diff --git a/README.md b/README.md
index 901da8c9..ee412908 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ will write to your dconf store and cannot tell whether a configuration
 that it is about to be overwrite was from a previous Home Manager
 generation or from manual configuration.
 
-Home Manager targets [NixOS][] unstable and NixOS version 19.09 (the
+Home Manager targets [NixOS][] unstable and NixOS version 20.03 (the
 current stable version), it may or may not work on other Linux
 distributions and NixOS versions.
 
@@ -75,11 +75,11 @@ Currently the easiest way to install Home Manager is as follows:
     if you are following Nixpkgs master or an unstable channel and
 
     ```console
-    $ nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager
+    $ nix-channel --add https://github.com/rycee/home-manager/archive/release-20.03.tar.gz home-manager
     $ nix-channel --update
     ```
 
-    if you follow a Nixpkgs version 19.09 channel.
+    if you follow a Nixpkgs version 20.03 channel.
 
     On NixOS you may need to log out and back in for the channel to
     become available. On non-NixOS you may have to add
@@ -310,7 +310,7 @@ Home Manager is developed against `nixpkgs-unstable` branch, which
 often causes it to contain tweaks for changes/packages not yet
 released in stable NixOS. To avoid breaking users' configurations,
 Home Manager is released in branches corresponding to NixOS releases
-(e.g. `release-19.09`). These branches get fixes, but usually not new
+(e.g. `release-20.03`). These branches get fixes, but usually not new
 modules. If you need a module to be backported, then feel free to open
 an issue.
 
diff --git a/doc/installation.xml b/doc/installation.xml
index 9c5d24b3..c46c7cd5 100644
--- a/doc/installation.xml
+++ b/doc/installation.xml
@@ -79,11 +79,11 @@
      if you are following Nixpkgs master or an unstable channel and
     </para>
 <screen>
-<prompt>$</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager</userinput>
+<prompt>$</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-20.03.tar.gz home-manager</userinput>
 <prompt>$</prompt> <userinput>nix-channel --update</userinput>
 </screen>
     <para>
-     if you follow a Nixpkgs version 19.09 channel.
+     if you follow a Nixpkgs version 20.03 channel.
     </para>
     <para>
      On NixOS you may need to log out and back in for the channel to become
@@ -169,12 +169,12 @@ $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh
   </para>
 
 <screen>
-<prompt>#</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager</userinput>
+<prompt>#</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-20.03.tar.gz home-manager</userinput>
 <prompt>#</prompt> <userinput>nix-channel --update</userinput>
 </screen>
 
   <para>
-   if you follow a Nixpkgs version 19.09 channel.
+   if you follow a Nixpkgs version 20.03 channel.
   </para>
 
   <para>
@@ -268,12 +268,12 @@ home-manager.useGlobalPkgs = true;
   </para>
 
 <screen>
-<prompt>#</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-19.09.tar.gz home-manager</userinput>
+<prompt>#</prompt> <userinput>nix-channel --add https://github.com/rycee/home-manager/archive/release-20.03.tar.gz home-manager</userinput>
 <prompt>#</prompt> <userinput>nix-channel --update</userinput>
 </screen>
 
   <para>
-   if you follow a Nixpkgs version 19.09 channel.
+   if you follow a Nixpkgs version 20.03 channel.
   </para>
 
   <para>
diff --git a/doc/release-notes/rl-2003.adoc b/doc/release-notes/rl-2003.adoc
index 02014bc2..5832e2e5 100644
--- a/doc/release-notes/rl-2003.adoc
+++ b/doc/release-notes/rl-2003.adoc
@@ -1,8 +1,7 @@
 [[sec-release-20.03]]
-== Release 20.03 (unreleased)
+== Release 20.03
 
-This is the current unstable branch and the information in this
-section is therefore not final.
+The 20.03 release branch became the stable branch in April, 2020.
 
 [[sec-release-20.03-highlights]]
 === Highlights
diff --git a/home-manager/install.nix b/home-manager/install.nix
index 87aae504..92de17bd 100644
--- a/home-manager/install.nix
+++ b/home-manager/install.nix
@@ -28,7 +28,7 @@ runCommand "home-manager-install" {
       # You can update Home Manager without changing this value. See
       # the Home Manager release notes for a list of state version
       # changes in each release.
-      home.stateVersion = "19.09";
+      home.stateVersion = "20.03";
     }
     EOF
     fi
diff --git a/modules/misc/version.nix b/modules/misc/version.nix
index 1352aadc..fbeb3ec5 100644
--- a/modules/misc/version.nix
+++ b/modules/misc/version.nix
@@ -5,7 +5,7 @@ with lib;
 {
   options = {
     home.stateVersion = mkOption {
-      type = types.enum [ "18.09" "19.03" "19.09" "20.03" ];
+      type = types.enum [ "18.09" "19.03" "19.09" "20.03" "20.09" ];
       default = "18.09";
       description = ''
         It is occasionally necessary for Home Manager to change