diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5a3df7ba59b48..edc83e287a173 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,21 +4,6 @@
 breaking changes in the upcoming 3.x release. This release is scheduled for
 2024-12 or 2025-01.
 
-<details>
-<summary>2024-12-31: retiring legacy Pubsub admin APIs</summary>
-<br>
-
-* On 2024-12-31 (or shortly after) we are planning to remove the hand-written
-  versions of the Pubsub topic admin APIs. These have been superseded by versions
-  generated automatically from the service definitions. The new APIs can be
-  found in the [`google/cloud/pubsub/admin`](https://github.com/googleapis/google-cloud-cpp/tree/main/google/cloud/pubsub/admin)
-  tree and within the `google::cloud::pubsub_admin` namespace. Starting with
-  the v2.22.0 release, and depending on your compiler settings, using these
-  classes/functions may elicit a deprecation warning. See
-  [#7356](https://github.com/googleapis/google-cloud-cpp/issues/7356) for more
-  details.
-</details>
-
 ## v2.23.0 - TBD
 
 ## v2.22.0 - 2024-03
diff --git a/doc/deprecated.md b/doc/deprecated.md
index 5e28126a17627..04fafb3bd229f 100644
--- a/doc/deprecated.md
+++ b/doc/deprecated.md
@@ -50,6 +50,21 @@ namespace. For status on this see [#8234].
 
 </details>
 
+<details>
+<summary>Pubsub: remove legacy admin APIs</summary>
+<br>
+
+We will remove the hand-written versions of the Pub/Sub admin APIs. These have
+been superseded by versions generated automatically from the service
+definitions. The new APIs can be found in the
+[`google/cloud/pubsub/admin`](https://github.com/googleapis/google-cloud-cpp/tree/main/google/cloud/pubsub/admin)
+tree and within the `google::cloud::pubsub_admin` namespace. Starting with the
+v2.23.0 release, and depending on your compiler settings, using the old
+classes/functions may elicit a deprecation warning. See [#12987] for more
+details.
+
+</details>
+
 <details>
 <summary>Spanner: remove legacy admin APIs</summary>
 <br>
@@ -109,6 +124,7 @@ info, see [#7463] and [#5976].
 
 </details>
 
+[#12987]: https://github.com/googleapis/google-cloud-cpp/issues/12987
 [#5976]: https://github.com/googleapis/google-cloud-cpp/issues/5976
 [#7356]: https://github.com/googleapis/google-cloud-cpp/issues/7356
 [#7463]: https://github.com/googleapis/google-cloud-cpp/issues/7463