[[release-notes-7.10.2]]
== {es} version 7.10.2

Also see <<breaking-changes-7.10,Breaking changes in 7.10>>.

[discrete]
[[security-updates-7.10.2]]
=== Security updates

* An information disclosure flaw was found in the {es} async search API.
Users who execute an async search will store the HTTP headers.
A user with the ability to read the `.tasks` index could obtain
sensitive request headers of other users in the cluster.
All versions of {es} between 7.7.0 and 7.10.1 are affected by this flaw.
You must upgrade to {es} version 7.10.2 to obtain the fix.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22132[CVE-2021-22132]

[[known-issues-7.10.2]]
[discrete]
=== Known issues

* Snapshot and restore: If an index is deleted while the cluster is
concurrently taking more than one snapshot then there is a risk that one of the
snapshots may never complete and also that some shard data may be lost from the
repository, causing future restore operations to fail. To mitigate this
problem, prevent concurrent snapshot operations by setting
`snapshot.max_concurrent_operations: 1`.
+
This issue is fixed in {es} versions 7.13.1 and later. For more details, see
{es-issue}73456[#73456].

[[bug-7.10.2]]
[float]
=== Bug fixes

EQL::
* Fix early trimming of in-flight data {es-pull}66493[#66493]

Engine::
* Fix the earliest last modified age of translog issue. {es-pull}64753[#64753]
* Fix the version and term field initialization error of NoOpResult {es-pull}66269[#66269] (issue: {es-issue}66267[#66267])

Features/Data streams::
* Allow more legit cases in Metadata.Builder.validateDataStreams {es-pull}65791[#65791]

Features/Features::
* Make FilterAllocationDecider totally ignore tier-based allocation settings {es-pull}67019[#67019] (issue: {es-issue}66679[#66679])

Features/Ingest::
* Fix whitespace as a separator in CSV processor {es-pull}67045[#67045] (issue: {es-issue}67013[#67013])

Highlighting::
* Fix bug where fvh fragments could be loaded from wrong doc {es-pull}65641[#65641] (issues: {es-issue}60179[#60179], {es-issue}65533[#65533])

Features/ILM+SLM::
* Create AllocationDeciders in the main method of the ILM step {es-pull}65037[#65037] (issue: {es-issue}64529[#64529])

Infra/REST API::
* Fix cat tasks api params in spec and handler {es-pull}66272[#66272] (issue: {es-issue}59493[#59493])
* Mark Cat Tasks API as experimental in rest-api-spec {es-pull}66536[#66536] (issues: {es-issue}51628[#51628], {es-issue}65823[#65823])
* Mark Task APIs as experimental in rest-api-spec {es-pull}65823[#65823] (issue: {es-issue}51628[#51628])

Infra/Scripting::
* Fix static inner class resolution in Painless {es-pull}67027[#67027] (issue: {es-issue}66823[#66823])

Infra/Settings::
* Correctly determine defaults of settings which depend on other settings {es-pull}65989[#65989] (issue: {es-issue}47890[#47890])
* Do not interpret SecurityException in KeystoreAwareCommand {es-pull}65366[#65366]

QL::
* Handle IP type fields extraction with ignore_malformed property {es-pull}66622[#66622] (issue: {es-issue}66675[#66675])

Machine Learning::
* Change to only calculate model size on initial load to prevent slow cache promotions {es-pull}66451[#66451]

Network::
* Ensure notify when proxy connections disconnect {es-pull}65697[#65697] (issue: {es-issue}65443[#65443])
* Fix AbstractClient#execute Listener Leak {es-pull}65415[#65415] (issue: {es-issue}65405[#65405])

SQL::
* Abort sorting in case of local agg sort queue overflow {es-pull}65687[#65687] (issue: {es-issue}65685[#65685])
* Verify filter's condition type {es-pull}66268[#66268] (issue: {es-issue}66254[#66254])

Search::
* Fix regressions around nested hits and disabled _source {es-pull}66572[#66572] (issues: {es-issue}60494[#60494], {es-issue}66524[#66524])
* Make sure shared source always represents the top-level root document {es-pull}66725[#66725] (issues: {es-issue}60494[#60494], {es-issue}66577[#66577])

Security::
* Store and use only internal security headers {es-pull}66365[#66365]

Snapshot/Restore::
* Also reroute after shard snapshot size fetch failure {es-pull}65436[#65436] (issues: {es-issue}61906[#61906], {es-issue}64372[#64372])


[[release-notes-7.10.1]]
== {es} version 7.10.1

Also see <<breaking-changes-7.10,Breaking changes in 7.10>>.

[[known-issues-7.10.1]]
[discrete]
=== Known issues
* In {es} 7.10.0 there were several regressions around loading nested documents. These have been addressed in {es} 7.10.2.
** With multiple layers of nested `inner_hits`, we can fail to load the _source. ({es-issue}66577[#66577])
** With nested `inner_hits`, the fast vector highlighter may load snippets from the wrong document. ({es-issue}65533[#65533])
** When _source is disabled, we can fail load nested `inner_hits` and `top_hits`. ({es-issue}66572[#66572])

* Snapshot and restore: If an index is deleted while the cluster is
concurrently taking more than one snapshot then there is a risk that one of the
snapshots may never complete and also that some shard data may be lost from the
repository, causing future restore operations to fail. To mitigate this
problem, prevent concurrent snapshot operations by setting
`snapshot.max_concurrent_operations: 1`.
+
This issue is fixed in {es} versions 7.13.1 and later. For more details, see
{es-issue}73456[#73456].

[[bug-7.10.1]]
[float]
=== Bug fixes

Allocation::
* Fix NPE in toString of FailedShard {es-pull}64770[#64770]

CCR::
* Stop renew retention leases when follow task fails {es-pull}65168[#65168]

CRUD::
* Propogate rejected execution during bulk actions {es-pull}64842[#64842] (issue: {es-issue}64450[#64450])

Cluster Coordination::
* Fix up roles after rolling upgrade {es-pull}64693[#64693] (issue: {es-issue}62840[#62840])

EQL::
* Allow null tiebreakers inside ordinals/sequences {es-pull}65033[#65033] (issue: {es-issue}64706[#64706])
* Fix "resource not found" exception on existing EQL async search {es-pull}65167[#65167] (issue: {es-issue}65108[#65108])
* Fix aggressive/incorrect until policy in sequences {es-pull}65156[#65156]

Features/ILM+SLM::
* Fix SetSingleNodeAllocateStep for data tier deployments {es-pull}64679[#64679]

Features/Watcher::
* Watcher understands hidden expand wildcard value {es-pull}65332[#65332] (issue: {es-issue}65148[#65148])

Geo::
* Fix handling of null values in geo_point {es-pull}65307[#65307] (issue: {es-issue}65306[#65306])

Infra/Core::
* Fix date math hidden index resolution {es-pull}65236[#65236] (issue: {es-issue}65157[#65157])

Infra/Scripting::
* Fix Painless casting bug in compound assignment for String {es-pull}65329[#65329]
* Revert null-safe behavior to error at run-time instead of compile-time {es-pull}65099[#65099] (issue: {es-issue}65098[#65098])

Machine Learning::
* Extract dependent variable's mapping correctly in case of a multi-field {es-pull}63813[#63813]
* Fix bug with data frame analytics classification test data sampling when using custom feature processors {es-pull}64727[#64727]
* Fix custom feature processor extraction bugs around boolean fields and custom one_hot feature output order {es-pull}64937[#64937]
* Protect against stack overflow while loading data frame analytics data {es-pull}64947[#64947]
* Fix a bug where the peak_model_bytes value of the model_size_stats object was not restored from the anomaly detector job snapshots {ml-pull}1572[#1572]

Mapping::
* Correctly serialize search-as-you-type analyzer {es-pull}65359[#65359] (issue: {es-issue}65319[#65319])
* Unused boost parameter should not throw mapping exception {es-pull}64999[#64999] (issue: {es-issue}64982[#64982])

SQL::
* Fix the return type problem in the sign function {es-pull}64845[#64845]

Search::
* Fix cacheability of custom LongValuesSource in TermsSetQueryBuilder {es-pull}65367[#65367]
* SourceValueFetcher should check all possible source fields {es-pull}65375[#65375]

Snapshot/Restore::
* Fix Broken Error Handling in CacheFile#acquire {es-pull}65342[#65342] (issue: {es-issue}65302[#65302])
* Fix Two Snapshot Clone State Machine Bugs {es-pull}65042[#65042]


[[release-notes-7.10.0]]
== {es} version 7.10.0

Also see <<breaking-changes-7.10,Breaking changes in 7.10>>.

[discrete]
[[security-updates-7.10.0]]
=== Security updates

* {es} versions before 7.10.0 and 6.8.14 have an information
disclosure issue when audit logging and the `emit_request_body` option are
enabled. The {es} audit log could contain sensitive information,
such as password hashes or authentication tokens. This could allow an
{es} administrator to view these details.
You must upgrade to {es} version 7.10.0 to obtain the fix.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-7021[CVE-2020-7021]


[[known-issues-7.10.0]]
[discrete]
=== Known issues

* SQL: If a `WHERE` clause contains at least two relational operators joined by
`AND`, of which one is a comparison (`<=`, `<`, `>=`, `>`) and another one is
an inequality (`!=`, `<>`), both against literals or foldable expressions, the
inequality will be ignored. The workaround is to substitute the inequality
with a `NOT IN` operator.
+
We have fixed this issue in {es} 7.10.1 and later versions. For more details,
see {es-issue}65488[#65488].

* There were several regressions around loading nested documents. These have been addressed in {es} 7.10.2.
** With multiple layers of nested `inner_hits`, we can fail to load the _source. ({es-issue}66577[#66577])
** With nested `inner_hits`, the fast vector highlighter may load snippets from the wrong document. ({es-issue}65533[#65533])
** When _source is disabled, we can fail load nested `inner_hits` and `top_hits`. ({es-issue}66572[#66572])

* Snapshot and restore: If an index is deleted while the cluster is
concurrently taking more than one snapshot then there is a risk that one of the
snapshots may never complete and also that some shard data may be lost from the
repository, causing future restore operations to fail. To mitigate this
problem, prevent concurrent snapshot operations by setting
`snapshot.max_concurrent_operations: 1`.
+
This issue is fixed in {es} versions 7.13.1 and later. For more details, see
{es-issue}73456[#73456].

[[breaking-7.10.0]]
[float]
=== Breaking changes

Authentication::
* API key name should always be required for creation {es-pull}59836[#59836] (issue: {es-issue}59484[#59484])

Network::
* Set specific keepalive options by default on supported platforms {es-pull}59278[#59278]



[[breaking-java-7.10.0]]
[float]
=== Breaking Java changes

Machine Learning::
* Deprecate allow_no_jobs and allow_no_datafeeds in favor of allow_no_match {es-pull}60601[#60601] (issue: {es-issue}60642[#60642])

Mapping::
* Pass SearchLookup supplier through to fielddataBuilder {es-pull}61430[#61430] (issue: {es-issue}59332[#59332])



[[deprecation-7.10.0]]
[float]
=== Deprecations

Cluster Coordination::
* Deprecate and ignore join timeout {es-pull}60872[#60872] (issue: {es-issue}60873[#60873])

Machine learning::
* Renames \*/inference* APIs to \*/trained_models* {es-pull}63097[#63097]

[[feature-7.10.0]]
[float]
=== New features

Aggregations::
* Add rate aggregation {es-pull}61369[#61369] (issue: {es-issue}60674[#60674])

Features/Features::
* Add data tiers (hot, warm, cold, frozen) as custom node roles {es-pull}60994[#60994] (issue: {es-issue}60848[#60848])
* Allocate newly created indices on data_hot tier nodes {es-pull}61342[#61342] (issue: {es-issue}60848[#60848])

Features/ILM+SLM::
* ILM migrate data between tiers {es-pull}61377[#61377] (issue: {es-issue}60848[#60848])
* ILM: add force-merge step to searchable snapshots action {es-pull}60819[#60819] (issues: {es-issue}53488[#53488], {es-issue}56215[#56215])

Machine Learning::
* Implement AucRoc metric for classification {es-pull}60502[#60502] (issue: {es-issue}62160[#62160])

Mapping::
* Introduce 64-bit unsigned long field type {es-pull}60050[#60050] (issue: {es-issue}32434[#32434])

Search::
* Add search 'fields' option to support high-level field retrieval {es-pull}60100[#60100] (issues: {es-issue}49028[#49028], {es-issue}55363[#55363])



[[enhancement-7.10.0]]
[float]
=== Enhancements

Aggregations::
* Adds hard_bounds to histogram aggregations {es-pull}59175[#59175] (issue: {es-issue}50109[#50109])
* Allocate slightly less per bucket {es-pull}59740[#59740]
* Improve reduction of terms aggregations {es-pull}61779[#61779] (issue: {es-issue}51857[#51857])
* Speed up date_histogram by precomputing ranges {es-pull}61467[#61467]

Analysis::
* Support ignore_keywords flag for word delimiter graph token filter {es-pull}59563[#59563] (issue: {es-issue}59491[#59491])

Authentication::
* Cache API key doc to reduce traffic to the security index {es-pull}59376[#59376] (issues: {es-issue}53940[#53940], {es-issue}55836[#55836])
* Include authentication type for the authenticate response {es-pull}61247[#61247] (issue: {es-issue}61130[#61130])
* Oidc additional client auth types {es-pull}58708[#58708]
* Warn about unlicensed realms if no auth token can be extracted {es-pull}61402[#61402] (issue: {es-issue}61090[#61090])

Authorization::
* Add DEBUG logging for undefined role mapping field {es-pull}61246[#61246] (issue: {es-issue}48562[#48562])
* Add more context to index access denied errors {es-pull}60357[#60357] (issue: {es-issue}42166[#42166])

CRUD::
* Add configured indexing memory limit to node stats {es-pull}60342[#60342]
* Dedicated threadpool for system index writes {es-pull}61655[#61655]

Cluster Coordination::
* Add more useful toString on cluster state observers {es-pull}60277[#60277]
* Fail invalid incremental cluster state writes {es-pull}61030[#61030]
* Provide option to allow writes when master is down {es-pull}60605[#60605]

Distributed::
* Detect noop of update index settings {es-pull}61348[#61348]
* Thread safe clean up of LocalNodeModeListeners {es-pull}59932[#59932] (issue: {es-issue}59801[#59801])

Features/CAT APIs::
* Adding Hit counts and Miss counts for QueryCache exposed through REST API {es-pull}60114[#60114] (issue: {es-issue}48645[#48645])

Features/Features::
* Add aggregation list to node info {es-pull}60074[#60074] (issue: {es-issue}52057[#52057])
* Adding new `require_alias` option to indexing requests {es-pull}58917[#58917] (issue: {es-issue}55267[#55267])

Features/ILM+SLM::
* Move internal index templates to composable templates {es-pull}61457[#61457]

Features/Ingest::
* Add network from MaxMind Geo ASN database {es-pull}61676[#61676]
* Allow_duplicates option for append processor {es-pull}61916[#61916] (issue: {es-issue}57543[#57543])
* Configurable output format for date processor {es-pull}61324[#61324] (issue: {es-issue}42523[#42523])
* Enhance the ingest node simulate verbose output  {es-pull}60433[#60433] (issue: {es-issue}56004[#56004])
* Per processor description for verbose simulate {es-pull}58207[#58207] (issue: {es-issue}57906[#57906])
* Preserve grok pattern ordering and add sort option {es-pull}61671[#61671] (issue: {es-issue}40819[#40819])

Features/Java High Level REST Client::
* HLRC: UpdateByQuery API with wait_for_completion being false {es-pull}58552[#58552] (issues: {es-issue}35202[#35202], {es-issue}46350[#46350])

Infra/Core::
* Add logstash system index APIs {es-pull}53350[#53350]
* Deprecate REST access to System Indices {es-pull}60945[#60945]
* Speed up Compression Logic by Pooling Resources {es-pull}61358[#61358]
* System index reads in separate threadpool {es-pull}57936[#57936] (issues: {es-issue}37867[#37867], {es-issue}50251[#50251])

Infra/Logging::
* Do not create two loggers for DeprecationLogger {es-pull}58435[#58435]
* Header warning logging refactoring {es-pull}55941[#55941] (issues: {es-issue}52369[#52369], {es-issue}55699[#55699])
* Write deprecation logs to a data stream {es-pull}61484[#61484] (issues: {es-issue}46106[#46106], {es-issue}61474[#61474])

Infra/Packaging::
* Add UBI docker builds {es-pull}60742[#60742]
* Upgrade Centos version in Dockerfile to 8 {es-pull}59019[#59019]

Infra/Resiliency::
* Remove node from cluster when node locks broken {es-pull}61400[#61400] (issues: {es-issue}52680[#52680], {es-issue}58373[#58373])

Infra/Scripting::
* Augment String with sha1 and sha256 {es-pull}59671[#59671] (issue: {es-issue}59633[#59633])
* Converts casting and def support {es-pull}61350[#61350] (issue: {es-issue}59647[#59647])

Machine Learning::
* Add a "verbose" option to the data frame analytics stats endpoint {es-pull}59589[#59589] (issue: {es-issue}59125[#59125])
* Add new include flag to get trained models API for model training metadata {es-pull}61922[#61922]
* Add new feature_processors field for data frame analytics {es-pull}60528[#60528] (issue: {es-issue}59327[#59327])
* Add new n_gram_encoding custom processor {es-pull}61578[#61578]
* During nightly maintenance delete jobs whose original deletion tasks were lost {es-pull}60121[#60121] (issue: {es-issue}42840[#42840])
* Suspend persistence of trained model stats when ML upgrade mode is enabled {es-pull}61143[#61143]
* Calculate total feature importance to store with model metadata {ml-pull}1387[#1387]
* Change outlier detection feature_influence format to array with nested objects {ml-pull}1475[#1475], {es-pull}62068[#62068]
* Add timeouts to named pipe connections {ml-pull}1514[#1514], {es-pull}62993[#62993] (issue: {ml-issue}1504[#1504])

Mapping::
* Add field type for version strings {es-pull}59773[#59773] (issue: {es-issue}48878[#48878])
* Allow [null] values in [null_value] {es-pull}61798[#61798] (issues: {es-issue}7978[#7978], {es-issue}58823[#58823])
* Allow metadata fields in the _source {es-pull}61590[#61590] (issue: {es-issue}58339[#58339])

Network::
* Improve deserialization failure logging {es-pull}60577[#60577] (issue: {es-issue}38939[#38939])
* Log and track open/close of transport connections {es-pull}60297[#60297]

Performance::
* Speed up empty highlighting many fields {es-pull}61860[#61860]

SQL::
* Add option to provide the delimiter for the CSV format {es-pull}59907[#59907] (issue: {es-issue}41634[#41634])
* Implement DATE_PARSE function for parsing strings into DATE values {es-pull}57391[#57391] (issue: {es-issue}54962[#54962])
* Implement FORMAT function {es-pull}55454[#55454] (issue: {es-issue}54965[#54965])

Search::
* Avoid reloading _source for every inner hit {es-pull}60494[#60494] (issue: {es-issue}32818[#32818])
* Cancel multisearch when http connection closed {es-pull}61399[#61399]
* Enable cancellation for msearch requests {es-pull}61337[#61337]
* Executes incremental reduce in the search thread pool {es-pull}58461[#58461] (issues: {es-issue}51857[#51857], {es-issue}53411[#53411])
* Introduce point in time APIs in x-pack basic {es-pull}61062[#61062] (issues: {es-issue}26472[#26472], {es-issue}46523[#46523])
* ParametrizedFieldMapper to run validators against default value {es-pull}60042[#60042] (issue: {es-issue}59332[#59332])
* Add case insensitive flag for "term" family of queries {es-pull}61596[#61596] (issue: {es-issue}61546[#61546])
* Add case insensitive support for regex queries {es-pull}59441[#59441]
* Tweak toXContent implementation of ParametrizedFieldMapper {es-pull}59968[#59968]
* Implement fields value fetching for the `text`, `search_as_you_type` and `token_count` field types {es-pull}63515[#63515]
* Make term/prefix/wildcard/regex query parsing more lenient, with respect to the `case_insensitive` flag {es-pull}63926[#63926] (issue: {es-issue}63893[#63893])

Snapshot/Restore::
* Add repositories metering API {es-pull}60371[#60371]
* Clone Snapshot API {es-pull}61839[#61839]
* Determine shard size before allocating shards recovering from snapshots {es-pull}61906[#61906]
* Introduce index based snapshot blob cache for Searchable Snapshots {es-pull}60522[#60522]
* Validate snapshot UUID during restore {es-pull}59601[#59601] (issue: {es-issue}50999[#50999])

Store::
* Report more details of unobtainable ShardLock {es-pull}61255[#61255] (issue: {es-issue}38807[#38807])


Transform::
* Add support for missing bucket {es-pull}59591[#59591] (issues: {es-issue}42941[#42941], {es-issue}55102[#55102])



[[bug-7.10.0]]
[float]
=== Bug fixes

Aggregations::
* Fix AOOBE when setting min_doc_count to 0 in significant_terms {es-pull}60823[#60823] (issues: {es-issue}60683[#60683], {es-issue}60824[#60824])
* Make sure non-collecting aggs include sub-aggs {es-pull}64214[#64214] (issue: {es-issue}64142[#64142])
* Composite aggregation must check live docs when the index is sorted {es-pull}63864[#63864]
* Fix broken parent and child aggregator {es-pull}63811[#63811]

Allocation::
* Fix scheduling of ClusterInfoService#refresh {es-pull}59880[#59880]

Authorization::
* Fix doc-update interceptor for indices with DLS and FLS {es-pull}61516[#61516]
* Report anonymous roles in authenticate response {es-pull}61355[#61355] (issues: {es-issue}47195[#47195], {es-issue}53453[#53453], {es-issue}57711[#57711], {es-issue}57853[#57853])
* Add view_index_metadata privilege over metricbeat-* for monitoring agent {es-pull}63750[#63750] (issue: {es-issue}63750[#63750])

CRUD::
* Propagate forceExecution when acquiring permit {es-pull}60634[#60634] (issue: {es-issue}60359[#60359])

Cluster Coordination::
* Reduce allocations when persisting cluster state {es-pull}61159[#61159]

Distributed::
* Fix cluster health rest api wait_for_no_initializing_shards bug {es-pull}58379[#58379]
* Fix cluster health when closing {es-pull}61709[#61709]

Engine::
* Fix estimate size of translog operations {es-pull}59206[#59206]

Features/ILM+SLM::
* Fix ILM history index settings {es-pull}61880[#61880] (issues: {es-issue}61457[#61457], {es-issue}61863[#61863])
* Ensure cancelled SLM jobs do not continue to run {es-pull}63762[#63762] (issue: {es-issue}63754[#63754])

Features/Java Low Level REST Client::
* Handle non-default port in Cloud-Id {es-pull}61581[#61581]

Features/Stats::
* Remove sporadic min/max usage estimates from stats {es-pull}59755[#59755]

Features/Watcher::
* Correct the query dsl for watching elasticsearch version {es-pull}58321[#58321] (issue: {es-issue}58261[#58261])
* Fix passing params to template or script failed in watcher {es-pull}58559[#58559] (issue: {es-issue}57625[#57625])

Geo::
* Fix wrong NaN comparison  {es-pull}61795[#61795] (issue: {es-issue}48207[#48207])

Infra/Core::
* Throws IndexNotFoundException in TransportGetAction for unknown System indices {es-pull}61785[#61785] (issue: {es-issue}57936[#57936])
* Handle missing logstash index exceptions {es-pull}63698[#63698]
* XPack Usage API should run on MANAGEMENT threads {es-pull}64160[#64160]

Infra/Packaging::
* Allow running the Docker image with a non-default group {es-pull}61194[#61194] (issue: {es-issue}60864[#60864])
* Set the systemd initial timeout to 75 seconds {es-pull}60345[#60345] (issue: {es-issue}60140[#60140])

Machine Learning::
* Adjusting inference processor to support foreach usage {es-pull}60915[#60915] (issue: {es-issue}60867[#60867])
* Get data frame analytics jobs stats API can return multiple responses if more than one error {es-pull}60900[#60900] (issue: {es-issue}60876[#60876])
* Do not mark the data frame analytics job as FAILED when a failure occurs after the node is shutdown {es-pull}61331[#61331] (issue: {es-issue}60596[#60596])
* Improve handling of exception while starting data frame analytics process {es-pull}61838[#61838] (issue: {es-issue}61704[#61704])
* Fix progress on resume after final training has completed for classification and regression. Previously, progress was shown stuck at zero for final training. {ml-pull}1443[#1443]
* Avoid potential "Failed to compute quantile" and "No values added to quantile sketch" log errors training regression and classification models if there are features with mostly missing values {ml-pull}1500[#1500]
* Correct the anomaly detection job model state `min_version` {ml-pull}1546[#1546]

Mapping::
* Improve 'ignore_malformed' handling for dates {es-pull}60211[#60211] (issue: {es-issue}52634[#52634])

Network::
* Let `isInetAddress` utility understand the scope ID on ipv6 {es-pull}60172[#60172] (issue: {es-issue}60115[#60115])
* Suppress noisy SSL exceptions {es-pull}61359[#61359]

Search::
* Allows nanosecond resolution in search_after {es-pull}60328[#60328] (issue: {es-issue}52424[#52424])
* Consolidate validation for 'docvalue_fields' {es-pull}59473[#59473]
* Correct how field retrieval handles multifields and copy_to {es-pull}61309[#61309] (issue: {es-issue}61033[#61033])
* Apply boost only once for distance_feature query {es-pull}63767[#63767]
* Fixed NullPointerException in `significant_text` aggregation when field does not exist {es-pull}64144[#64144] (issue: {es-issue}64045[#64045])
* Fix async search to retry updates on version conflict {es-pull}63652[#63652] (issue: {es-issue}63213[#63213])
* Fix sorted query when date_nanos is used as the numeric_type {es-pull}64183[#64183] (issue: {es-issue}63719[#63719])

Snapshot/Restore::
* Avoid listener call under SparseFileTracker#mutex {es-pull}61626[#61626] (issue: {es-issue}61520[#61520])
* Ensure repo not in use for wildcard repo deletes {es-pull}60947[#60947]
* Fix Test Failure in testCorrectCountsForDoneShards {es-pull}60254[#60254] (issue: {es-issue}60247[#60247])
* Minimize cache file locking during prewarming {es-pull}61837[#61837] (issue: {es-issue}58658[#58658])
* Prevent snapshots to be mounted as system indices {es-pull}61517[#61517] (issue: {es-issue}60522[#60522])
* Make Searchable Snapshot's CacheFile Lock less {es-pull}63911[#63911] (issue: {es-issue}63586[#63586])
* Don't Generate an Index Setting History UUID unless it's supported {es-pull}64213[#64213] (issue: {es-issue}64152[#64152])

SQL::
* Allow unescaped wildcard (*) in LIKE pattern {es-pull}63428[#63428] (issue: {es-issue}55108[#55108])
* Validate integer paramete in string functions {es-pull}63728[#63728] (issue: {es-issue}58923[#58923])
* Remove filter from field_caps requests {es-pull}63840[#63840] (issue: {es-issue}63832[#63832])



[[upgrade-7.10.0]]
[discrete]
=== Upgrades

Infra/Packaging::
* Upgrade bundled JDK to 15.0.1 and switch to AdoptOpenJDK {es-pull}64253[#64253]

Store::
* Upgrade to Lucene-8.7.0 {es-pull}64532[#64532]
