diff --git a/angular/package.json b/angular/package.json
index c6a1ba810..8f8e4096a 100644
--- a/angular/package.json
+++ b/angular/package.json
@@ -18,7 +18,7 @@
     "@angular/platform-browser": "^14.2.0",
     "@angular/platform-browser-dynamic": "^14.2.0",
     "@angular/router": "^14.2.0",
-    "gridstack": "^10.2.0",
+    "gridstack": "^10.2.1",
     "rxjs": "~7.5.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.11.4"
diff --git a/angular/projects/lib/src/lib/base-widget.ts b/angular/projects/lib/src/lib/base-widget.ts
index 9b3d5a71c..22fb917ed 100644
--- a/angular/projects/lib/src/lib/base-widget.ts
+++ b/angular/projects/lib/src/lib/base-widget.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack-item.component.ts 10.2.1
+ * gridstack-item.component.ts 10.2.1-dev
  * Copyright (c) 2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/angular/projects/lib/src/lib/gridstack-item.component.ts b/angular/projects/lib/src/lib/gridstack-item.component.ts
index 4c6ae4f57..9072d7ad3 100644
--- a/angular/projects/lib/src/lib/gridstack-item.component.ts
+++ b/angular/projects/lib/src/lib/gridstack-item.component.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack-item.component.ts 10.2.1
+ * gridstack-item.component.ts 10.2.1-dev
  * Copyright (c) 2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/angular/projects/lib/src/lib/gridstack.component.ts b/angular/projects/lib/src/lib/gridstack.component.ts
index aba4475f3..02ab9cb28 100644
--- a/angular/projects/lib/src/lib/gridstack.component.ts
+++ b/angular/projects/lib/src/lib/gridstack.component.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack.component.ts 10.2.1
+ * gridstack.component.ts 10.2.1-dev
  * Copyright (c) 2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/angular/projects/lib/src/lib/gridstack.module.ts b/angular/projects/lib/src/lib/gridstack.module.ts
index 17fdd8634..4545ec7da 100644
--- a/angular/projects/lib/src/lib/gridstack.module.ts
+++ b/angular/projects/lib/src/lib/gridstack.module.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack.component.ts 10.2.1
+ * gridstack.component.ts 10.2.1-dev
  * Copyright (c) 2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/angular/yarn.lock b/angular/yarn.lock
index 1255a10e3..093dd3e7f 100644
--- a/angular/yarn.lock
+++ b/angular/yarn.lock
@@ -3710,10 +3710,10 @@ graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.2.0, graceful-fs@^4.2.4,
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.11.tgz#4183e4e8bf08bb6e05bbb2f7d2e0c8f712ca40e3"
   integrity sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==
 
-gridstack@^10.2.0:
-  version "10.2.0"
-  resolved "https://registry.yarnpkg.com/gridstack/-/gridstack-10.2.0.tgz#4ba9c7ee69a730851721a9f5cb33dc55026ded1f"
-  integrity sha512-svKAOq/dfinpvhe/nnxdyZOOEd9qynXiOPHvL96PALE0yWChWp/6lechnqKwud0tL/rRyAfMJ6Hh/z2fS13pBA==
+gridstack@^10.2.1:
+  version "10.2.1"
+  resolved "https://registry.yarnpkg.com/gridstack/-/gridstack-10.2.1.tgz#3ce6119ae86cfb0a533c5f0d15b03777a55384ca"
+  integrity sha512-UAPKnIvd9sIqPDFMtKMqj0G5GDj8MUFPcelRJq7FzQFSxSYBblKts/Gd52iEJg0EvTFP51t6ZuMWGx0pSSFBdw==
 
 handle-thing@^2.0.0:
   version "2.0.1"
diff --git a/package.json b/package.json
index 494222acf..f0b855685 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gridstack",
-  "version": "10.2.1",
+  "version": "10.2.1-dev",
   "license": "MIT",
   "author": "Alain Dumesny <alaind831+github@gmail.com> (https://github.com/adumesny)",
   "contributors": [
diff --git a/src/dd-base-impl.ts b/src/dd-base-impl.ts
index a26b1ca37..be014a8c2 100644
--- a/src/dd-base-impl.ts
+++ b/src/dd-base-impl.ts
@@ -1,5 +1,5 @@
 /**
- * dd-base-impl.ts 10.2.1
+ * dd-base-impl.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-draggable.ts b/src/dd-draggable.ts
index a38b3935e..c83d52a95 100644
--- a/src/dd-draggable.ts
+++ b/src/dd-draggable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-draggable.ts 10.2.1
+ * dd-draggable.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-droppable.ts b/src/dd-droppable.ts
index 97e7650aa..600f5d40f 100644
--- a/src/dd-droppable.ts
+++ b/src/dd-droppable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-droppable.ts 10.2.1
+ * dd-droppable.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-element.ts b/src/dd-element.ts
index 41b94d68d..5a892e40a 100644
--- a/src/dd-element.ts
+++ b/src/dd-element.ts
@@ -1,5 +1,5 @@
 /**
- * dd-elements.ts 10.2.1
+ * dd-elements.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-gridstack.ts b/src/dd-gridstack.ts
index 530ef11b9..01b2f2980 100644
--- a/src/dd-gridstack.ts
+++ b/src/dd-gridstack.ts
@@ -1,5 +1,5 @@
 /**
- * dd-gridstack.ts 10.2.1
+ * dd-gridstack.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-manager.ts b/src/dd-manager.ts
index eef58f084..e093b6507 100644
--- a/src/dd-manager.ts
+++ b/src/dd-manager.ts
@@ -1,5 +1,5 @@
 /**
- * dd-manager.ts 10.2.1
+ * dd-manager.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-resizable-handle.ts b/src/dd-resizable-handle.ts
index 052a90a76..b1c5591de 100644
--- a/src/dd-resizable-handle.ts
+++ b/src/dd-resizable-handle.ts
@@ -1,5 +1,5 @@
 /**
- * dd-resizable-handle.ts 10.2.1
+ * dd-resizable-handle.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-resizable.ts b/src/dd-resizable.ts
index 3b3ef8bff..4ece42317 100644
--- a/src/dd-resizable.ts
+++ b/src/dd-resizable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-resizable.ts 10.2.1
+ * dd-resizable.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-touch.ts b/src/dd-touch.ts
index 5733c82bb..5bfe8ada2 100644
--- a/src/dd-touch.ts
+++ b/src/dd-touch.ts
@@ -1,5 +1,5 @@
 /**
- * touch.ts 10.2.1
+ * touch.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack-engine.ts b/src/gridstack-engine.ts
index 3fd0fc56b..cdf6e9658 100644
--- a/src/gridstack-engine.ts
+++ b/src/gridstack-engine.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack-engine.ts 10.2.1
+ * gridstack-engine.ts 10.2.1-dev
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack-poly.js b/src/gridstack-poly.js
index 27b1fd528..b55e31e2f 100644
--- a/src/gridstack-poly.js
+++ b/src/gridstack-poly.js
@@ -1,5 +1,5 @@
 /**
- * gridstack-poly.ts 10.2.1 used for IE and older browser support (not supported in v2-v4.3.1, but again in v4.4)
+ * gridstack-poly.ts 10.2.1-dev used for IE and older browser support (not supported in v2-v4.3.1, but again in v4.4)
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack.scss b/src/gridstack.scss
index ab491ee7f..b2f8e65d9 100644
--- a/src/gridstack.scss
+++ b/src/gridstack.scss
@@ -1,5 +1,5 @@
 /**
- * gridstack SASS styles 10.2.1
+ * gridstack SASS styles 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack.ts b/src/gridstack.ts
index 1da2416ab..2be126bd3 100644
--- a/src/gridstack.ts
+++ b/src/gridstack.ts
@@ -1,5 +1,5 @@
 /*!
- * GridStack 10.2.1
+ * GridStack 10.2.1-dev
  * https://gridstackjs.com/
  *
  * Copyright (c) 2021-2022 Alain Dumesny
@@ -1937,7 +1937,7 @@ export class GridStack {
     return this;
   }
 
-  static GDRev = '10.2.1';
+  static GDRev = '10.2.1-dev';
 
   /* ===========================================================================================
    * drag&drop methods that used to be stubbed out and implemented in dd-gridstack.ts
diff --git a/src/types.ts b/src/types.ts
index 8792adfee..dd4fd9c4d 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,5 +1,5 @@
 /**
- * types.ts 10.2.1
+ * types.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/utils.ts b/src/utils.ts
index 821e1a139..7b17b706e 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,5 @@
 /**
- * utils.ts 10.2.1
+ * utils.ts 10.2.1-dev
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */