diff --git a/config.default.yaml b/config.default.yaml
index d727d1178..7e0a90c69 100644
--- a/config.default.yaml
+++ b/config.default.yaml
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
-version: 0.2.0
+version: 0.2.1
 tutorial: false
 
 logging:
diff --git a/config.tutorial.yaml b/config.tutorial.yaml
index 1c1ab45af..eb9a9eb24 100644
--- a/config.tutorial.yaml
+++ b/config.tutorial.yaml
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
-version: 0.2.0
+version: 0.2.1
 tutorial: true
 
 logging:
diff --git a/doc/conf.py b/doc/conf.py
index 62687298a..05c7eab54 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -65,7 +65,7 @@
 copyright = f"{datetime.datetime.today().year}, {author}"
 
 # The full version, including alpha/beta/rc tags
-release = "0.2.0"
+release = "0.2.1"
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = "sphinx"
diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index 41738dd83..c26dd73cd 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -12,11 +12,18 @@ Upcoming release
 Please add descriptive release notes like in `PyPSA-Eur <https://github.com/PyPSA/pypsa-eur/blob/master/doc/release_notes.rst>`__.
 E.g. if a new rule becomes available describe how to use it `snakemake -j1 run_tests` and in one sentence what it does.
 
+PyPSA-Earth 0.2.1
+=================
+
 **New Features and major Changes**
 
-- Fix bug. Add graphviz to docs to compile workflows in the documentation and adapt release notes `PR #719 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/719>`__
+* Fix bug. Add graphviz to docs to compile workflows in the documentation and adapt release notes `PR #719 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/719>`__
+
+* License change from GPL to AGPL as voted `here <https://github.com/pypsa-meets-earth/pypsa-earth/issues/693>`__
+
+* Fix hard-coded simplification of lines to 380kV `PR #732 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/732>`__.
+  It is now possible to simplify the network to any other voltage level with config option `base_voltage`.
 
-- License change from GPL to AGPL as voted `here <https://github.com/pypsa-meets-earth/pypsa-earth/issues/693>`_
 
 PyPSA-Earth 0.2.0
 =================
@@ -111,8 +118,6 @@ PyPSA-Earth 0.2.0
 
 * Update instructions on how to write documentation. `PR #720 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/720>`__
 
-* Fix hard-coded simplification of lines to 380kV. `PR #732 <https://github.com/pypsa-meets-earth/pypsa-earth/pull/732>`__
-
 PyPSA-Earth 0.1.0
 =================