diff --git a/docs/release_notes.rst b/docs/release_notes.rst
index 42d4c539b..6d000cfd2 100644
--- a/docs/release_notes.rst
+++ b/docs/release_notes.rst
@@ -11,6 +11,13 @@ Incoming release
 
 - TBA
 
+Mitsuba 2.2.1
+-------------
+
+*July 27, 2020*
+
+- Fix warnings, build and tests on Windows (MSVC)
+
 Mitsuba 2.2.0
 -------------
 
diff --git a/include/mitsuba/mitsuba.h b/include/mitsuba/mitsuba.h
index 86835da39..812e174fb 100644
--- a/include/mitsuba/mitsuba.h
+++ b/include/mitsuba/mitsuba.h
@@ -10,7 +10,7 @@
 
 #define MTS_VERSION_MAJOR 2
 #define MTS_VERSION_MINOR 2
-#define MTS_VERSION_PATCH 0
+#define MTS_VERSION_PATCH 1
 
 #define MTS_STRINGIFY(x) #x
 #define MTS_TOSTRING(x)  MTS_STRINGIFY(x)