Merge branch 'main' of https://github.com/elastic/elasticsearch into esql-kql-function

Author: afoucret

build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/test/rest/compat/compat/RestCompatTestTransformTask.java

@@ -137,7 +137,7 @@ public void skipTest(String fullTestName, String reason) {
         // However, the folder can be arbitrarily nest so, a == a1/a2/a3, and the test name can include forward slashes, so c == c1/c2/c3
         // So we also need to support a1/a2/a3/b/c1/c2/c3
 
-        String[] testParts = fullTestName.split("/");
+        String[] testParts = fullTestName.split("/", 3);
         if (testParts.length < 3) {
             throw new IllegalArgumentException(
                 "To skip tests, all 3 parts [folder/file/test name] must be defined. found [" + fullTestName + "]"

docs/changelog/116689.yaml

@@ -0,0 +1,10 @@
+pr: 116689
+summary: Deprecate `_source.mode` in mappings
+area: Mapping
+type: deprecation
+issues: []
+deprecation:
+  title: Deprecate `_source.mode` in mappings
+  area: Mapping
+  details: Configuring `_source.mode` in mappings is deprecated and will be removed in future versions. Use `index.mapping.source.mode` index setting instead.
+  impact: Use `index.mapping.source.mode` index setting instead

docs/changelog/116957.yaml

@@ -0,0 +1,5 @@
+pr: 116957
+summary: Propagate scoring function through random sampler
+area: Machine Learning
+type: bug
+issues: [ 110134 ]

docs/changelog/117080.yaml

@@ -0,0 +1,5 @@
+pr: 117080
+summary: Esql Enable Date Nanos (tech preview)
+area: ES|QL
+type: enhancement
+issues: []

docs/changelog/117105.yaml

@@ -0,0 +1,6 @@
+pr: 117105
+summary: Fix long metric deserialize & add - auto-resize needs to be set manually
+area: CCS
+type: bug
+issues:
+ - 116914

docs/reference/esql/esql-limitations.asciidoc

@@ -25,6 +25,9 @@ include::processing-commands/limit.asciidoc[tag=limitation]
 * `alias`
 * `boolean`
 * `date`
+* `date_nanos` (Tech Preview)
+** The following functions don't yet support date nanos: `bucket`, `date_format`, `date_parse`, `date_diff`, `date_extract`
+** You can use `to_datetime` to cast to millisecond dates to use unsupported functions
 * `double` (`float`, `half_float`, `scaled_float` are represented as `double`)
 * `ip`
 * `keyword` family including `keyword`, `constant_keyword`, and `wildcard`
@@ -50,7 +53,6 @@ include::processing-commands/limit.asciidoc[tag=limitation]
 ** `position`
 ** `aggregate_metric_double`
 * Date/time
-** `date_nanos`
 ** `date_range`
 * Other types
 ** `binary`