diff --git a/docs/conf.py b/docs/conf.py
index 57010c2af1..16c5b25082 100755
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -74,7 +74,7 @@
 #
 # We don't follow "The short X.Y version" vs "The full version, including alpha/beta/rc tags"
 # breakdown, so use the same version identifier for both to avoid confusion.
-version = release = '3.4.3'
+version = release = '3.5.0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 7386c2a2e8..2f1fde9f10 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -29,8 +29,8 @@
 
 // Current version of Pycopy
 #define MICROPY_VERSION_MAJOR 3
-#define MICROPY_VERSION_MINOR 4
-#define MICROPY_VERSION_MICRO 3
+#define MICROPY_VERSION_MINOR 5
+#define MICROPY_VERSION_MICRO 0
 
 // Combined version as a 32-bit number for convenience
 #define MICROPY_VERSION ( \