diff --git a/.changeset/curvy-seals-attack.md b/.changeset/curvy-seals-attack.md
new file mode 100644
index 0000000000..aa574f471b
--- /dev/null
+++ b/.changeset/curvy-seals-attack.md
@@ -0,0 +1,5 @@
+---
+'slate-react': patch
+---
+
+fix: sync built-in state on undo when editor is unfocused
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f421f8a537..549b4d2fcb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,8 @@ permissions:
 jobs:
   ci:
     name: ${{ matrix.command }}
-    runs-on: ubuntu-latest
+    # Pin the version to avoid dependency installation issues
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         command:
diff --git a/docs/libraries/slate-history/history-editor.md b/docs/libraries/slate-history/history-editor.md
index 425f76f4f3..304931b9c0 100644
--- a/docs/libraries/slate-history/history-editor.md
+++ b/docs/libraries/slate-history/history-editor.md
@@ -39,6 +39,11 @@ Undo to the previous saved state.
 
 ### Merging and Saving
 
+#### `HistoryEditor.withMerging(editor: HistoryEditor, fn: () => void): void`
+
+Apply a series of changes inside a synchronous `fn`, These operations will
+be merged into the previous history.
+
 #### `HistoryEditor.withoutMerging(editor: HistoryEditor, fn: () => void): void`
 
 Apply a series of changes inside a synchronous `fn`, without merging any of
diff --git a/package.json b/package.json
index ba65c15db0..69b34f32a0 100644
--- a/package.json
+++ b/package.json
@@ -31,8 +31,8 @@
     "test": "yarn run test:mocha && yarn run test:jest",
     "test:custom": "mocha --require ./config/babel/register.cjs ./packages/slate/test/index.js",
     "test:inspect": "yarn test --inspect-brk",
-    "test:integration": "playwright install && run-p -r serve playwright",
-    "test:integration-local": "run-p -r serve playwright",
+    "test:integration": "playwright install --with-deps && run-p -r serve playwright",
+    "test:integration-local": "playwright install && run-p -r serve playwright",
     "test:mocha": "mocha --require ./config/babel/register.cjs ./packages/{slate,slate-history,slate-hyperscript}/test/**/*.{js,ts}",
     "test:jest": "jest --config jest.config.js",
     "tsc:examples": "tsc --project ./site/tsconfig.example.json",
diff --git a/packages/slate-react/src/components/editable.tsx b/packages/slate-react/src/components/editable.tsx
index f1945d53ae..98ee43887a 100644
--- a/packages/slate-react/src/components/editable.tsx
+++ b/packages/slate-react/src/components/editable.tsx
@@ -1042,8 +1042,31 @@ export const Editable = forwardRef(
                       op()
                     }
                     deferredOperations.current = []
+
+                    // COMPAT: Since `beforeinput` doesn't fully `preventDefault`,
+                    // there's a chance that content might be placed in the browser's undo stack.
+                    // This means undo can be triggered even when the div is not focused,
+                    // and it only triggers the input event for the node. (2024/10/09)
+                    if (!ReactEditor.isFocused(editor)) {
+                      const native = event.nativeEvent as InputEvent
+                      const maybeHistoryEditor: any = editor
+                      if (
+                        native.inputType === 'historyUndo' &&
+                        typeof maybeHistoryEditor.undo === 'function'
+                      ) {
+                        maybeHistoryEditor.undo()
+                        return
+                      }
+                      if (
+                        native.inputType === 'historyRedo' &&
+                        typeof maybeHistoryEditor.redo === 'function'
+                      ) {
+                        maybeHistoryEditor.redo()
+                        return
+                      }
+                    }
                   },
-                  [attributes.onInput]
+                  [attributes.onInput, editor]
                 )}
                 onBlur={useCallback(
                   (event: React.FocusEvent<HTMLDivElement>) => {