[DOCS] Kibana 8.15.1 release notes (elastic#191871)

docs/CHANGELOG.asciidoc

@@ -10,6 +10,7 @@
 
 Review important information about the {kib} 8.x releases.
 
+* <<release-notes-8.15.1>>
 * <<release-notes-8.15.0>>
 * <<release-notes-8.14.3>>
 * <<release-notes-8.14.2>>
@@ -71,6 +72,50 @@ Review important information about the {kib} 8.x releases.
 
 --
 
+[[release-notes-8.15.1]]
+== {kib} 8.15.1
+
+The 8.15.1 release includes the following bug fixes.
+
+// [float]
+// [[enhancement-v8.15.1]]
+// === Enhancements
+// Other::
+// * Automatic Import now supports the 'multiline newline-delimited JSON' log sample format for the Filestream input ({kibana-pull}190588[#190588]).
+
+[float]
+[[fixes-v8.15.1]]
+=== Bug fixes
+Data Discovery::
+* Fixes time range filter ({kibana-pull}187010[#187010]).
+Elastic Security::
+For the Elastic Security 8.15.1 release information, refer to {security-guide}/release-notes.html[_Elastic Security Solution Release Notes_].
+Fleet::
+* Remove duplicative retries from client-side requests to APIs that depend on EPR ({kibana-pull}190722[#190722]).
+Lens & Visualizations::
+* Visualization blows up when invalid color is passed in *TSVB* ({kibana-pull}190658[#190658]).
+Observability::
+* Enables wildcard search for the Synthetics waterfall chart ({kibana-pull}191132[#191132]).
+* Fixes accordion disclosure keyboard focus border ({kibana-pull}190436[#190436]).
+* Always pass allowLeadingWildcards as true to the KQL validation in the custom threshold rule API param validation ({kibana-pull}190031[#190031]).
+* Prevent excess calls to get agent namespace ({kibana-pull}189995[#189995]).
+* Fixes blank storage explorer summary when filter string is active ({kibana-pull}189760[#189760]).
+* Observability AI Assistant: Use internal user when fetching connectors ({kibana-pull}190462[#190462]).
+* Observability AI Assistant: Fixes bug “Cannot set initialMessages if initialConversationId is set" ({kibana-pull}189885[#189885]).
+Platform::
+* Fixes handling of splittable subkeys when processing values ({kibana-pull}190590[#190590]). Fixes a bug when processing YAML configuration keys that contain dotted notation in objects in arrays. This can manifest as a validation error causing Kibana to not start.
+Presentation::
+* Fixes by-value map embeddables have broken layers ({kibana-pull}190996[#190996]).
+* Fixes text readability on map scale, attribution, and coordinate controls ({kibana-pull}189639[#189639]).
+Search::
+* Fixes index error incorrectly showing up ({kibana-pull}189283[#189283]). Fixes a bug where an index error about the `semantic_text` field would be incorrectly displayed when the inference endpoint was configured and available.
+Uptime::
+* Fixes broken pagination in Uptime when a filter is applied ({kibana-pull}189831[#189831]).
+// Security::
+// * Resolve a bug in ECS missing fields detection ({kibana-pull}191502[#191502]).
+// * Improve sample merge functionality ({kibana-pull}190656[#190656]).
+// * Try parsing samples as both NDJSON and JSON ({kibana-pull}190046[#190046]).
+
 [[release-notes-8.15.0]]
 == {kib} 8.15.0