Fix 404ing Release Notes

release-notes/elastic-cloud-serverless/toc.yml

@@ -1,4 +1,4 @@
 toc:
-  - file: changelog.md
+  - file: index.md
   - file: known-issues.md
   - file: deprecations.md

release-notes/elastic-observability/toc.yml

@@ -1,5 +1,5 @@
 toc:
-  - file: release-notes.md
+  - file: index.md
   - file: known-issues.md
   - file: breaking-changes.md
   - file: deprecations.md

release-notes/elastic-security/toc.yml

@@ -1,5 +1,5 @@
 toc:
-  - file: release-notes.md
+  - file: index.md
   - file: known-issues.md
   - file: breaking-changes.md
   - file: deprecations.md

release-notes/fleet-elastic-agent/toc.yml

@@ -1,5 +1,5 @@
 toc:
-  - file: release-notes.md
+  - file: index.md
   - file: known-issues.md
   - file: breaking-changes.md
   - file: deprecations.md

solutions/observability/apps/switch-self-installation-to-apm-integration.md

@@ -20,7 +20,7 @@ mapped_pages:
 
 The {{stack}} ({{es}} and {{kib}}) must be upgraded to version 7.14 or higher. See the [{{stack}} Installation and Upgrade Guide](../../../deploy-manage/upgrade/deployment-or-cluster.md) for guidance.
 
-Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/release-notes.md) for important changes between your current APM version and this one.
+Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/index.md) for important changes between your current APM version and this one.
 
 
 ## Add a {{fleet}} Server [apm-integration-upgrade-2]

solutions/observability/apps/upgrade-elastic-cloud-apm-server-standalone-to-8.md

@@ -16,7 +16,7 @@ This upgrade guide is for the standalone method of running APM Server. Only use
 
 Follow these steps to upgrade:
 
-1. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/release-notes.md).
+1. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/index.md).
 2. Upgrade {{ecloud}} to 9.0.0-beta1, See [Upgrade versions](../../../deploy-manage/upgrade/deployment-or-cluster.md) for instructions.
 3. (Optional) Upgrade to the APM integration. Got time for one more upgrade? See [Switch to the Elastic APM integration](switch-to-elastic-apm-integration.md).
 

solutions/observability/apps/upgrade-elastic-cloud-with-apm-integration-to-80.md

@@ -16,7 +16,7 @@ This upgrade guide is for the Elastic APM integration. Only use this guide if bo
 
 Follow these steps to upgrade:
 
-1. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/release-notes.md).
+1. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/index.md).
 2. Upgrade your {{ecloud}} instance to 9.0.0-beta1. See [Upgrade versions](../../../deploy-manage/upgrade/deployment-or-cluster.md) for details. The APM integration will automatically be upgraded to version 9.0.0-beta1 as a part of this process.
 
 ::::{note}

solutions/observability/apps/upgrade-self-installation-of-apm-integration-to-8x.md

@@ -18,7 +18,7 @@ This upgrade guide is for the Elastic APM integration. Only use this guide if bo
 ## Prerequisites [_prerequisites_9]
 
 1. Prior to upgrading to version 9.0.0-beta1, {{es}}, and {{kib}} must be upgraded to version 7.17. To upgrade {{es}} and {{kib}}, see the [{{stack}} Installation and Upgrade Guide](https://www.elastic.co/guide/en/elastic-stack/7.17/upgrading-elastic-stack.html)
-2. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/release-notes.md).
+2. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/index.md).
 
 
 ## Upgrade steps [_upgrade_steps_2]

solutions/observability/apps/upgrade-self-installation-of-apm-server-standalone-to-8x.md

@@ -22,7 +22,7 @@ This upgrade guide is for the standalone method of running APM Server. Only use
     * To upgrade {{es}} and {{kib}}, see the [{{stack}} Installation and Upgrade Guide](https://www.elastic.co/guide/en/elastic-stack/7.17/upgrading-elastic-stack.html)
     * To upgrade APM Server to version 7.17, see [upgrade to version 7.17](https://www.elastic.co/guide/en/apm/guide/7.17/upgrading-to-717.html).
 
-2. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/release-notes.md).
+2. Review the [Elastic APM release notes](apm-server://release-notes/index.md) and [Elastic {{observability}} release notes](/release-notes/elastic-observability/index.md).
 
 
 ## Upgrade steps [_upgrade_steps]