diff --git a/CHANGELOG.md b/CHANGELOG.md
index c60f2317..f385bfbd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# [7.4.3]
+- Fixed a space input error on iPad.
+
+# [7.4.2]
+- Fix bug with keepStyleOnNewLine for link.
+
 # [7.4.1]
 - Fix toolbar dividers condition.
 
diff --git a/lib/src/models/documents/nodes/container.dart b/lib/src/models/documents/nodes/container.dart
index f868f43d..306d56bc 100644
--- a/lib/src/models/documents/nodes/container.dart
+++ b/lib/src/models/documents/nodes/container.dart
@@ -25,7 +25,7 @@ abstract class Container<T extends Node?> extends Node {
   int get childCount => _children.length;
 
   /// Returns the first child [Node].
-  Node get first => _children.first;
+  Node? get first => isEmpty ? null : _children.first;
 
   /// Returns the last child [Node].
   Node get last => _children.last;
diff --git a/lib/src/widgets/controller.dart b/lib/src/widgets/controller.dart
index 16e919e8..b4127ff5 100644
--- a/lib/src/widgets/controller.dart
+++ b/lib/src/widgets/controller.dart
@@ -400,8 +400,10 @@ class QuillController extends ChangeNotifier {
         extentOffset: math.min(selection.extentOffset, end));
     if (_keepStyleOnNewLine) {
       final style = getSelectionStyle();
-      final notInlineStyle = style.attributes.values.where((s) => !s.isInline);
-      toggledStyle = style.removeAll(notInlineStyle.toSet());
+      final ignoredStyles = style.attributes.values.where(
+        (s) => !s.isInline || s.key == Attribute.link.key,
+      );
+      toggledStyle = style.removeAll(ignoredStyles.toSet());
     } else {
       toggledStyle = Style();
     }
diff --git a/pubspec.yaml b/pubspec.yaml
index 9fda30c1..f304237f 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: flutter_quill
 description: A rich text editor built for the modern Android, iOS, web and desktop platforms. It is the WYSIWYG editor and a Quill component for Flutter.
-version: 7.4.1
+version: 7.4.3
 homepage: https://1o24bbs.com/c/bulletjournal/108
 repository: https://github.com/singerdmx/flutter-quill