Prepare 16.1.0 release.

Author: HexDecimal

CHANGELOG.md

@@ -4,6 +4,8 @@ Changes relevant to the users of python-tcod are documented here.
 This project adheres to [Semantic Versioning](https://semver.org/) since version `2.0.0`.
 
 ## [Unreleased]
+
+## [16.1.0] - 2023-06-23
 ### Added
 - Added the enums `tcod.event.MouseButton` and `tcod.event.MouseButtonMask`.
 

tcod/event.py

@@ -243,7 +243,7 @@ class Modifier(enum.IntFlag):
 class MouseButton(enum.IntEnum):
     """An enum for mouse buttons.
 
-    .. versionadded:: Unreleased
+    .. versionadded:: 16.1
     """
 
     LEFT = 1
@@ -264,7 +264,7 @@ def __repr__(self) -> str:
 class MouseButtonMask(enum.IntFlag):
     """A mask enum for held mouse buttons.
 
-    .. versionadded:: Unreleased
+    .. versionadded:: 16.1
     """
 
     LEFT = 0x1