Python 3.10.0a0 (GH-20198)

diff --git a/Doc/tutorial/interpreter.rst b/Doc/tutorial/interpreter.rst
index b78d296..d2733a9 100644
--- a/Doc/tutorial/interpreter.rst
+++ b/Doc/tutorial/interpreter.rst
@@ -10,13 +10,13 @@
 Invoking the Interpreter
 ========================
 
-The Python interpreter is usually installed as :file:`/usr/local/bin/python3.9`
+The Python interpreter is usually installed as :file:`/usr/local/bin/python3.10`
 on those machines where it is available; putting :file:`/usr/local/bin` in your
 Unix shell's search path makes it possible to start it by typing the command:
 
 .. code-block:: text
 
-   python3.9
+   python3.10
 
 to the shell. [#]_ Since the choice of the directory where the interpreter lives
 is an installation option, other places are possible; check with your local
@@ -24,7 +24,7 @@
 popular alternative location.)
 
 On Windows machines where you have installed Python from the :ref:`Microsoft Store
-<windows-store>`, the :file:`python3.9` command will be available. If you have
+<windows-store>`, the :file:`python3.10` command will be available. If you have
 the :ref:`py.exe launcher <launcher>` installed, you can use the :file:`py`
 command. See :ref:`setting-envvars` for other ways to launch Python.
 
@@ -97,8 +97,8 @@
 
 .. code-block:: shell-session
 
-   $ python3.9
-   Python 3.9 (default, June 4 2019, 09:25:04)
+   $ python3.10
+   Python 3.10 (default, June 4 2019, 09:25:04)
    [GCC 4.8.2] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>>
diff --git a/Doc/tutorial/stdlib.rst b/Doc/tutorial/stdlib.rst
index a52653b..f33265c 100644
--- a/Doc/tutorial/stdlib.rst
+++ b/Doc/tutorial/stdlib.rst
@@ -15,7 +15,7 @@
 
    >>> import os
    >>> os.getcwd()      # Return the current working directory
-   'C:\\Python39'
+   'C:\\Python310'
    >>> os.chdir('/server/accesslogs')   # Change current working directory
    >>> os.system('mkdir today')   # Run the command mkdir in the system shell
    0
diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst
index 2994828..298034d 100644
--- a/Doc/tutorial/stdlib2.rst
+++ b/Doc/tutorial/stdlib2.rst
@@ -278,7 +278,7 @@
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
        d['primary']                # entry was automatically removed
-     File "C:/python39/lib/weakref.py", line 46, in __getitem__
+     File "C:/python310/lib/weakref.py", line 46, in __getitem__
        o = self.data[key]()
    KeyError: 'primary'
 
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
new file mode 100644
index 0000000..96cb132
--- /dev/null
+++ b/Doc/whatsnew/3.10.rst
@@ -0,0 +1,115 @@
+****************************
+  What's New In Python 3.10
+****************************
+
+:Release: |release|
+:Date: |today|
+
+.. Rules for maintenance:
+
+   * Anyone can add text to this document.  Do not spend very much time
+   on the wording of your changes, because your text will probably
+   get rewritten to some degree.
+
+   * The maintainer will go through Misc/NEWS periodically and add
+   changes; it's therefore more important to add your changes to
+   Misc/NEWS than to this file.
+
+   * This is not a complete list of every single change; completeness
+   is the purpose of Misc/NEWS.  Some changes I consider too small
+   or esoteric to include.  If such a change is added to the text,
+   I'll just remove it.  (This is another reason you shouldn't spend
+   too much time on writing your addition.)
+
+   * If you want to draw your new text to the attention of the
+   maintainer, add 'XXX' to the beginning of the paragraph or
+   section.
+
+   * It's OK to just add a fragmentary note about a change.  For
+   example: "XXX Describe the transmogrify() function added to the
+   socket module."  The maintainer will research the change and
+   write the necessary text.
+
+   * You can comment out your additions if you like, but it's not
+   necessary (especially when a final release is some months away).
+
+   * Credit the author of a patch or bugfix.   Just the name is
+   sufficient; the e-mail address isn't necessary.
+
+   * It's helpful to add the bug/patch number as a comment:
+
+   XXX Describe the transmogrify() function added to the socket
+   module.
+   (Contributed by P.Y. Developer in :issue:`12345`.)
+
+   This saves the maintainer the effort of going through the Mercurial log
+   when researching a change.
+
+This article explains the new features in Python 3.10, compared to 3.9.
+
+For full details, see the :source:`Misc/NEWS` file.
+
+.. note::
+
+   Prerelease users should be aware that this document is currently in draft
+   form. It will be updated substantially as Python 3.10 moves towards release,
+   so it's worth checking back even after reading earlier versions.
+
+
+Summary -- Release highlights
+=============================
+
+.. This section singles out the most important changes in Python 3.10.
+   Brevity is key.
+
+
+.. PEP-sized items next.
+
+
+
+New Features
+============
+
+
+
+Other Language Changes
+======================
+
+
+
+New Modules
+===========
+
+* None yet.
+
+
+Improved Modules
+================
+
+
+Optimizations
+=============
+
+
+Build and C API Changes
+=======================
+
+
+
+Deprecated
+==========
+
+
+
+Removed
+=======
+
+
+
+Porting to Python 3.10
+======================
+
+This section lists previously described changes and other bugfixes
+that may require changes to your code.
+
+
diff --git a/Doc/whatsnew/index.rst b/Doc/whatsnew/index.rst
index 954e38b..a1ff8ec 100644
--- a/Doc/whatsnew/index.rst
+++ b/Doc/whatsnew/index.rst
@@ -11,6 +11,7 @@
 .. toctree::
    :maxdepth: 2
 
+   3.10.rst
    3.9.rst
    3.8.rst
    3.7.rst