Merge remote-tracking branch 'origin/main' into ES-9777_support_batch_deletions_in_azure

Author: nicktindall

docs/changelog/113237.yaml

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+pr: 113237
+summary: Retry throttled snapshot deletions
+area: Snapshot/Restore
+type: bug
+issues: []

docs/changelog/113735.yaml

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+pr: 113735
+summary: "ESQL: Introduce per agg filter"
+area: ES|QL
+type: feature
+issues: []
+highlight:
+  title: "ESQL: Introduce per agg filter"
+  body: |-
+    Add support for aggregation scoped filters that work dynamically on the
+    data in each group.
+    
+    [source,esql]
+    ----
+    | STATS success = COUNT(*) WHERE 200 <= code AND code < 300,
+            redirect = COUNT(*) WHERE 300 <= code AND code < 400,
+            client_err = COUNT(*) WHERE 400 <= code AND code < 500,
+            server_err = COUNT(*) WHERE 500 <= code AND code < 600,
+            total_count = COUNT(*)
+    ----
+    
+    Implementation wise, the base AggregateFunction has been extended to 
+    allow a filter to be passed on. This is required to incorporate the
+    filter as part of the aggregate equality/identity which would fail with 
+    the filter as an external component.
+    As part of the process, the serialization for the existing aggregations
+    had to be fixed so AggregateFunction implementations so that it
+    delegates to their parent first.
+  notable: true

docs/changelog/114439.yaml

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+pr: 114439
+summary: Adding new bbq index types behind a feature flag
+area: Vector Search
+type: feature
+issues: []

docs/changelog/114482.yaml

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+pr: 114482
+summary: Remove snapshot build restriction for match and qstr functions
+area: ES|QL
+type: feature
+issues: []

docs/changelog/114636.yaml

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+pr: 114683
+summary: Default inference endpoint for the multilingual-e5-small model
+area: Machine Learning
+type: enhancement
+issues: []

docs/changelog/114683.yaml

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+pr: 114719
+summary: Wait for allocation on scale up
+area: Machine Learning
+type: enhancement
+issues: []

docs/changelog/114719.yaml

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+pr: 114732
+summary: Stream Bedrock Completion
+area: Machine Learning
+type: enhancement
+issues: []

docs/changelog/114732.yaml

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+pr: 114750
+summary: Create an ml node inference endpoint referencing an existing model
+area: Machine Learning
+type: enhancement
+issues: []

docs/changelog/114750.yaml

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+pr: 114836
+summary: Support multi-valued fields in compute engine for ST_DISTANCE
+area: ES|QL
+type: enhancement
+issues:
+ - 112910