diff --git a/release-notes/elastic-observability/breaking-changes.md b/release-notes/elastic-observability/breaking-changes.md
index 376387ee2e..fde6141e45 100644
--- a/release-notes/elastic-observability/breaking-changes.md
+++ b/release-notes/elastic-observability/breaking-changes.md
@@ -18,7 +18,6 @@ Breaking changes can impact your Elastic applications, potentially disrupting no
% ::::
## 9.0.0 [elastic-observability-900-breaking-changes]
-**Release date:** April 2, 2025
::::{dropdown} Profiling now defaults to 19Hz sampling frequency
For more information, check [#202278]({{kib-pull}}202278).
@@ -37,15 +36,5 @@ To explore your logs, use the contextual experience in Discover.
To view log streams, use Discover sessions.
-
::::
-::::{dropdown} Removed Logs Explorer
-Logs Explorer has been removed.
-
-
-For more information, check [#203685]({{kib-pull}}203685).
-
-**Action**
-Use the improved logs exploration experience in Discover.
-::::
\ No newline at end of file
diff --git a/release-notes/elastic-observability/deprecations.md b/release-notes/elastic-observability/deprecations.md
index 82d084349c..81df29d365 100644
--- a/release-notes/elastic-observability/deprecations.md
+++ b/release-notes/elastic-observability/deprecations.md
@@ -25,4 +25,20 @@ Review the deprecated functionality for Elastic {{observability}}. While depreca
% For more information, check [PR #](PR link).
% **Impact**
Impact of deprecation.
% **Action**
Steps for mitigating deprecation impact.
-% ::::
\ No newline at end of file
+% ::::
+
+::::{dropdown} Removed Logs Explorer
+Logs Explorer has been removed.
+
+For more information, check [#203685]({{kib-pull}}203685).
+
+**Action**
+Use the improved logs exploration experience in Discover.
+::::
+
+::::{dropdown} Removed GA feature flags for host and container views
+The `observability:enableInfrastructureHostsView` and `enableInfrastructureContainerAssetView` feature flags have been removed for host and container views.
+
+For more information, check [#197684]({{kib-pull}}197684).
+
+::::
\ No newline at end of file
diff --git a/release-notes/elastic-observability/index.md b/release-notes/elastic-observability/index.md
index c4a7ac5684..69f3488ee0 100644
--- a/release-notes/elastic-observability/index.md
+++ b/release-notes/elastic-observability/index.md
@@ -12,7 +12,6 @@ To check for security updates, go to [Security announcements for the Elastic sta
% Release notes include only features, enhancements, and fixes. Add breaking changes, deprecations, and known issues to the applicable release notes sections.
% ## version.next [elastic-observability-next-release-notes]
-% **Release date:** Month day, year
% ### Features and enhancements [elastic-observability-next-features-enhancements]
% *
@@ -21,8 +20,21 @@ To check for security updates, go to [Security announcements for the Elastic sta
% *
## 9.0.0 [elastic-observability-900-release-notes]
-**Release date:** April 2, 2025
+
+### Features and enhancements [elastic-observability-next-features-enhancements]
+* Improves SLO navigation by separating details from the overview panel [#212826]({{kib-pull}}212826)
+* Enables the new Borealis theme [#210468]({{kib-pull}}210468)
+* Returns a 404 response only when the `screenshot_ref` is truly missing [#215241]({{kib-pull}}215241)
+* Includes the `spaceId` field in Service Level Indicator (SLI) documents [#214278]({{kib-pull}}214278)
+* Includes the recovery reason message in the rule context [#211411]({{kib-pull}}211411)
+* Enhances Synthetic SLOs by adding location context and correcting badge link behavior [#210695]({{kib-pull}}210695)
+* Updates the default sampling frequency to 19Hz [#202278]({{kib-pull}}202278)
### Fixes [elastic-observability-900-fixes]
-* Fixes chat on the Alerts page [#197126]({{kib-pull}}197126)
-* Fixes an error that could prevent the Observability Infrastructure Inventory view from loading after an upgrade due to missing versioning on inventory_view_saved_object [#207007]({{kib-pull}}207007)
\ No newline at end of file
+* Resolves an issue that prevented the chat feature from functioning correctly on the Alerts page [#197126]({{kib-pull}}197126)
+* Addresses a missing versioning issue in `inventory_view_saved_object` that could prevent the Observability Infrastructure Inventory view from loading post-upgrade [#207007]({{kib-pull}}207007)
+* Enables the use of wildcard filters in SLO queries [#213119]({{kib-pull}}213119)
+* Updates the `Close project` navigation label to `Log out` to better reflect the intended action for users in serverless environments [#211463]({{kib-pull}}211463)
+* Fixes an issue where clicking a name badge for a synthetics monitor led to a page that failed to load monitor details [#210695]({{kib-pull}}210695)
+* Fixes code scanning alert no. 456: Incomplete string escaping or encoding [#193909]({{kib-pull}}193909)
+* Fixes code scanning alert: Incomplete string escaping or encoding [#193365]({{kib-pull}}193365)
\ No newline at end of file
diff --git a/release-notes/elastic-observability/known-issues.md b/release-notes/elastic-observability/known-issues.md
deleted file mode 100644
index 0e0b7e9aaf..0000000000
--- a/release-notes/elastic-observability/known-issues.md
+++ /dev/null
@@ -1,19 +0,0 @@
----
-navigation_title: "Known issues"
----
-
-# Elastic {{observability}} known issues [elastic-observability-known-issues]
-Known issues are significant defects or limitations that may impact your implementation. These issues are actively being worked on and will be addressed in a future release. Review the Elastic {{observability}} known issues to help you make informed decisions, such as upgrading to a new version.
-
-% Use the following template to add entries to this page.
-
-% :::{dropdown} Title of known issue
-% **Applicable versions for the known issue and the version for when the known issue was fixed**
-% On [Month Day, Year], a known issue was discovered that [description of known issue].
-% For more information, check [Issue #](Issue link).
-
-% **Workaround**
-% Workaround description.
-
-:::
-
diff --git a/release-notes/elastic-observability/toc.yml b/release-notes/elastic-observability/toc.yml
index a410067947..c5ed862b4f 100644
--- a/release-notes/elastic-observability/toc.yml
+++ b/release-notes/elastic-observability/toc.yml
@@ -1,5 +1,4 @@
toc:
- file: index.md
- - file: known-issues.md
- file: breaking-changes.md
- file: deprecations.md
\ No newline at end of file