diff --git a/nixos/doc/manual/release-notes/rl-2411.section.md b/nixos/doc/manual/release-notes/rl-2411.section.md
index 54541c24ea09..877f3411c8d7 100644
--- a/nixos/doc/manual/release-notes/rl-2411.section.md
+++ b/nixos/doc/manual/release-notes/rl-2411.section.md
@@ -125,6 +125,8 @@
 
 - `grafana` has been updated to version 11.1. This version doesn't support setting `http_addr` to a hostname anymore, an IP address is expected.
 
+- `knot-dns` has been updated to version 3.4.x. Check the [migration guide](https://www.knot-dns.cz/docs/latest/html/migration.html#upgrade-3-3-x-to-3-4-x) for breaking changes.
+
 - `services.kubernetes.kubelet.clusterDns` now accepts a list of DNS resolvers rather than a single string, bringing the module more in line with the upstream Kubelet configuration schema.
 
 - `wstunnel` has had a major version upgrade that entailed rewriting the program in Rust.