diff --git a/README.rst b/README.rst
index 504b0ce..8aa11c3 100644
--- a/README.rst
+++ b/README.rst
@@ -42,14 +42,13 @@ Then install all the packages using poetry install:
 
     poetry install
 
-To install this as a command available from the system build the package then
-install it with pip:
+To install this package locally build it then install with pip:
 
 
 .. code-block:: bash
 
     poetry build
-    python3.8 -m pip install dist/idasen-0.2.0-py3-none-any.whl
+    python3.8 -m pip install dist/idasen-0.4.0-py3-none-any.whl
 
 Configuration
 *************
@@ -62,15 +61,24 @@ You can use this command to initialize a new configuartion file:
 
     idasen init
 
+.. code-block:: yaml
+
+    mac_address: AA:AA:AA:AA:AA:AA
+    positions:
+        sit: 0.75
+        stand: 1.1
+
 Configuartion options:
 
 * ``mac_address`` - The MAC address of the desk. This is required.
-* ``stand_height`` - The standing height from the floor of the desk in meters.
-* ``sit_height`` - The standing height from the floor of the desk in meters.
+* ``positions`` - A dictionary of positions with values of desk height from the
+  floor in meters, ``sit`` and ``stand`` are provided as examples.
 
-The program will try to find the device address, but if it fails, it has to be done manually.
-Device MAC addresses can be found using ``blueoothctl`` and bluetooth adapter
-names can be found with ``hcitool dev`` on linux.
+The program will try to find the device address,
+but if it fails, it has to be done manually.
+
+The device MAC addresses can be found using ``blueoothctl`` and bluetooth
+adapter names can be found with ``hcitool dev`` on linux.
 
 Usage
 *****
@@ -84,17 +92,23 @@ To print the current desk height:
 
     idasen height
 
-To monitor for changes to height :
+To monitor for changes to height:
 
 .. code-block:: bash
 
     idasen monitor
 
-Assuming the config file is populated to move the desk to standing position:
+To save the current height as the sitting position:
+
+.. code-block:: bash
+
+    idasen save sit
+
+To delete the saved sitting position:
 
 .. code-block:: bash
 
-    idasen stand
+    idasen delete sit
 
 Assuming the config file is populated to move the desk to sitting position:
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 4ccf544..ef01a62 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,8 +1,21 @@
 Change Log
 ##########
 
-Unreleased
-**********
+`0.4.0`_ 2020-10-20
+*******************
+
+Added
+=====
+- Added ``save`` and ``delete`` sub-commands to the CLI to save and delete
+  desk positions.
+
+Changed
+=======
+- Changed the configuration file format, see the README for details.
+
+Fixed
+=====
+- Fixed a bug with the ``init`` sub-command raising an exception.
 
 `0.3.0`_ 2020-10-10
 *******************
@@ -34,6 +47,7 @@ Changed
 *******************
 - Initial release
 
+.. _0.4.0: https://github.com/newAM/idasen/releases/tag/v0.4.0
 .. _0.3.0: https://github.com/newAM/idasen/releases/tag/v0.3.0
 .. _0.2.1: https://github.com/newAM/idasen/releases/tag/v0.2.1
 .. _0.2.0: https://github.com/newAM/idasen/releases/tag/v0.2.0
diff --git a/pyproject.toml b/pyproject.toml
index 9cff24e..db95fed 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ target-version = ["py38"]
 name = "idasen"
 description = "ikea IDÅSEN desk API and CLI."
 authors = ["Alex M. <alexmgit@protonmail.com>"]
-version = "0.3.0"
+version = "0.4.0"
 license = "MIT"
 readme = "README.rst"
 repository = "https://github.com/newAM/idasen"