diff --git a/HISTORY.rst b/HISTORY.rst
index 4119a1e..dcff694 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -3,6 +3,12 @@
 History
 -------
 
+3.10 (2024-09-15)
++++++++++++++++++
+
+- Reverted to Unicode 15.1.0 data. Unicode 16 has some significant changes
+  to UTS46 processing that will require more work to properly implement.
+
 3.9 (2024-09-13)
 ++++++++++++++++
 
diff --git a/idna/package_data.py b/idna/package_data.py
index ddd1e69..514ff7e 100644
--- a/idna/package_data.py
+++ b/idna/package_data.py
@@ -1 +1 @@
-__version__ = "3.9"
+__version__ = "3.10"