diff --git a/ChangeLog.txt b/ChangeLog.txt
index b39425b..72eecde 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,5 +1,8 @@
 ChangeLog
 
+1.9.10.1
+	Fixed small memory leak caused by not releasing callback from GameEvents
+
 1.9.10
 	Thanks to github user @peterhaneve for this:
 		Optimize profile saving (reduce persistent file size), saves space and speeds up loading and saving
diff --git a/GameData/ScienceAlert/Plugins/ScienceAlert.pdb b/GameData/ScienceAlert/Plugins/ScienceAlert.pdb
index 04b7a6d..e8347e2 100644
Binary files a/GameData/ScienceAlert/Plugins/ScienceAlert.pdb and b/GameData/ScienceAlert/Plugins/ScienceAlert.pdb differ
diff --git a/GameData/ScienceAlert/ScienceAlert.version b/GameData/ScienceAlert/ScienceAlert.version
index 304a045..9a45381 100644
--- a/GameData/ScienceAlert/ScienceAlert.version
+++ b/GameData/ScienceAlert/ScienceAlert.version
@@ -9,12 +9,17 @@
   "VERSION": {
     "MAJOR": 1,
     "MINOR": 9,
-    "PATCH": 9,
-    "BUILD": 2
+    "PATCH": 10,
+    "BUILD": 1
+  },
+  "KSP_VERSION": {
+    "MAJOR": 1,
+    "MINOR": 12,
+    "PATCH": 3
   },
   "KSP_VERSION_MIN": {
     "MAJOR": 1,
-    "MINOR": 8,
+    "MINOR": 9,
     "PATCH": 0
   }
 }
diff --git a/ScienceAlert.version b/ScienceAlert.version
index d846c3b..9a45381 100644
--- a/ScienceAlert.version
+++ b/ScienceAlert.version
@@ -10,7 +10,7 @@
     "MAJOR": 1,
     "MINOR": 9,
     "PATCH": 10,
-    "BUILD": 0
+    "BUILD": 1
   },
   "KSP_VERSION": {
     "MAJOR": 1,
diff --git a/Source/AssemblyVersion.cs b/Source/AssemblyVersion.cs
index 7ce694e..9c10dbb 100644
--- a/Source/AssemblyVersion.cs
+++ b/Source/AssemblyVersion.cs
@@ -9,5 +9,5 @@
   
  using System.Reflection;
 
- [assembly: AssemblyVersion("1.9.9.2")]
- [assembly: AssemblyFileVersion("1.9.9.2")]
+ [assembly: AssemblyVersion("1.9.10.1")]
+ [assembly: AssemblyFileVersion("1.9.10.1")]
diff --git a/Source/ScienceAlert.Windows/DraggableOptionsWindow.cs b/Source/ScienceAlert.Windows/DraggableOptionsWindow.cs
index 09d597a..2f91cf7 100644
--- a/Source/ScienceAlert.Windows/DraggableOptionsWindow.cs
+++ b/Source/ScienceAlert.Windows/DraggableOptionsWindow.cs
@@ -108,6 +108,7 @@ protected override Rect Setup()
         {
             base.OnDestroy();
             OnVisibilityChange -= OnVisibilityChanged;
+            GameEvents.onVesselChange.Remove(OnVesselChanged);
         }
 
         private void OnVisibilityChanged(bool tf)