Merge pull request ESQL-1369 from elastic/main

🤖 ESQL: Merge upstream

Author: elasticsearchmachine

build-tools-internal/src/main/resources/changelog-schema.json

@@ -263,6 +263,7 @@
     "compatibilityChangeArea": {
       "type": "string",
       "enum": [
+        "Authorization",
         "Cluster and node setting",
         "Command line tool",
         "CRUD",

docs/changelog/87674.yaml

@@ -0,0 +1,10 @@
+pr: 87674
+summary: Mark `apm_user` for removal in a future major release
+area: Authorization
+type: deprecation
+issues: []
+deprecation:
+  title: Mark `apm_user` for removal in a future major release
+  area: Authorization
+  details: The `apm_user` role has been deprecated and will be removed in a future major release. Users should migrate to `editor` and `viewer` roles
+  impact: Users will have to migrate to `editor` and `viewer` roles

docs/changelog/94954.yaml

@@ -1,5 +1,25 @@
 pr: 94954
-summary: Asset tracking - geo_line for TSDB
+summary: Asset tracking - geo_line in time-series aggregations
 area: Geo
 type: enhancement
-issues: []
+issues: [ ]
+highlight:
+  title: Asset tracking - geo_line in time-series aggregations
+  body: |-
+    The <<search-aggregations-metrics-geo-line,`geo_line` aggregation>> builds tracks from `geo_points`.
+    It has previously needed to use large arrays in memory for collecting points into multiple buckets
+    and sorting those buckets.
+
+    With the advances made in TSDB features and the `time_series` aggregation in particular,
+    it is now possible to rely on data aggregating in both TSID and timestamp order,
+    enabling the removal of all sorting, as well as the use of only a single bucket's
+    worth of memory, a dramatic improvement in memory footprint. In addition, we can use the streaming line
+    simplifier algorithm introduced in https://github.com/elastic/elasticsearch/pull/94859 to replace the previous
+    behaviour of truncating very large tracks with the far more preferable approach of simplifying those tracks.
+
+    [role="screenshot"]
+    image:images/spatial/kodiak_geo_line_simplified.png[North short of Kodiak Island simplified to 100 points]
+
+    In this diagram, the grey line is the original geometry, the blue line is the truncated geometry as would be
+    produced by the original `geo_line` aggregation, and the magenta line is the new simplified geometry.
+  notable: false

docs/changelog/95979.yaml

@@ -1,5 +1,5 @@
 pr: 95979
-summary: Allow for the data lifecycle and the retention to be explicitly nullified
+summary: Allow for the data stream lifecycle and the retention to be explicitly nullified
 area: DLM
 type: enhancement
 issues: []

docs/changelog/96772.yaml

@@ -0,0 +1,5 @@
+pr: 96772
+summary: Health API Periodic Logging
+area: Health
+type: enhancement
+issues: []

docs/changelog/97344.yaml

@@ -0,0 +1,5 @@
+pr: 97344
+summary: Change `MetricFieldProducer#metrics` field type from list to array
+area: Downsampling
+type: enhancement
+issues: []