between server and clients {pull}56148[#56148]
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Search::
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* Consolidate DelayableWriteable {pull}55932[#55932]
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* Exists queries to MatchNoneQueryBuilder when the field is unmapped {pull}54857[#54857]
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* Rewrite wrapper queries to match_none if possible {pull}55271[#55271]
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* SearchService#canMatch takes into consideration the alias filter {pull}55120[#55120] (issue: {issue}55090[#55090])
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Snapshot/Restore::
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* Add GCS support for searchable snapshots {pull}55403[#55403]
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* Allocate searchable snapshots with the balancer {pull}54889[#54889] (issues: {issue}50999[#50999], {issue}54729[#54729])
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* Allow bulk snapshot deletes to abort {pull}56009[#56009] (issue: {issue}55773[#55773])
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* Allow deleting multiple snapshots at once {pull}55474[#55474]
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* Allow searching of snapshot taken while indexing {pull}55511[#55511] (issue: {issue}50999[#50999])
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* Allow to prewarm the cache for searchable snapshot shards {pull}55322[#55322]
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* Enable prewarming by default for searchable snapshots {pull}56201[#56201] (issue: {issue}55952[#55952])
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* Permit searches to be concurrent to prewarming {pull}55795[#55795]
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* Reduce contention in CacheFile.fileLock() method {pull}55662[#55662]
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* Require soft deletes for searchable snapshots {pull}55453[#55453]
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* Searchable Snapshots should respect max_restore_bytes_per_sec {pull}55952[#55952]
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* Update the HDFS version used by HDFS Repo {pull}53693[#53693]
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* Use streaming reads for GCS {pull}55506[#55506] (issue: {issue}55505[#55505])
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* Use workers to warm cache parts {pull}55793[#55793] (issue: {issue}55322[#55322])
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Task Management::
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* Add indexName in update-settings task name {pull}55714[#55714]
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* Add scroll info to search task description {pull}54606[#54606]
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* Broadcast cancellation to only nodes have outstanding child tasks {pull}54312[#54312] (issues: {issue}50990[#50990], {issue}51157[#51157])
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* Support hierarchical task cancellation {pull}54757[#54757] (issue: {issue}50990[#50990])
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Transform::
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* Add throttling {pull}56007[#56007] (issue: {issue}54862[#54862])
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[[bug-7.8.0]]
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[float]
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=== Bug fixes
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Aggregations::
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* Add analytics plugin usage stats to _xpack/usage {pull}54911[#54911] (issue: {issue}54847[#54847])
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* Aggregation support for Value Scripts that change types {pull}54830[#54830] (issue: {issue}54655[#54655])
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* Allow terms agg to default to depth first {pull}54845[#54845]
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* Clean up how pipeline aggs check for multi-bucket {pull}54161[#54161] (issue: {issue}53215[#53215])
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* Fix auto_date_histogram serialization bug {pull}54447[#54447] (issues: {issue}54382[#54382], {issue}54429[#54429])
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* Fix error massage for unknown value type {pull}55821[#55821] (issue: {issue}55727[#55727])
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* Fix scripted metric in CCS {pull}54776[#54776] (issue: {issue}54758[#54758])
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* Use Decimal formatter for Numeric ValuesSourceTypes {pull}54366[#54366] (issue: {issue}54365[#54365])
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Allocation::
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* Fix Broken ExistingStoreRecoverySource Deserialization {pull}55657[#55657] (issue: {issue}55513[#55513])
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Features/ILM+SLM::
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* ILM stop step execution if writeIndex is false {pull}54805[#54805]
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Features/Indices APIs::
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* Fix NPE in MetadataIndexTemplateService#findV2Template {pull}54945[#54945]
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* Fix creating filtered alias using now in a date_nanos range query failed {pull}54785[#54785] (issue: {issue}54315[#54315])
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* Fix simulating index templates without specified index {pull}56295[#56295] (issues: {issue}53101[#53101], {issue}56255[#56255])
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* Validate non-negative priorities for V2 index templates {pull}56139[#56139] (issue: {issue}53101[#53101])
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Features/Watcher::
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* Ensure watcher email action message ids are always unique {pull}56574[#56574]
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Infra/Core::
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* Add generic Set support to streams {pull}54769[#54769] (issue: {issue}54708[#54708])
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Machine Learning::
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* Fix GET _ml/inference so size param is respected {pull}57303[#57303] (issue: {issue}57298[#57298])
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* Fix file structure finder multiline merge max for delimited formats {pull}56023[#56023]
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* Validate at least one feature is available for DF analytics {pull}55876[#55876] (issue: {issue}55593[#55593])
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* Trap and fail if insufficient features are supplied to data frame analyses.
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Otherwise, classification and regression got stuck at zero analyzing progress
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{ml-pull}1160[#1160] (issue: {issue}55593[#55593])
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* Make categorization respect the model_memory_limit {ml-pull}1167[#1167]
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(issue: {ml-issue}1130[#1130])
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* Respect user overrides for max_trees for classification and regression
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{ml-pull}1185[#1185]
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* Reset memory status from soft_limit to ok when pruning is no longer required
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{ml-pull}1193[#1193] (issue: {ml-issue}1131[#1131])
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* Fix restore from training state for classification and regression
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{ml-pull}1197[#1197]
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* Improve the initialization of seasonal components for anomaly detection
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{ml-pull}1201[#1201] (issue: {ml-issue}#1178[#1178])
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Network::
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* Fix issue with pipeline releasing bytes early {pull}54458[#54458]
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* Handle TLS file updates during startup {pull}54999[#54999] (issue: {issue}54867[#54867])
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SQL::
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* Fix DATETIME_PARSE behaviour regarding timezones {pull}56158[#56158] (issue: {issue}54960[#54960])
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Search::
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* Don't expand default_field in query_string before required {pull}55158[#55158] (issue: {issue}53789[#53789])
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* Fix `time_zone` for `query_string` and date fields {pull}55881[#55881] (issue: {issue}55813[#55813])
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Security::
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* Fix certutil http for empty password with JDK 11 and lower {pull}55437[#55437] (issue: {issue}55386[#55386])
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Transform::
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* Fix count when matching exact ids {pull}56544[#56544] (issue: {issue}56196[#56196])
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* Fix http status code when bad scripts are provided {pull}56117[#56117] (issue: {issue}55994[#55994])
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[[regression-7.8.0]]
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[float]
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=== Regressions
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Infra/Scripting::
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* Don't double-wrap expression values {pull}54432[#54432] (issue: {issue}53661[#53661])
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