diff --git a/TODO b/TODO
index 1069896cb4..fbe299c931 100644
--- a/TODO
+++ b/TODO
@@ -75,6 +75,8 @@ Fedora:
* chkconfig → systemd enable/daemon-reload glue
+* /var/lock, /var/run → what happens if rpm stuff is no %ghosted?
+
External:
* make cryptsetup lower --iter-time
diff --git a/man/os-release.xml b/man/os-release.xml
index c6eb28f395..b5f42b2eec 100644
--- a/man/os-release.xml
+++ b/man/os-release.xml
@@ -167,9 +167,15 @@
If you interpreting this file from code or a
shell script, use the ID and VERSION_ID fields. When
- looking for an OS indetification string for
+ looking for an OS identification string for
presentation to the user use the PRETTY_STRING
field.
+
+ Note that operating system vendors may choose
+ not to provide version information, for example to
+ accomodate for rolling releases. In this case VERSION
+ and VERSION_ID may be unset. Applications should not
+ rely on these fields to be set.