diff --git a/docs/available_parameters.rst b/docs/available_parameters.rst
index 9e34df0..f63a648 100644
--- a/docs/available_parameters.rst
+++ b/docs/available_parameters.rst
@@ -299,7 +299,7 @@ Models are evaluated along the satellite track at the positions of the time seri
   ``models=["'CHAOS-full' = 'CHAOS-Core' + 'CHAOS-Static' + 'CHAOS-MMA-Primary' + 'CHAOS-MMA-Secondary'"]``
   `(click for more info) <https://github.com/klaundal/notebooks/blob/master/get_external_field.ipynb>`_
 
-  This composed model can also be accessed by an alias: ``models=["CHAOS"]`` which represents the full CHAOS model
+  This composed model (core + crust + magnetosphere) can also be accessed by an alias: ``models=["CHAOS"]``. Note that this does not include the ionospheric part (``"CHAOS-MIO"``) which was added to the CHAOS series in `CHAOS-8 <http://www.spacecenter.dk/files/magnetic-models/CHAOS-8/>`_.
 
   See `Magnetic Earth <https://magneticearth.org/pages/models.html>`_ for an introduction to geomagnetic models.
 
@@ -326,6 +326,7 @@ Models are evaluated along the satellite track at the positions of the time seri
   CHAOS-Core,                                # Core
   CHAOS-Static,                              # Lithosphere
   CHAOS-MMA-Primary, CHAOS-MMA-Secondary     # Magnetosphere
+  CHAOS-MIO                                  # Polar ionosphere
 
   # Other lithospheric models:
   MF7, LCS-1
diff --git a/docs/release_notes.rst b/docs/release_notes.rst
index 4d1942a..cbaf89c 100644
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -4,6 +4,11 @@ Release notes
 Change log
 ----------
 
+Changes from 0.13.0 to 0.14.0
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- Added ``"CHAOS-MIO"`` magnetic model - the new ionospheric part of CHAOS. Note that the alias ``"CHAOS"`` does not include this ``"CHAOS-MIO"``
+
 Changes from 0.12.3 to 0.13.0
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/src/viresclient/__init__.py b/src/viresclient/__init__.py
index 280b0c1..05f9662 100644
--- a/src/viresclient/__init__.py
+++ b/src/viresclient/__init__.py
@@ -35,4 +35,4 @@
 from ._config import ClientConfig, set_token
 from ._data_handling import ReturnedData, ReturnedDataFile
 
-__version__ = "0.13.0"
+__version__ = "0.14.0"
diff --git a/src/viresclient/_client_swarm.py b/src/viresclient/_client_swarm.py
index dd082ad..62f2a05 100644
--- a/src/viresclient/_client_swarm.py
+++ b/src/viresclient/_client_swarm.py
@@ -60,6 +60,10 @@
         "CHAOS-8 Secondary (internal) magnetospheric field",
         " http://www.spacecenter.dk/files/magnetic-models/CHAOS-8/ ",
     ),
+    "CHAOS-MIO": (
+        "CHAOS-8 Ionospheric field",
+        " http://www.spacecenter.dk/files/magnetic-models/CHAOS-8/ ",
+    ),
     "MF7": (
         "MF7 crustal field model, derived from CHAMP satellite observations",
         " http://geomag.org/models/MF7.html",
@@ -1549,6 +1553,7 @@ class SwarmRequest(ClientRequest):
         "CHAOS-Static",
         "CHAOS-MMA-Primary",
         "CHAOS-MMA-Secondary",
+        "CHAOS-MIO",
         "MCO_SHA_2C",
         "MCO_SHA_2D",
         "MLI_SHA_2C",