diff --git a/nixos/doc/manual/release-notes/rl-2103.xml b/nixos/doc/manual/release-notes/rl-2103.xml
index 55c1229a164..5bdc44365ed 100644
--- a/nixos/doc/manual/release-notes/rl-2103.xml
+++ b/nixos/doc/manual/release-notes/rl-2103.xml
@@ -211,6 +211,22 @@
and slaptest is buggy with schemas directly in the config file.
+
+
+ Amazon EC2 and OpenStack Compute (nova) images now re-fetch instance meta data and user data from the instance
+ metadata service (IMDS) on each boot. For example: stopping an EC2 instance, changing its user data, and
+ restarting the instance will now cause it to fetch and apply the new user data.
+
+
+
+ Specifically, /etc/ec2-metadata is re-populated on each boot. Some NixOS scripts that read
+ from this directory are guarded to only run if the files they want to manipulate do not already exist, and so
+ will not re-apply their changes if the IMDS response changes. Examples: root's SSH key is
+ only added if /root/.ssh/authorized_keys does not exist, and SSH host keys are only set from
+ user data if they do not exist in /etc/ssh.
+
+
+