diff --git a/apps/docs/CHANGELOG.md b/apps/docs/CHANGELOG.md
index f262a70d..8dcd5ae2 100644
--- a/apps/docs/CHANGELOG.md
+++ b/apps/docs/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-docs
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-terminal@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+  - @difizen/libro-core@0.3.49
+  - @difizen/libro-lab@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/apps/docs/package.json b/apps/docs/package.json
index 0cef0009..6c89d870 100644
--- a/apps/docs/package.json
+++ b/apps/docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-docs",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "private": true,
   "license": "MIT",
   "description": "Document site for mana",
@@ -23,10 +23,10 @@
   "packageManager": "pnpm@8.4.0",
   "dependencies": {
     "@ant-design/icons": "^5.4.0",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
-    "@difizen/libro-lab": "^0.3.48",
-    "@difizen/libro-terminal": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
+    "@difizen/libro-lab": "^0.3.49",
+    "@difizen/libro-terminal": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "@difizen/mana-react": "latest",
diff --git a/packages/libro-ai-native/CHANGELOG.md b/packages/libro-ai-native/CHANGELOG.md
index 534ccbf6..a5ff2f48 100644
--- a/packages/libro-ai-native/CHANGELOG.md
+++ b/packages/libro-ai-native/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @difizen/libro-output
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-ai-native/package.json b/packages/libro-ai-native/package.json
index d6fa9395..b3bf4022 100644
--- a/packages/libro-ai-native/package.json
+++ b/packages/libro-ai-native/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-ai-native",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -46,8 +46,8 @@
   },
   "dependencies": {
     "@ant-design/icons": "^5.4.0",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
     "@difizen/magent-chat": "^0.1.27",
     "@difizen/magent-core": "^0.1.27",
     "@difizen/magent-libro": "^0.1.27",
diff --git a/packages/libro-app/CHANGELOG.md b/packages/libro-app/CHANGELOG.md
index 7d9134da..95f23722 100644
--- a/packages/libro-app/CHANGELOG.md
+++ b/packages/libro-app/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @difizen/libro-output
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-jupyter@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-app/package.json b/packages/libro-app/package.json
index fad034af..d7fa1063 100644
--- a/packages/libro-app/package.json
+++ b/packages/libro-app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-app",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,7 +45,7 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-jupyter": "^0.3.48",
+    "@difizen/libro-jupyter": "^0.3.49",
     "@ant-design/icons": "^5.4.0",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest"
diff --git a/packages/libro-code-cell/CHANGELOG.md b/packages/libro-code-cell/CHANGELOG.md
index 6b0ff03f..09d6b3cb 100644
--- a/packages/libro-code-cell/CHANGELOG.md
+++ b/packages/libro-code-cell/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-codemirror-code-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-code-cell/package.json b/packages/libro-code-cell/package.json
index 92363aef..b199ac3d 100644
--- a/packages/libro-code-cell/package.json
+++ b/packages/libro-code-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-code-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,9 +45,9 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "highlight.js": "^11.11.1"
diff --git a/packages/libro-code-editor/CHANGELOG.md b/packages/libro-code-editor/CHANGELOG.md
index 14ec23e3..2827447e 100644
--- a/packages/libro-code-editor/CHANGELOG.md
+++ b/packages/libro-code-editor/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @difizen/libro-code-editor
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-common@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-code-editor/package.json b/packages/libro-code-editor/package.json
index 6fdc8dba..0aaf7da4 100644
--- a/packages/libro-code-editor/package.json
+++ b/packages/libro-code-editor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-code-editor",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,7 +45,7 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "uuid": "^9.0.1"
diff --git a/packages/libro-code-editor/src/code-editor-view.tsx b/packages/libro-code-editor/src/code-editor-view.tsx
index b2214a89..730a69d8 100644
--- a/packages/libro-code-editor/src/code-editor-view.tsx
+++ b/packages/libro-code-editor/src/code-editor-view.tsx
@@ -185,7 +185,7 @@ export class CodeEditorView extends BaseView {
   };
 
   override onViewUnmount = () => {
-    if (this.editor.hasFocus()) {
+    if (this.editor?.hasFocus()) {
       // 保存编辑器状态
       const editorState = this.editor.getState();
       this.codeEditorStateManager.updateEditorState(this.options.uuid, editorState);
@@ -193,7 +193,7 @@ export class CodeEditorView extends BaseView {
       this.editorHostRef = this.getEditorHost();
       this.editorHostRef?.current?.focus();
     }
-    this.editor.dispose();
+    this.editor?.dispose();
 
     const prevState = this.editorStatus;
     this.editorStatus = 'disposed';
@@ -219,7 +219,7 @@ export class CodeEditorView extends BaseView {
    * Get the model used by the widget.
    */
   get model(): IModel {
-    return this.editor.model;
+    return this.editor?.model || this.options.model;
   }
 
   /**
@@ -230,11 +230,11 @@ export class CodeEditorView extends BaseView {
       return;
     }
     super.dispose();
-    this.editor.dispose();
+    this.editor?.dispose();
   }
 
   protected onViewActive = (): void => {
-    this.editor.focus();
+    this.editor?.focus();
   };
 
   /**
@@ -242,7 +242,7 @@ export class CodeEditorView extends BaseView {
    */
   protected onResize(): void {
     if (this.isVisible) {
-      this.editor.resizeToFit();
+      this.editor?.resizeToFit();
     }
   }
 
@@ -261,6 +261,9 @@ export class CodeEditorView extends BaseView {
    * Handle a change in model selections.
    */
   protected _onSelectionsChanged(): void {
+    if (!this.editor) {
+      return;
+    }
     const { start, end } = this.editor.getSelection();
 
     if (start.column !== end.column || start.line !== end.line) {
@@ -285,7 +288,7 @@ export class CodeEditorView extends BaseView {
    * Handle the `'lm-dragenter'` event for the widget.
    */
   protected _evtDragEnter = (event: DragEvent): void => {
-    if (this.editor.getOption('readOnly') === true) {
+    if (this.editor?.getOption('readOnly') === true) {
       return;
     }
     const data = findTextData(event);
diff --git a/packages/libro-codemirror/CHANGELOG.md b/packages/libro-codemirror/CHANGELOG.md
index d98581d8..dc539929 100644
--- a/packages/libro-codemirror/CHANGELOG.md
+++ b/packages/libro-codemirror/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-codemirror
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-lsp@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-codemirror/package.json b/packages/libro-codemirror/package.json
index a769e054..e78c9287 100644
--- a/packages/libro-codemirror/package.json
+++ b/packages/libro-codemirror/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-codemirror",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -54,10 +54,10 @@
     "@codemirror/search": "^6.0.0",
     "@codemirror/state": "^6.4.0",
     "@codemirror/view": "^6.23.0",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-lsp": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-lsp": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
     "@difizen/mana-l10n": "latest",
     "@difizen/mana-app": "latest",
     "@lezer/common": "^1.2.1",
diff --git a/packages/libro-cofine-editor-contribution/CHANGELOG.md b/packages/libro-cofine-editor-contribution/CHANGELOG.md
index 155a33ec..4ce864e8 100644
--- a/packages/libro-cofine-editor-contribution/CHANGELOG.md
+++ b/packages/libro-cofine-editor-contribution/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @difizen/libro-codemirror-markdown-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-cofine-editor-contribution/package.json b/packages/libro-cofine-editor-contribution/package.json
index bdf84727..4fd6928f 100644
--- a/packages/libro-cofine-editor-contribution/package.json
+++ b/packages/libro-cofine-editor-contribution/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-cofine-editor-contribution",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
diff --git a/packages/libro-cofine-editor-core/CHANGELOG.md b/packages/libro-cofine-editor-core/CHANGELOG.md
index e151bdbc..cdce9f9c 100644
--- a/packages/libro-cofine-editor-core/CHANGELOG.md
+++ b/packages/libro-cofine-editor-core/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @difizen/libro-codemirror-markdown-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-cofine-editor-contribution@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-cofine-editor-core/package.json b/packages/libro-cofine-editor-core/package.json
index 86070750..c41d2cd9 100644
--- a/packages/libro-cofine-editor-core/package.json
+++ b/packages/libro-cofine-editor-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-cofine-editor-core",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -48,7 +48,7 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-cofine-editor-contribution": "^0.3.48",
+    "@difizen/libro-cofine-editor-contribution": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/monaco-editor-core": "0.39.4",
     "debug": "^4.3.2",
diff --git a/packages/libro-cofine-editor/CHANGELOG.md b/packages/libro-cofine-editor/CHANGELOG.md
index 0d6a341d..464faeb0 100644
--- a/packages/libro-cofine-editor/CHANGELOG.md
+++ b/packages/libro-cofine-editor/CHANGELOG.md
@@ -1,5 +1,19 @@
 # @difizen/libro-codemirror-markdown-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-cofine-editor-core@0.3.49
+  - @difizen/libro-cofine-textmate@0.3.49
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+  - @difizen/libro-lsp@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-cofine-editor/package.json b/packages/libro-cofine-editor/package.json
index 357021f0..a649d119 100644
--- a/packages/libro-cofine-editor/package.json
+++ b/packages/libro-cofine-editor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-cofine-editor",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -46,12 +46,12 @@
   },
   "dependencies": {
     "@difizen/monaco-editor-core": "0.39.4",
-    "@difizen/libro-cofine-editor-core": "^0.3.48",
-    "@difizen/libro-cofine-textmate": "^0.3.48",
-    "@difizen/libro-lsp": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-cofine-editor-core": "^0.3.49",
+    "@difizen/libro-cofine-textmate": "^0.3.49",
+    "@difizen/libro-lsp": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@difizen/mana-app": "latest",
     "resize-observer-polyfill": "^1.5.1",
     "vscode-languageserver-protocol": "^3.17.4",
diff --git a/packages/libro-cofine-textmate/CHANGELOG.md b/packages/libro-cofine-textmate/CHANGELOG.md
index 3ea760ca..27494876 100644
--- a/packages/libro-cofine-textmate/CHANGELOG.md
+++ b/packages/libro-cofine-textmate/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @difizen/libro-codemirror-markdown-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-cofine-editor-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-cofine-textmate/package.json b/packages/libro-cofine-textmate/package.json
index cec7d561..504cefc6 100644
--- a/packages/libro-cofine-textmate/package.json
+++ b/packages/libro-cofine-textmate/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-cofine-textmate",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -46,7 +46,7 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-cofine-editor-core": "^0.3.48",
+    "@difizen/libro-cofine-editor-core": "^0.3.49",
     "@difizen/mana-app": "latest",
     "fast-plist": "^0.1.2",
     "vscode-oniguruma": "^1.5.1",
diff --git a/packages/libro-common/CHANGELOG.md b/packages/libro-common/CHANGELOG.md
index 5e9035ed..70caa1fc 100644
--- a/packages/libro-common/CHANGELOG.md
+++ b/packages/libro-common/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @difizen/libro-common
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-common/package.json b/packages/libro-common/package.json
index e75b2b2e..00d89114 100644
--- a/packages/libro-common/package.json
+++ b/packages/libro-common/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-common",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
diff --git a/packages/libro-core/CHANGELOG.md b/packages/libro-core/CHANGELOG.md
index 4933761a..c5532cdd 100644
--- a/packages/libro-core/CHANGELOG.md
+++ b/packages/libro-core/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-core
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-shared-model@0.3.49
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-virtualized@0.3.49
+  - @difizen/libro-common@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-core/package.json b/packages/libro-core/package.json
index 8785abc2..d2bd535c 100644
--- a/packages/libro-core/package.json
+++ b/packages/libro-core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-core",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -47,10 +47,10 @@
   },
   "dependencies": {
     "@ant-design/icons": "^5.1.0",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-shared-model": "^0.3.48",
-    "@difizen/libro-virtualized": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-shared-model": "^0.3.49",
+    "@difizen/libro-virtualized": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "@difizen/mana-react": "latest",
diff --git a/packages/libro-jupyter/CHANGELOG.md b/packages/libro-jupyter/CHANGELOG.md
index bcd8d87b..c79cdaad 100644
--- a/packages/libro-jupyter/CHANGELOG.md
+++ b/packages/libro-jupyter/CHANGELOG.md
@@ -1,5 +1,29 @@
 # @difizen/libro-jupyter
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-search-code-cell@0.3.49
+  - @difizen/libro-language-client@0.3.49
+  - @difizen/libro-cofine-editor@0.3.49
+  - @difizen/libro-markdown-cell@0.3.49
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-codemirror@0.3.49
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-code-cell@0.3.49
+  - @difizen/libro-raw-cell@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-output@0.3.49
+  - @difizen/libro-search@0.3.49
+  - @difizen/libro-core@0.3.49
+  - @difizen/libro-l10n@0.3.49
+  - @difizen/libro-lsp@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-jupyter/package.json b/packages/libro-jupyter/package.json
index 6ad3a25e..0ff9f9ac 100644
--- a/packages/libro-jupyter/package.json
+++ b/packages/libro-jupyter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-jupyter",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro"
@@ -50,22 +50,22 @@
   "dependencies": {
     "@ant-design/colors": "^7.0.0",
     "@ant-design/icons": "^5.1.0",
-    "@difizen/libro-code-cell": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-codemirror": "^0.3.48",
-    "@difizen/libro-cofine-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
-    "@difizen/libro-l10n": "^0.3.48",
-    "@difizen/libro-language-client": "^0.3.48",
-    "@difizen/libro-lsp": "^0.3.48",
-    "@difizen/libro-markdown-cell": "^0.3.48",
-    "@difizen/libro-output": "^0.3.48",
-    "@difizen/libro-raw-cell": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
-    "@difizen/libro-search": "^0.3.48",
-    "@difizen/libro-search-code-cell": "^0.3.48",
+    "@difizen/libro-code-cell": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-codemirror": "^0.3.49",
+    "@difizen/libro-cofine-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
+    "@difizen/libro-l10n": "^0.3.49",
+    "@difizen/libro-language-client": "^0.3.49",
+    "@difizen/libro-lsp": "^0.3.49",
+    "@difizen/libro-markdown-cell": "^0.3.49",
+    "@difizen/libro-output": "^0.3.49",
+    "@difizen/libro-raw-cell": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
+    "@difizen/libro-search": "^0.3.49",
+    "@difizen/libro-search-code-cell": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "classnames": "^2.3.2",
diff --git a/packages/libro-kernel/CHANGELOG.md b/packages/libro-kernel/CHANGELOG.md
index 5fa1146f..9b0e9b43 100644
--- a/packages/libro-kernel/CHANGELOG.md
+++ b/packages/libro-kernel/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @difizen/libro-kernel
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-kernel/package.json b/packages/libro-kernel/package.json
index bc711db5..323f8d0b 100644
--- a/packages/libro-kernel/package.json
+++ b/packages/libro-kernel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-kernel",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "ai-infra",
@@ -45,8 +45,8 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@difizen/mana-app": "latest",
     "minimist": "^1.2.8",
     "query-string": "^8.1.0",
diff --git a/packages/libro-l10n/CHANGELOG.md b/packages/libro-l10n/CHANGELOG.md
index 1c5c0ad9..04d35697 100644
--- a/packages/libro-l10n/CHANGELOG.md
+++ b/packages/libro-l10n/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @difizen/libro-l10n
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-l10n/package.json b/packages/libro-l10n/package.json
index 04d4e30d..fc790016 100644
--- a/packages/libro-l10n/package.json
+++ b/packages/libro-l10n/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-l10n",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
diff --git a/packages/libro-lab/CHANGELOG.md b/packages/libro-lab/CHANGELOG.md
index f7221a39..52a91612 100644
--- a/packages/libro-lab/CHANGELOG.md
+++ b/packages/libro-lab/CHANGELOG.md
@@ -1,5 +1,26 @@
 # @difizen/libro-lab
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-cofine-editor-core@0.3.49
+  - @difizen/libro-language-client@0.3.49
+  - @difizen/libro-prompt-cell@0.3.49
+  - @difizen/libro-ai-native@0.3.49
+  - @difizen/libro-sql-cell@0.3.49
+  - @difizen/libro-terminal@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-widget@0.3.49
+  - @difizen/libro-core@0.3.49
+  - @difizen/libro-l10n@0.3.49
+  - @difizen/libro-app@0.3.49
+  - @difizen/libro-toc@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-lab/package.json b/packages/libro-lab/package.json
index c01fb6f7..1d70b68d 100644
--- a/packages/libro-lab/package.json
+++ b/packages/libro-lab/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-lab",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -47,19 +47,19 @@
   },
   "dependencies": {
     "@ant-design/icons": "^5.1.0",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
-    "@difizen/libro-prompt-cell": "^0.3.48",
-    "@difizen/libro-sql-cell": "^0.3.48",
-    "@difizen/libro-terminal": "^0.3.48",
-    "@difizen/libro-toc": "^0.3.48",
-    "@difizen/libro-app": "^0.3.48",
-    "@difizen/libro-cofine-editor-core": "^0.3.48",
-    "@difizen/libro-language-client": "^0.3.48",
-    "@difizen/libro-widget": "^0.3.48",
-    "@difizen/libro-l10n": "^0.3.48",
-    "@difizen/libro-ai-native": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
+    "@difizen/libro-prompt-cell": "^0.3.49",
+    "@difizen/libro-sql-cell": "^0.3.49",
+    "@difizen/libro-terminal": "^0.3.49",
+    "@difizen/libro-toc": "^0.3.49",
+    "@difizen/libro-app": "^0.3.49",
+    "@difizen/libro-cofine-editor-core": "^0.3.49",
+    "@difizen/libro-language-client": "^0.3.49",
+    "@difizen/libro-widget": "^0.3.49",
+    "@difizen/libro-l10n": "^0.3.49",
+    "@difizen/libro-ai-native": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "@difizen/mana-common": "latest",
diff --git a/packages/libro-language-client/CHANGELOG.md b/packages/libro-language-client/CHANGELOG.md
index e124dc5f..c8cdead8 100644
--- a/packages/libro-language-client/CHANGELOG.md
+++ b/packages/libro-language-client/CHANGELOG.md
@@ -1,5 +1,18 @@
 # libro-langauge-client
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-core@0.3.49
+  - @difizen/libro-lsp@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-language-client/package.json b/packages/libro-language-client/package.json
index d89f7757..280e3d1b 100644
--- a/packages/libro-language-client/package.json
+++ b/packages/libro-language-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-language-client",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,11 +45,11 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-lsp": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-lsp": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-common": "latest",
     "uuid": "^9.0.0",
diff --git a/packages/libro-lsp/CHANGELOG.md b/packages/libro-lsp/CHANGELOG.md
index 4df9988c..faf8c0f7 100644
--- a/packages/libro-lsp/CHANGELOG.md
+++ b/packages/libro-lsp/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-code-editor
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-lsp/package.json b/packages/libro-lsp/package.json
index 78d06c28..58c2cf2d 100644
--- a/packages/libro-lsp/package.json
+++ b/packages/libro-lsp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-lsp",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,10 +45,10 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
     "@difizen/mana-app": "latest",
     "lodash.mergewith": "^4.6.2",
     "uuid": "^9.0.0",
diff --git a/packages/libro-markdown-cell/CHANGELOG.md b/packages/libro-markdown-cell/CHANGELOG.md
index 1e454893..2df0eb99 100644
--- a/packages/libro-markdown-cell/CHANGELOG.md
+++ b/packages/libro-markdown-cell/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-markdown
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-markdown@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-markdown-cell/package.json b/packages/libro-markdown-cell/package.json
index 709c4e96..806dd39b 100644
--- a/packages/libro-markdown-cell/package.json
+++ b/packages/libro-markdown-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-markdown-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -52,10 +52,10 @@
     "@types/react": "^18.2.25"
   },
   "dependencies": {
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-markdown": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-markdown": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@types/markdown-it": "^12.2.3",
     "markdown-it": "^13.0.1",
diff --git a/packages/libro-markdown/CHANGELOG.md b/packages/libro-markdown/CHANGELOG.md
index d4e71ac5..b6b7f090 100644
--- a/packages/libro-markdown/CHANGELOG.md
+++ b/packages/libro-markdown/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @difizen/libro-markdown
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-markdown/package.json b/packages/libro-markdown/package.json
index 86a20666..0dbcc16b 100644
--- a/packages/libro-markdown/package.json
+++ b/packages/libro-markdown/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-markdown",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
diff --git a/packages/libro-output/CHANGELOG.md b/packages/libro-output/CHANGELOG.md
index 7c29e220..6893c5b6 100644
--- a/packages/libro-output/CHANGELOG.md
+++ b/packages/libro-output/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-output
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-output/package.json b/packages/libro-output/package.json
index ee4f1345..f1a2533a 100644
--- a/packages/libro-output/package.json
+++ b/packages/libro-output/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-output",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,9 +45,9 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "^0.1.32",
     "markdown-it": "^13.0.1",
diff --git a/packages/libro-prompt-cell/CHANGELOG.md b/packages/libro-prompt-cell/CHANGELOG.md
index 3a2284ff..aed0f52a 100644
--- a/packages/libro-prompt-cell/CHANGELOG.md
+++ b/packages/libro-prompt-cell/CHANGELOG.md
@@ -1,5 +1,18 @@
 # @difizen/libro-prompt-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-prompt-cell/package.json b/packages/libro-prompt-cell/package.json
index ceb9b0bb..c0e6d24d 100644
--- a/packages/libro-prompt-cell/package.json
+++ b/packages/libro-prompt-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-prompt-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,11 +45,11 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@ant-design/icons": "^5.1.0",
     "@difizen/mana-l10n": "latest",
     "@difizen/mana-app": "latest",
diff --git a/packages/libro-raw-cell/CHANGELOG.md b/packages/libro-raw-cell/CHANGELOG.md
index f553db92..af46ab8b 100644
--- a/packages/libro-raw-cell/CHANGELOG.md
+++ b/packages/libro-raw-cell/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-codemirror-raw-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-raw-cell/package.json b/packages/libro-raw-cell/package.json
index a9e61720..c6d39c93 100644
--- a/packages/libro-raw-cell/package.json
+++ b/packages/libro-raw-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-raw-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,9 +45,9 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@difizen/mana-app": "latest"
   },
   "peerDependencies": {
diff --git a/packages/libro-rendermime/CHANGELOG.md b/packages/libro-rendermime/CHANGELOG.md
index b5890c3f..d2c2d155 100644
--- a/packages/libro-rendermime/CHANGELOG.md
+++ b/packages/libro-rendermime/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-rendermime
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-markdown@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-rendermime/package.json b/packages/libro-rendermime/package.json
index acba2f87..aadb8c73 100644
--- a/packages/libro-rendermime/package.json
+++ b/packages/libro-rendermime/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-rendermime",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,9 +45,9 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-markdown": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-markdown": "^0.3.49",
     "@difizen/mana-app": "latest",
     "lodash.escape": "^4.0.1"
   },
diff --git a/packages/libro-search-code-cell/CHANGELOG.md b/packages/libro-search-code-cell/CHANGELOG.md
index cfe43d2a..b2c4b914 100644
--- a/packages/libro-search-code-cell/CHANGELOG.md
+++ b/packages/libro-search-code-cell/CHANGELOG.md
@@ -1,5 +1,18 @@
 # @difizen/libro-search-codemirror-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-code-cell@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-search@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-search-code-cell/package.json b/packages/libro-search-code-cell/package.json
index 0884ae46..46b1acbc 100644
--- a/packages/libro-search-code-cell/package.json
+++ b/packages/libro-search-code-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-search-code-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,11 +45,11 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-code-cell": "^0.3.48",
-    "@difizen/libro-search": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-code-cell": "^0.3.49",
+    "@difizen/libro-search": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
     "@difizen/mana-app": "latest"
   }
 }
diff --git a/packages/libro-search/CHANGELOG.md b/packages/libro-search/CHANGELOG.md
index b7eb2b00..57531fad 100644
--- a/packages/libro-search/CHANGELOG.md
+++ b/packages/libro-search/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-search
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-search/package.json b/packages/libro-search/package.json
index eef46d91..56c23300 100644
--- a/packages/libro-search/package.json
+++ b/packages/libro-search/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-search",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -49,9 +49,9 @@
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
     "@ant-design/icons": "^5.1.0",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-code-editor": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-code-editor": "^0.3.49",
     "@types/lodash.debounce": "^4.0.7",
     "classnames": "^2.3.2",
     "lodash.debounce": "^4.0.8",
diff --git a/packages/libro-shared-model/CHANGELOG.md b/packages/libro-shared-model/CHANGELOG.md
index 4ce070d7..87140f6b 100644
--- a/packages/libro-shared-model/CHANGELOG.md
+++ b/packages/libro-shared-model/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @difizen/libro-shared-model
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-common@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-shared-model/package.json b/packages/libro-shared-model/package.json
index cd655f7e..9e84f1bf 100644
--- a/packages/libro-shared-model/package.json
+++ b/packages/libro-shared-model/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-shared-model",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,7 +45,7 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-common": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
     "@difizen/mana-app": "latest",
     "uuid": "^9.0.0",
     "y-protocols": "^1.0.5",
diff --git a/packages/libro-sql-cell/CHANGELOG.md b/packages/libro-sql-cell/CHANGELOG.md
index c3ccdba3..4b9819c8 100644
--- a/packages/libro-sql-cell/CHANGELOG.md
+++ b/packages/libro-sql-cell/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-sql-cell
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-code-editor@0.3.49
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+  - @difizen/libro-common@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-sql-cell/package.json b/packages/libro-sql-cell/package.json
index 6748cf69..92965896 100644
--- a/packages/libro-sql-cell/package.json
+++ b/packages/libro-sql-cell/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-sql-cell",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -45,10 +45,10 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-code-editor": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
+    "@difizen/libro-code-editor": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
     "@ant-design/icons": "^5.1.0",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest"
diff --git a/packages/libro-terminal/CHANGELOG.md b/packages/libro-terminal/CHANGELOG.md
index 7eb1919e..9986b7a9 100644
--- a/packages/libro-terminal/CHANGELOG.md
+++ b/packages/libro-terminal/CHANGELOG.md
@@ -1,5 +1,16 @@
 # @difizen/libro-widget
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-terminal/package.json b/packages/libro-terminal/package.json
index ff0f9c55..42934cab 100644
--- a/packages/libro-terminal/package.json
+++ b/packages/libro-terminal/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-terminal",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro"
@@ -44,9 +44,9 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
     "@ant-design/icons": "^5.1.0",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest",
diff --git a/packages/libro-toc/CHANGELOG.md b/packages/libro-toc/CHANGELOG.md
index aa970fcb..de0793ce 100644
--- a/packages/libro-toc/CHANGELOG.md
+++ b/packages/libro-toc/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @difizen/libro-toc
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-markdown@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-toc/package.json b/packages/libro-toc/package.json
index 7b0e2b88..5c409ea7 100644
--- a/packages/libro-toc/package.json
+++ b/packages/libro-toc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-toc",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
@@ -47,10 +47,10 @@
   },
   "dependencies": {
     "@ant-design/icons": "^6.0.0",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-markdown": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-markdown": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
     "@difizen/mana-app": "latest",
     "@difizen/mana-l10n": "latest"
   },
diff --git a/packages/libro-virtualized/CHANGELOG.md b/packages/libro-virtualized/CHANGELOG.md
index 199d44bb..8159906f 100644
--- a/packages/libro-virtualized/CHANGELOG.md
+++ b/packages/libro-virtualized/CHANGELOG.md
@@ -1,5 +1,11 @@
 # @difizen/libro-code-editor
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-virtualized/package.json b/packages/libro-virtualized/package.json
index 89daa0c5..889f6f23 100644
--- a/packages/libro-virtualized/package.json
+++ b/packages/libro-virtualized/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-virtualized",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro",
diff --git a/packages/libro-widget/CHANGELOG.md b/packages/libro-widget/CHANGELOG.md
index 158ee096..1995d1ec 100644
--- a/packages/libro-widget/CHANGELOG.md
+++ b/packages/libro-widget/CHANGELOG.md
@@ -1,5 +1,18 @@
 # @difizen/libro-widget
 
+## 0.3.49
+
+### Patch Changes
+
+- fix editor instance is undefined
+
+- Updated dependencies []:
+  - @difizen/libro-rendermime@0.3.49
+  - @difizen/libro-jupyter@0.3.49
+  - @difizen/libro-common@0.3.49
+  - @difizen/libro-kernel@0.3.49
+  - @difizen/libro-core@0.3.49
+
 ## 0.3.48
 
 ### Patch Changes
diff --git a/packages/libro-widget/package.json b/packages/libro-widget/package.json
index 572fe6b6..f9e07e2b 100644
--- a/packages/libro-widget/package.json
+++ b/packages/libro-widget/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@difizen/libro-widget",
-  "version": "0.3.48",
+  "version": "0.3.49",
   "description": "",
   "keywords": [
     "libro"
@@ -44,11 +44,11 @@
     "typecheck:tsc": "tsc --noEmit"
   },
   "dependencies": {
-    "@difizen/libro-core": "^0.3.48",
-    "@difizen/libro-common": "^0.3.48",
-    "@difizen/libro-kernel": "^0.3.48",
-    "@difizen/libro-rendermime": "^0.3.48",
-    "@difizen/libro-jupyter": "^0.3.48",
+    "@difizen/libro-core": "^0.3.49",
+    "@difizen/libro-common": "^0.3.49",
+    "@difizen/libro-kernel": "^0.3.49",
+    "@difizen/libro-rendermime": "^0.3.49",
+    "@difizen/libro-jupyter": "^0.3.49",
     "@difizen/mana-app": "latest"
   },
   "peerDependencies": {