[9.1] [DOCS] Kibana release notes for 9.1.8 (#244273)

docs/release-notes/index.md

@@ -21,6 +21,53 @@ To check for security updates, go to [Security announcements for the Elastic sta
 % ### Fixes [kibana-X.X.X-fixes]
 % *
 
+## 9.1.8 [kibana-9.1.8-release-notes]
+
+% ::::{NOTE}
+% ::::
+
+
+### Features and enhancements [kibana-9.1.8-features-enhancements]
+
+**Elastic Observability solution**:
+For the Elastic Observability 9.1.8 release information, refer to [Elastic Observability Solution Release Notes](docs-content://release-notes/elastic-observability/index.md).
+
+**Elastic Security solution**:
+For the Elastic Security 9.1.8 release information, refer to [Elastic Security Solution Release Notes](docs-content://release-notes/elastic-security/index.md).
+
+
+### Fixes [kibana-9.1.8-fixes]
+
+**Alerting and cases**:
+* Captures connector errors without interrupting the case creation flow. Issues with connectors can be resolved on the case details page  [#244188]({{kib-pull}}244188).
+* Fixes pagination for the **Alerts** table, which was getting stuck on rule details pages [#242275]({{kib-pull}}242275).
+* Fetches tracked alerts without depending on the task state [#235253]({{kib-pull}}235253).
+
+**Dashboards and Visualizations**:
+* Fixes error that occurs when you deselect the **(blank)** option from the filter controls menu [#242036]({{kib-pull}}242036).
+
+**Data ingestion and Fleet**:
+* Uses long expiration for upgrading agents [#243443]({{kib-pull}}243443).
+* Fixes retrying agents stuck in auto-upgrade logic [#243326]({{kib-pull}}243326).
+* Adds retry behavior for `/api/fleet/agents` when transient issues with {{es}} are encountered [#243105]({{kib-pull}}243105).
+* Fixes Docker image in the **Add agent** Kubernetes manifest [#242691]({{kib-pull}}242691).
+* Fixes {{fleet}} policy name uniqueness not being consistently enforced across spaces when name or space changes occur [#239631]({{kib-pull}}239631).
+* Fixes `ignore_above` mapping for `flattened` fields [#238890]({{kib-pull}}238890).
+
+**Elastic Observability solution**:
+For the Elastic Observability 9.1.8 release information, refer to [Elastic Observability Solution Release Notes](docs-content://release-notes/elastic-observability/index.md).
+
+**Elastic Security solution**:
+For the Elastic Security 9.1.8 release information, refer to [Elastic Security Solution Release Notes](docs-content://release-notes/elastic-security/index.md).
+
+**Kibana platform**:
+* Fixes the production build favicon's CSS specificity [#243351]({{kib-pull}}243351).
+* Fixes an issue on the **Index management** page where screen reader text was different from visible text [#243802]({{kib-pull}}243802).
+* Fixes an issue with keyboard focus getting trapped on pages using document preview [#243791]({{kib-pull}}243791).
+
+**Machine Learning**:
+* Ensures deleted text in AI connector or Inference endpoint forms is not sent as empty strings [#244059]({{kib-pull}}244059).
+* Fixes import and improves validation for Anomaly Detection and Data Frame Analytics jobs [#242263]({{kib-pull}}242263).
 
 ## 9.1.7 [kibana-9.1.7-release-notes]