diff --git a/CHANGELOG b/CHANGELOG
index 012fe42..7be3a3d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+v0.7 (unreleased):
+
+- ...
+
 v0.6.3 (released September 2, 2021):
 
 - Added Linux AArch64 wheels. (#276)
diff --git a/appveyor.yml b/appveyor.yml
index 4dd77e4..5f89a41 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 # This config file is used by appveyor.com to build Windows release binaries
 
-version: 0.6.3-b{build}
+version: 0.7.dev0-b{build}
 
 branches:
   only:
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 5585f39..61a9dbd 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,14 @@
 Changelog
 =========
 
+v0.7
+----
+
+Unreleased
+(`changes <https://github.com/earwig/mwparserfromhell/compare/v0.6.3...develop>`__):
+
+- ...
+
 v0.6.3
 ------
 
diff --git a/src/mwparserfromhell/__init__.py b/src/mwparserfromhell/__init__.py
index 7c19a21..6e65a7e 100644
--- a/src/mwparserfromhell/__init__.py
+++ b/src/mwparserfromhell/__init__.py
@@ -27,7 +27,7 @@ outrageously powerful parser for `MediaWiki <https://www.mediawiki.org>`_ wikico
 __author__ = "Ben Kurtovic"
 __copyright__ = "Copyright (C) 2012-2021 Ben Kurtovic"
 __license__ = "MIT License"
-__version__ = "0.6.3"
+__version__ = "0.7.dev0"
 __email__ = "ben.kurtovic@gmail.com"
 
 from . import definitions, nodes, parser, smart_list, string_mixin, utils, wikicode