diff --git a/HISTORY.md b/HISTORY.md
index 15be5f4b1..79d26a86d 100755
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,8 @@
 # Snap! (BYOB) History
 
 ## in development:
+
+## 10.0.1:
 * **Notable Changes:**
     * SciSnap! v3 extension, update - new major release -, thanks, Eckart!
     * exclude "reportHyperZip" from collected block dependencies for libraries etc.
@@ -15,6 +17,7 @@
 
 ### 2024-08-08
 * sw.js: fixed PWA cache for backgrounds
+* prepared v10.0.1 patch
 
 ### 2024-08-07
 * embroidery library: fixed customized "GO TO" primitive for selected target sprite, (partially) enables nested sprites trails embroidery
diff --git a/snap.html b/snap.html
index 04b51be3e..7d476d737 100755
--- a/snap.html
+++ b/snap.html
@@ -20,7 +20,7 @@
         <script src="src/threads.js?version=2024-08-05"></script>
         <script src="src/objects.js?version=2024-08-07"></script>
         <script src="src/scenes.js?version=2024-05-28"></script>
-        <script src="src/gui.js?version=2024-08-05"></script>
+        <script src="src/gui.js?version=2024-08-08"></script>
         <script src="src/paint.js?version=2023-05-24"></script>
         <script src="src/lists.js?version=2024-04-08"></script>
         <script src="src/byob.js?version=2024-08-05"></script>
diff --git a/src/gui.js b/src/gui.js
index efc923d4a..0508d9d69 100644
--- a/src/gui.js
+++ b/src/gui.js
@@ -87,11 +87,11 @@ BlockVisibilityDialogMorph, ThreadManager, isString, SnapExtensions, snapEquals
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.gui = '2024-August-05';
+modules.gui = '2024-August-08';
 
 // Declarations
 
-var SnapVersion = '10.0.1-dev';
+var SnapVersion = '10.0.1';
 
 var IDE_Morph;
 var ProjectDialogMorph;
diff --git a/sw.js b/sw.js
index ac07281cc..a8499e0f7 100644
--- a/sw.js
+++ b/sw.js
@@ -1,4 +1,4 @@
-var snapVersion = '10.0.1-dev',
+var snapVersion = '10.0.1',
     cacheName = `snap-pwa-${snapVersion}`,
     filesToCache = [
         'snap.html',