diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae2de38..7991421 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- Version numbers must be synchronized in CHANGELOG.md, -->
 <!-- src/gdata.h, and docs/source/conf.py-->
-## [Unreleased] - TBD
+## [3.1.0] - 2023-12-20
 ### Added
 - `#AUTOREDUCE` has been added to the list of KPP commands in the ReadTheDocs documentaton
 - Added `examples/mcm` folder with minimal example for the Master Chemical Mechanism
diff --git a/docs/source/conf.py b/docs/source/conf.py
index f75da91..6ea04cf 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -25,7 +25,7 @@
 # The full version, including alpha/beta/rc tags
 # (version numbers must be synchronized in CHANGELOG.md, src/gdata.h,
 # and docs/source/conf.py)
-release = "3.0.2"
+release = "3.1.0"
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/src/gdata.h b/src/gdata.h
index 3a30433..1826a2d 100644
--- a/src/gdata.h
+++ b/src/gdata.h
@@ -31,7 +31,7 @@
 
 // Version numbers must be synchronized in CHANGELOG.md, src/gdata.h,
 // and docs/source/conf.py
-#define KPP_VERSION "3.0.2"
+#define KPP_VERSION "3.1.0"
 
 #ifndef _GDATA_H_
 #define _GDATA_H_