diff --git a/releasenotes/notes/dns_domain-6f0e628aeb3c650c.yaml b/releasenotes/notes/dns_domain-6f0e628aeb3c650c.yaml
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+---
+fixes:
+  - |
+    Previously a network's ``dns_domain`` attribute was ignored by the DHCP
+    agent.  With this release, OpenStack deployments using Neutron's DHCP agent
+    will be able to specify a per network ``dns_domain`` and have instances
+    configure that domain in their dns resolver configuration files (Linux's
+    /etc/resolv.conf) to allow for local partial DNS lookups. The per-network
+    ``dns_domain`` value will override the DHCP agent's default ``dns_domain``
+    configuration value. Note that it's also possible to update a network's
+    ``dns_domain``, and that new value will be propogated to new instances
+    or when instances renew their DHCP lease. However, existing leases will
+    live on with the old ``dns_domain`` value.