diff --git a/pages/01.home/maintenance-log/default.md b/pages/01.home/maintenance-log/default.md
index 9c363ff..b4716b0 100755
--- a/pages/01.home/maintenance-log/default.md
+++ b/pages/01.home/maintenance-log/default.md
@@ -10,6 +10,25 @@ A log of changes to the burble.dn42 network.
 
 ## burble.dn42 Maintenance Log
 
+#### 9th September 2020
+
+uk-lon1 will be upgraded this weekend (12/13th
+September), but unfortunately this does mean that the IP address for the
+server is going to change.
+
+The hostname will be changed to match the new address, but if you use the
+IP address in your configuration (e.g. for firewall rules), you will need
+to update them, as detailed below.
+
+*dn42-uk-lon1.burble.com*
+- IPv4: 185.42.222.153
+- IPv6: 2a04:92c5:2::42
+
+All other peering details, such as encryption keys and tunnel IP addresses
+will remain the same, and the new server is in the same datacentre so there
+should be no changes to connectivity or latency.
+
+
 #### 28th August 2020
 
 **Changes to the burble.dn42 network**