add note about security + fixes

Author: sarahs

data/ui.yml

@@ -18,9 +18,10 @@ header:
       please visit our
       <a id="to-english-doc" href="/en">English documentation</a>.
     early_access: 📣 Please <b>do not share</b> this URL publicly. This page contains content about an early access feature.
-    ghes_release_notes_upgrade_patch_only: 📣 This is not the <a href="#{{ latestPatch }}">latest patch release</a> of Enterprise Server.
-    ghes_release_notes_upgrade_release_only: 📣 This is not the <a href="/enterprise-server@{{ latestRelease }}/admin/release-notes">latest release</a> of Enterprise Server.
-    ghes_release_notes_upgrade_patch_and_release: 📣 This is not the <a href="#{{ latestPatch }}">latest patch release</a> of this release series, and this is not the <a href="/enterprise-server@{{ latestRelease }}/admin/release-notes">latest release</a> of Enterprise Server.
+    ghes_release_notes_use_latest: Please use the latest release for the latest security, performance, and bug fixes.
+    ghes_release_notes_upgrade_patch_only: 📣 This is not the <a href="#{{ latestPatch }}">latest patch release</a> of Enterprise Server. {% data ui.header.notices.ghes_release_notes_use_latest %}
+    ghes_release_notes_upgrade_release_only: 📣 This is not the <a href="/enterprise-server@{{ latestRelease }}/admin/release-notes">latest release</a> of Enterprise Server. {% data ui.header.notices.ghes_release_notes_use_latest %}
+    ghes_release_notes_upgrade_patch_and_release: 📣 This is not the <a href="#{{ latestPatch }}">latest patch release</a> of this release series, and this is not the <a href="/enterprise-server@{{ latestRelease }}/admin/release-notes">latest release</a> of Enterprise Server. {% data ui.header.notices.ghes_release_notes_use_latest %}
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