diff --git a/src/opnsense/firmware-message.in b/src/opnsense/firmware-message.in
new file mode 100644
index 000000000..10fbaf9c5
--- /dev/null
+++ b/src/opnsense/firmware-message.in
@@ -0,0 +1,14 @@
+<p>OPNsense %%CORE_SERIES%% "<em>%%CORE_NICKNAME%%</em>" has reached its end of life. As such
+it will not receive any more updates, but the upgrade to the new %%CORE_NEXT%% series is
+seamless and can be performed right here from the GUI by unlocking it below.</p>
+<p> Another method is to import and reinstall using a new installation image,
+which will retain your settings (selecting "Import Configuration"), then
+reformat the disk and apply a clean system (selecting "Guided Installation").</p>
+<p>You can also upgrade via console / SSH by using option 12 from the menu by
+typing "%%CORE_NEXT%%" when prompted.</p>
+<p>Make sure to read the migration notes and adjust for possible minor breaking
+changes.</p>
+<p>Please backup your configuration, preview the new version via live image or
+in a virtual machine. Create snapshots. If all else fails, report back
+<a href="https://forum.opnsense.org/" target="_blank">in the forums</a> for
+assistance.</p>
diff --git a/src/opnsense/firmware-upgrade b/src/opnsense/firmware-upgrade
new file mode 100644
index 000000000..39548ab63
--- /dev/null
+++ b/src/opnsense/firmware-upgrade
@@ -0,0 +1 @@
+21.7.r1