diff --git a/data/deprecations/16-9-deprecate-v1-license-metadata-format.yml b/data/deprecations/16-9-deprecate-v1-license-metadata-format.yml
new file mode 100644
index 0000000000000000000000000000000000000000..774bde9d645c0c7e380d24bc51192a76330ca88d
--- /dev/null
+++ b/data/deprecations/16-9-deprecate-v1-license-metadata-format.yml
@@ -0,0 +1,13 @@
+- title: "Deprecate license metadata format V1"
+  removal_milestone: "17.0"
+  announcement_milestone: "16.9"
+  breaking_change: true
+  reporter: thiagocsf
+  stage: Secure
+  issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/438477
+  body: |  # (required) Don't change this line.
+    The license metadata format V1 dataset has been deprecated and will be removed
+    in GitLab 17.0.
+
+    Users who have the `package_metadata_synchronization` feature flag enabled are advised to
+    upgrade to GitLab 16.3 or above, and remove the feature flag configuration.
diff --git a/doc/update/deprecations.md b/doc/update/deprecations.md
index 74c40b3f66f48bbd0e6439261dd31577e21b15db..b57f0b121b47f2d26223e1946a2a8720ecd86e94 100644
--- a/doc/update/deprecations.md
+++ b/doc/update/deprecations.md
@@ -498,6 +498,24 @@ The runner's legacy escape sequence mechanism to handle variable expansion imple
 
 <div class="deprecation breaking-change" data-milestone="17.0">
 
+### Deprecate license metadata format V1
+
+<div class="deprecation-notes">
+- Announced in GitLab <span class="milestone">16.9</span>
+- Removal in GitLab <span class="milestone">17.0</span> ([breaking change](https://docs.gitlab.com/ee/update/terminology.html#breaking-change))
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-org/gitlab/-/issues/438477).
+</div>
+
+The license metadata format V1 dataset has been deprecated and will be removed
+in GitLab 17.0.
+
+Users who have the `package_metadata_synchronization` feature flag enabled are advised to
+upgrade to GitLab 16.3 or above, and remove the feature flag configuration.
+
+</div>
+
+<div class="deprecation breaking-change" data-milestone="17.0">
+
 ### Deprecated parameters related to custom text in the sign-in page
 
 <div class="deprecation-notes">