diff --git a/README.md b/README.md
index bd9419cc..2c48eaaa 100644
--- a/README.md
+++ b/README.md
@@ -308,6 +308,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **06.09.23:** - Add deprecation warning as per [https://info.linuxserver.io/issues/2023-09-06-unifi-controller](https://info.linuxserver.io/issues/2023-09-06-unifi-controller).
 * **04.09.23:** - Bump JRE to 17 to support v7.5.
 * **04.05.23:** - Cleanup `apt-get install` during build to reduce image size.
 * **18.03.23:** - Add mongoless branch.
diff --git a/readme-vars.yml b/readme-vars.yml
index ce069880..01614a83 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -89,6 +89,7 @@ app_setup_block: |
 
 # changelog
 changelogs:
+  - { date: "06.09.23:", desc: "Add deprecation warning as per [https://info.linuxserver.io/issues/2023-09-06-unifi-controller](https://info.linuxserver.io/issues/2023-09-06-unifi-controller)."}
   - { date: "04.09.23:", desc: "Bump JRE to 17 to support v7.5."}
   - { date: "04.05.23:", desc: "Cleanup `apt-get install` during build to reduce image size."}
   - { date: "18.03.23:", desc: "Add mongoless branch."}
diff --git a/root/etc/s6-overlay/s6-rc.d/init-config-end/dependencies.d/init-unifi-controller-config b/root/etc/s6-overlay/s6-rc.d/init-config-end/dependencies.d/init-deprecation-config
similarity index 100%
rename from root/etc/s6-overlay/s6-rc.d/init-config-end/dependencies.d/init-unifi-controller-config
rename to root/etc/s6-overlay/s6-rc.d/init-config-end/dependencies.d/init-deprecation-config
diff --git a/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/dependencies.d/init-unifi-controller-config b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/dependencies.d/init-unifi-controller-config
new file mode 100644
index 00000000..e69de29b
diff --git a/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/run b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/run
new file mode 100755
index 00000000..bdf70d8a
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/run
@@ -0,0 +1,17 @@
+#!/usr/bin/with-contenv bash
+# shellcheck shell=bash
+
+echo "┌─────────────────────────────────────────────────────────────────────────────┐"
+echo "│                                                                             │"
+echo "|                From 2024-01-01 this image will be deprecated                │"
+echo "|                      and it will no longer be updated.                      │"
+echo "│                                                                             │"
+echo "│     See: https://info.linuxserver.io/issues/2023-09-06-unifi-controller     |"
+echo "|                              for more details.                              │"
+echo "│                                                                             │"
+echo "├─────────────────────────────────────────────────────────────────────────────┤"
+echo "│                                                                             │"
+echo "│        Please migrate to our Unifi Network Application image instead:       │"
+echo "│       https://github.com/linuxserver/docker-unifi-network-application       │"
+echo "│                                                                             │"
+echo "└─────────────────────────────────────────────────────────────────────────────┘"
diff --git a/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/type b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/type
new file mode 100644
index 00000000..bdd22a18
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/type
@@ -0,0 +1 @@
+oneshot
diff --git a/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/up b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/up
new file mode 100644
index 00000000..1d01d5e5
--- /dev/null
+++ b/root/etc/s6-overlay/s6-rc.d/init-deprecation-config/up
@@ -0,0 +1 @@
+/etc/s6-overlay/s6-rc.d/init-deprecation-config/run
diff --git a/root/etc/s6-overlay/s6-rc.d/user/contents.d/init-deprecation-config b/root/etc/s6-overlay/s6-rc.d/user/contents.d/init-deprecation-config
new file mode 100644
index 00000000..e69de29b