diff --git a/docs/changelog/index.rst b/docs/changelog/index.rst
index ae67d7c..2b73c75 100644
--- a/docs/changelog/index.rst
+++ b/docs/changelog/index.rst
@@ -1,6 +1,13 @@
 Changelog
 =========
 
+0.3.3 (dev)
+~~~~~~~~~~~
+
+  - Added ``http2_connection_window_size`` and ``http2_stream_window_size``
+    config values, using 4 MiB as a default for both values instead of 64 KiB
+    (HTTP/2 default)
+
 0.3.2
 ~~~~~
 
diff --git a/grpclib/__init__.py b/grpclib/__init__.py
index 3ffbb03..dde4f26 100644
--- a/grpclib/__init__.py
+++ b/grpclib/__init__.py
@@ -1,7 +1,7 @@
 from .const import Status
 from .exceptions import GRPCError
 
-__version__ = '0.3.2'
+__version__ = '0.3.3rc1'
 
 __all__ = (
     'Status',