closes bpo-33376: Update to Unicode 12.0.0. (GH-12256)

diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index c9fbfd0..66915a7 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -351,7 +351,7 @@
    The numeric literals accepted include the digits ``0`` to ``9`` or any
    Unicode equivalent (code points with the ``Nd`` property).
 
-   See http://www.unicode.org/Public/10.0.0/ucd/extracted/DerivedNumericType.txt
+   See http://www.unicode.org/Public/12.0.0/ucd/extracted/DerivedNumericType.txt
    for a complete list of code points with the ``Nd`` property.
 
 
diff --git a/Doc/library/unicodedata.rst b/Doc/library/unicodedata.rst
index 17e848b..b019fa5 100644
--- a/Doc/library/unicodedata.rst
+++ b/Doc/library/unicodedata.rst
@@ -17,8 +17,8 @@
 
 This module provides access to the Unicode Character Database (UCD) which
 defines character properties for all Unicode characters. The data contained in
-this database is compiled from the `UCD version 11.0.0
-<http://www.unicode.org/Public/11.0.0/ucd>`_.
+this database is compiled from the `UCD version 12.0.0
+<http://www.unicode.org/Public/12.0.0/ucd>`_.
 
 The module uses the same names and symbols as defined by Unicode
 Standard Annex #44, `"Unicode Character Database"
@@ -175,6 +175,6 @@
 
 .. rubric:: Footnotes
 
-.. [#] http://www.unicode.org/Public/11.0.0/ucd/NameAliases.txt
+.. [#] http://www.unicode.org/Public/12.0.0/ucd/NameAliases.txt
 
-.. [#] http://www.unicode.org/Public/11.0.0/ucd/NamedSequences.txt
+.. [#] http://www.unicode.org/Public/12.0.0/ucd/NamedSequences.txt