diff --git a/source/_docs/z-wave/controllers.markdown b/source/_docs/z-wave/controllers.markdown
index 7557429ce4f..32081190916 100644
--- a/source/_docs/z-wave/controllers.markdown
+++ b/source/_docs/z-wave/controllers.markdown
@@ -7,6 +7,18 @@ description: "Extended instructions how to setup Z-Wave."
 
 You need to have a compatible Z-Wave stick or module installed. The following devices have been confirmed to work with Z-Wave JS:
 
+<div class='note warning'>
+
+Until recently, 700 series Z-Wave Controllers had a bug that could cause the mesh to be flooded on some networks and the controller to become unresponsive. At present, all 700 series controllers share the same firmware and are subject to this bug. It appears that this bug is largely, if not completely, resolved as of firmware version 7.17.2.
+
+Users should upgrade the firmware on all 700 series controllers to version 7.17.2 or greater. Firmware can be upgraded using the below directions:
+
+- [Upgrade instructions using Linux](https://github.com/kpine/zwave-js-server-docker/wiki/700-series-Controller-Firmware-Updates-(Linux))
+- [Upgrade instructions using Windows (Aeotec)](https://help.aeotec.com/support/solutions/articles/6000252296-update-z-stick-7-with-windows)
+- [Upgrade instructions using Windows (Zooz)](https://www.support.getzooz.com/kb/article/931-how-to-perform-an-ota-firmware-update-on-your-zst10-700-z-wave-stick/)
+
+</div>
+
 - 700 series controllers
   - Aeotec Z-Stick 7 USB stick (ZWA010)
   - Aeotec Z-Pi 7 Raspberry Pi HAT/Shield (ZWA025)
@@ -29,10 +41,6 @@ You need to have a compatible Z-Wave stick or module installed. The following de
 
 If you are just starting out, we recommend that you purchase a 500 series controller. At the very least, you should purchase a [Z-Wave Plus](https://z-wavealliance.org/z-wave_plus_certification/) controller.
 
-<div class='note'>
-  Not all of the above devices are supported by the deprecated Z-Wave integration.
-</div>
-
 <div class='note'>
   If you're using Home Assistant OS, Supervised, or Container, it's recommended to use a USB stick, not a module. Passing a module through Docker is more complicated than passing a USB stick through.
 </div>