diff --git a/nixos/doc/manual/release-notes/rl-2009.xml b/nixos/doc/manual/release-notes/rl-2009.xml
index 83bc2f82bbfc..b958aab07c56 100644
--- a/nixos/doc/manual/release-notes/rl-2009.xml
+++ b/nixos/doc/manual/release-notes/rl-2009.xml
@@ -128,7 +128,7 @@ GRANT ALL PRIVILEGES ON *.* TO 'mysql'@'localhost' WITH GRANT OPTION;
- Two new option documentation.man.generateCaches
+ The new option documentation.man.generateCaches
has been added to automatically generate the man-db caches, which are needed by utilities
like whatis and apropos. The caches are generated during the build of
the NixOS configuration: since this can be expensive when a large number of packages are installed, the
@@ -195,6 +195,15 @@ GRANT ALL PRIVILEGES ON *.* TO 'mysql'@'localhost' WITH GRANT OPTION;
The NixOS module system now supports freeform modules as a mix between types.attrsOf and types.submodule. These allow you to explicitly declare a subset of options while still permitting definitions without an associated option. See for how to use them.
+
+
+ The GRUB module gained support for basic password protection, which
+ allows to restrict non-default entries in the boot menu to one or more
+ users. The users and passwords are defined via the option
+ .
+ Note: Password support is only avaiable in GRUB version 2.
+
+