diff --git a/CHANGELOG b/CHANGELOG
index 6212ca5..eb6eb7a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+v0.7 (unreleased):
+
+- ...
+
 v0.6.6 (released January 4, 2024):
 
 - Dropped support for end-of-life Python 3.7.
diff --git a/appveyor.yml b/appveyor.yml
index 738c5d5..22348e0 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: 0.6.6-b{build}
+version: 0.7.dev0-b{build}
 
 branches:
   only:
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 0a6cdcb..00cb625 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,6 +1,14 @@
 Changelog
 =========
 
+v0.7
+----
+
+Unreleased
+(`changes <https://github.com/earwig/mwparserfromhell/compare/v0.6.6...main>`__):
+
+- ...
+
 v0.6.6
 ------
 
diff --git a/src/mwparserfromhell/__init__.py b/src/mwparserfromhell/__init__.py
index ff5b2a5..32f9500 100644
--- a/src/mwparserfromhell/__init__.py
+++ b/src/mwparserfromhell/__init__.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2023 Ben Kurtovic <ben.kurtovic@gmail.com>
+# Copyright (C) 2012-2024 Ben Kurtovic <ben.kurtovic@gmail.com>
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
@@ -25,9 +25,9 @@ outrageously powerful parser for `MediaWiki <https://www.mediawiki.org>`_ wikico
 """
 
 __author__ = "Ben Kurtovic"
-__copyright__ = "Copyright (C) 2012-2023 Ben Kurtovic"
+__copyright__ = "Copyright (C) 2012-2024 Ben Kurtovic"
 __license__ = "MIT License"
-__version__ = "0.6.6"
+__version__ = "0.7.dev0"
 __email__ = "ben.kurtovic@gmail.com"
 
 from . import definitions, nodes, parser, smart_list, string_mixin, utils, wikicode