diff --git a/DEPLOYMENT-NOTES.rst b/DEPLOYMENT-NOTES.rst
index 9603da2e899d63161486313a7acce7dd05f9b14a..79a98dc5676e397287909470382eb5722ee647de 100644
--- a/DEPLOYMENT-NOTES.rst
+++ b/DEPLOYMENT-NOTES.rst
@@ -1,6 +1,14 @@
 Deployment notes
 ================
 
+- 2023-06-19
+
+  ZKAPAuthorizer's Tahoe-LAFS plugin name changed from "privatestorageio-zkapauthz-v1" to "privatestorageio-zkapauthz-v2".
+  This causes Tahoe-LAFS to use a different filename to persist the plugin's Foolscap fURL.
+  To preserve the original fURL value (required) each storage node needs this command run before the deployment::
+
+    cp /var/db/tahoe-lafs/storage/private/storage-plugin.privatestorageio-zkapauthz-v{1,2}.furl
+
 - 2023-04-19
 
   The team switched from Slack to Zulip.