diff --git a/Doc/library/enum.rst b/Doc/library/enum.rst
index b5f9c2f08b1873..1bd70791ef605e 100644
--- a/Doc/library/enum.rst
+++ b/Doc/library/enum.rst
@@ -575,6 +575,8 @@ Data Types
          >>> KeepFlag(2**2 + 2**4)
          KeepFlag.BLUE|0x10
 
+.. versionadded:: 3.10  ``FlagBoundary``
+
 
 Utilites and Decorators
 -----------------------
@@ -598,6 +600,7 @@ Utilites and Decorators
    also injects the members, and their aliases, into the the global namespace
    they were defined in.
 
+.. versionadded:: 3.10
 
 .. decorator:: property
 
@@ -610,6 +613,8 @@ Utilites and Decorators
              *Enum* class, and *Enum* subclasses can define members with the
              names ``value`` and ``name``.
 
+.. versionadded:: 3.10
+
 .. decorator:: unique
 
    A :keyword:`class` decorator specifically for enumerations.  It searches an