Bump to v12.8

CHANGES.rst

@@ -2,6 +2,41 @@
 Changelog
 =========
 
+Version 12.8
+============
+*Released 2020-06-22*
+
+**Major Changes:**
+
+- Remove Python 2 support (`#1715`_)
+- Bot API 4.9 support (`#1980`_)
+- IDs/Usernames of ``Filters.user`` and ``Filters.chat`` can now be updated (`#1757`_)
+
+**Minor changes, CI improvements, doc fixes or bug fixes:**
+
+- Update contribution guide and stale bot (`#1937`_)
+- Remove ``NullHandlers`` (`#1913`_)
+- Improve and expand examples (`#1943`_, `#1995`_, `#1983`_, `#1997`_)
+- Doc fixes (`#1940`_, `#1962`_)
+- Add ``User.send_poll()`` shortcut (`#1968`_)
+- Ignore private attributes en ``TelegramObject.to_dict()`` (`#1989`_)
+- Stabilize CI (`#2000`_)
+
+.. _`#1937`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1937
+.. _`#1913`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1913
+.. _`#1943`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1943
+.. _`#1757`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1757
+.. _`#1940`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1940
+.. _`#1962`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1962
+.. _`#1968`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1968
+.. _`#1989`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1989
+.. _`#1995`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1995
+.. _`#1983`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1983
+.. _`#1715`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1715
+.. _`#2000`: https://github.com/python-telegram-bot/python-telegram-bot/pull/2000
+.. _`#1997`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1997
+.. _`#1980`: https://github.com/python-telegram-bot/python-telegram-bot/pull/1980
+
 Version 12.7
 ============
 *Released 2020-05-02*

docs/source/conf.py

@@ -58,9 +58,9 @@ author = u'Leandro Toledo'
 # built documents.
 #
 # The short X.Y version.
-version = '12.7'  # telegram.__version__[:3]
+version = '12.8'  # telegram.__version__[:3]
 # The full version, including alpha/beta/rc tags.
-release = '12.7'  # telegram.__version__
+release = '12.8'  # telegram.__version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

telegram/version.py

@@ -17,4 +17,4 @@
 # You should have received a copy of the GNU Lesser Public License
 # along with this program.  If not, see [http://www.gnu.org/licenses/].
 
-__version__ = '12.7'
+__version__ = '12.8'