diff --git a/CHANGES.rst b/CHANGES.rst
index d142ead5c..3fe9bb0e2 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,11 @@
+**2016-06-28**
+
+*Released 4.3*
+
+- Use ``urllib3.PoolManager`` for connection re-use
+- Rewrite ``run_async`` decorator to re-use threads
+- New requirements: ``urllib3`` and ``certifi``
+
 **2016-06-10**
 
 *Released 4.2.1*
diff --git a/telegram/__init__.py b/telegram/__init__.py
index 1bf9dd131..00d4f828a 100644
--- a/telegram/__init__.py
+++ b/telegram/__init__.py
@@ -82,7 +82,7 @@ from .update import Update
 from .bot import Bot
 
 __author__ = 'devs@python-telegram-bot.org'
-__version__ = '4.2.1'
+__version__ = '4.3'
 __all__ = ['Audio', 'Bot', 'Chat', 'ChatMember', 'ChatAction', 'ChosenInlineResult',
            'CallbackQuery', 'Contact', 'Document', 'Emoji', 'File', 'ForceReply',
            'InlineKeyboardButton', 'InlineKeyboardMarkup', 'InlineQuery', 'InlineQueryResult',