New syntax features:
+* A ``global`` or ``nonlocal`` statement must now textually appear
+ before the first use of the affected name in the same scope.
+ Previously this was a SyntaxWarning.
+
* PEP 498: :ref:`Formatted string literals <whatsnew-fstrings>`
+* PEP 515: Underscores in Numeric Literals
+
+* PEP 526: Syntax for Variable Annotations
+
+* PEP 525: Asynchronous Generators
+
+* PEP 530: Asynchronous Comprehensions
+
Standard library improvements:
Security improvements: