diff --git a/angular/projects/lib/package.json b/angular/projects/lib/package.json
index 164098fba..e9a1ab2b4 100644
--- a/angular/projects/lib/package.json
+++ b/angular/projects/lib/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gridstack-angular",
-  "version": "9.0.2-dev",
+  "version": "9.1.0",
   "peerDependencies": {
     "@angular/common": "^14.2.0",
     "@angular/core": "^14.2.0"
diff --git a/angular/projects/lib/src/lib/base-widget.ts b/angular/projects/lib/src/lib/base-widget.ts
index 430c64076..ec769a8cf 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 9.0.2-dev
+ * gridstack-item.component.ts 9.1.0
  * 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 e195ba5da..288fbbba6 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 9.0.2-dev
+ * gridstack-item.component.ts 9.1.0
  * 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 de9f884b9..6a554ce67 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 9.0.2-dev
+ * gridstack.component.ts 9.1.0
  * 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 9918654d4..e72c1df65 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 9.0.2-dev
+ * gridstack.component.ts 9.1.0
  * Copyright (c) 2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/doc/CHANGES.md b/doc/CHANGES.md
index 9d57f1e04..e7efeb445 100644
--- a/doc/CHANGES.md
+++ b/doc/CHANGES.md
@@ -5,7 +5,7 @@ Change log
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
 **Table of Contents**  *generated with [DocToc](http://doctoc.herokuapp.com/)*
 
-- [9.0.2-dev (TBD)](#902-dev-tbd)
+- [9.1.0 (2023-09-04)](#910-2023-09-04)
 - [9.0.2 (2023-08-29)](#902-2023-08-29)
 - [9.0.1 (2023-08-27)](#901-2023-08-27)
 - [9.0.0 (2023-08-23)](#900-2023-08-23)
@@ -96,7 +96,7 @@ Change log
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
-## 9.0.2-dev (TBD)
+## 9.1.0 (2023-09-04)
 * renamed fitToContent to sizeToContent (API BREAK)
 * feat: `sizeToContent` now supports being `boolean|number` to limit the height but user can resize past that, unlike maxH.
 * feat: `resizeToContentParent` now on GridStackWidget for those widgets that need to resize differently.
diff --git a/package.json b/package.json
index 45e1140b6..bfbe13346 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gridstack",
-  "version": "9.0.2-dev",
+  "version": "9.1.0",
   "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 97f1cdcbc..d4c99c51d 100644
--- a/src/dd-base-impl.ts
+++ b/src/dd-base-impl.ts
@@ -1,5 +1,5 @@
 /**
- * dd-base-impl.ts 9.0.2-dev
+ * dd-base-impl.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-draggable.ts b/src/dd-draggable.ts
index ca91b57db..4002dca08 100644
--- a/src/dd-draggable.ts
+++ b/src/dd-draggable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-draggable.ts 9.0.2-dev
+ * dd-draggable.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-droppable.ts b/src/dd-droppable.ts
index fe5db4536..4cb38a901 100644
--- a/src/dd-droppable.ts
+++ b/src/dd-droppable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-droppable.ts 9.0.2-dev
+ * dd-droppable.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-element.ts b/src/dd-element.ts
index e29b1860e..f60a794ed 100644
--- a/src/dd-element.ts
+++ b/src/dd-element.ts
@@ -1,5 +1,5 @@
 /**
- * dd-elements.ts 9.0.2-dev
+ * dd-elements.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-gridstack.ts b/src/dd-gridstack.ts
index 3c8cb408f..e0b0b6c76 100644
--- a/src/dd-gridstack.ts
+++ b/src/dd-gridstack.ts
@@ -1,5 +1,5 @@
 /**
- * dd-gridstack.ts 9.0.2-dev
+ * dd-gridstack.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-manager.ts b/src/dd-manager.ts
index befd545b9..3fad8de74 100644
--- a/src/dd-manager.ts
+++ b/src/dd-manager.ts
@@ -1,5 +1,5 @@
 /**
- * dd-manager.ts 9.0.2-dev
+ * dd-manager.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-resizable-handle.ts b/src/dd-resizable-handle.ts
index 4757cd4b3..f338192b4 100644
--- a/src/dd-resizable-handle.ts
+++ b/src/dd-resizable-handle.ts
@@ -1,5 +1,5 @@
 /**
- * dd-resizable-handle.ts 9.0.2-dev
+ * dd-resizable-handle.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-resizable.ts b/src/dd-resizable.ts
index 58c7f8fdd..94da6c641 100644
--- a/src/dd-resizable.ts
+++ b/src/dd-resizable.ts
@@ -1,5 +1,5 @@
 /**
- * dd-resizable.ts 9.0.2-dev
+ * dd-resizable.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/dd-touch.ts b/src/dd-touch.ts
index b7ad69cec..6dbeab48d 100644
--- a/src/dd-touch.ts
+++ b/src/dd-touch.ts
@@ -1,5 +1,5 @@
 /**
- * touch.ts 9.0.2-dev
+ * touch.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack-engine.ts b/src/gridstack-engine.ts
index bef144c15..e8b405f9a 100644
--- a/src/gridstack-engine.ts
+++ b/src/gridstack-engine.ts
@@ -1,5 +1,5 @@
 /**
- * gridstack-engine.ts 9.0.2-dev
+ * gridstack-engine.ts 9.1.0
  * Copyright (c) 2021-2022 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack-poly.js b/src/gridstack-poly.js
index aa1fd13e3..b63157c15 100644
--- a/src/gridstack-poly.js
+++ b/src/gridstack-poly.js
@@ -1,5 +1,5 @@
 /**
- * gridstack-poly.ts 9.0.2-dev used for IE and older browser support (not supported in v2-v4.3.1, but again in v4.4)
+ * gridstack-poly.ts 9.1.0 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 41bd887f7..004e0ff16 100644
--- a/src/gridstack.scss
+++ b/src/gridstack.scss
@@ -1,5 +1,5 @@
 /**
- * gridstack SASS styles 9.0.2-dev
+ * gridstack SASS styles 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/gridstack.ts b/src/gridstack.ts
index faebb9d70..0496f3909 100644
--- a/src/gridstack.ts
+++ b/src/gridstack.ts
@@ -1,5 +1,5 @@
 /*!
- * GridStack 9.0.2-dev
+ * GridStack 9.1.0
  * https://gridstackjs.com/
  *
  * Copyright (c) 2021-2022 Alain Dumesny
@@ -1764,7 +1764,7 @@ export class GridStack {
     return this;
   }
 
-  static GDRev = '9.0.2-dev';
+  static GDRev = '9.1.0';
 
   /* ===========================================================================================
    * 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 37b139c34..a162e5d3d 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,5 +1,5 @@
 /**
- * types.ts 9.0.2-dev
+ * types.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/src/utils.ts b/src/utils.ts
index e3c571a30..d0690a4a4 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,5 +1,5 @@
 /**
- * utils.ts 9.0.2-dev
+ * utils.ts 9.1.0
  * Copyright (c) 2021 Alain Dumesny - see GridStack root license
  */
 
diff --git a/webpack.config.js b/webpack.config.js
index b6c859340..2a85b970e 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -5,8 +5,8 @@ module.exports = {
     'gridstack-all': './src/gridstack.ts',
   },
   mode: 'production', // production vs development
-  devtool: 'source-map',
-  // devtool: 'eval-source-map', // for best (large .js) debugging. see https://survivejs.com/webpack/building/source-maps/
+  // devtool: 'source-map',
+  devtool: 'eval-source-map', // for best (large .js) debugging. see https://survivejs.com/webpack/building/source-maps/
   module: {
     rules: [
       {