diff --git a/README.md b/README.md
index f6e12ed7..11bdc79c 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,8 @@ You can inspect and modify views in iOS app via Lookin, just like UI Inspector i
 
 Official Website：https://lookin.work/
 
+Fork maintenance notes: [Imported Upstream Patches](UPSTREAM_PATCHES.md)
+
 # Integration Guide
 To use Lookin macOS app, you need to integrate LookinServer (iOS Framework of Lookin) into your iOS project.
 
diff --git a/Src/Main/Server/Connection/LKS_ConnectionManager.m b/Src/Main/Server/Connection/LKS_ConnectionManager.m
index c1ec8fc1..bcc2dbc5 100644
--- a/Src/Main/Server/Connection/LKS_ConnectionManager.m
+++ b/Src/Main/Server/Connection/LKS_ConnectionManager.m
@@ -1,4 +1,4 @@
-#ifdef SHOULD_COMPILE_LOOKIN_SERVER 
+#ifdef SHOULD_COMPILE_LOOKIN_SERVER
 
 //
 //  LookinServer.m
@@ -39,6 +39,10 @@ + (instancetype)sharedInstance {
 }
 
 + (void)load {
+    if (NSProcessInfo.processInfo.environment[@"XCODE_RUNNING_FOR_PREVIEWS"]) {
+        return;
+    }
+
     // 触发 init 方法
     [LKS_ConnectionManager sharedInstance];
 }
diff --git a/Src/Main/Server/Others/LKS_ExportManager.m b/Src/Main/Server/Others/LKS_ExportManager.m
index be040b9c..9c6cc0ff 100644
--- a/Src/Main/Server/Others/LKS_ExportManager.m
+++ b/Src/Main/Server/Others/LKS_ExportManager.m
@@ -95,7 +95,7 @@ @interface LKS_ExportManager ()
 @property(nonatomic, strong) UIDocumentInteractionController *documentController;
 #endif
 
-@property(nonatomic, strong) LKS_ExportManagerMaskView *maskView;
+@property(nonatomic, strong) LKS_ExportManagerMaskView *lks_maskView;
 
 @end
 
@@ -129,11 +129,11 @@ - (void)exportAndShare {
     
     [[NSNotificationCenter defaultCenter] postNotificationName:@"Lookin_WillExport" object:nil];
     
-    if (!self.maskView) {
-        self.maskView = [LKS_ExportManagerMaskView new];
+    if (!self.lks_maskView) {
+        self.lks_maskView = [LKS_ExportManagerMaskView new];
     }
-    [visibleVc.view.window addSubview:self.maskView];
-    self.maskView.frame = visibleVc.view.window.bounds;
+    [visibleVc.view.window addSubview:self.lks_maskView];
+    self.lks_maskView.frame = visibleVc.view.window.bounds;
 
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
         LookinHierarchyInfo *info = [LookinHierarchyInfo exportedInfo];
@@ -165,7 +165,7 @@ - (void)exportAndShare {
         NSString *path = [NSString stringWithFormat:@"%@%@", NSTemporaryDirectory(), fileName];
         [data writeToFile:path atomically:YES];
         
-        [self.maskView removeFromSuperview];
+        [self.lks_maskView removeFromSuperview];
         
         if (!self.documentController) {
             self.documentController = [UIDocumentInteractionController new];
diff --git a/Src/Main/Shared/Peertalk/Lookin_PTProtocol.m b/Src/Main/Shared/Peertalk/Lookin_PTProtocol.m
index 72e85f8a..d18ca125 100644
--- a/Src/Main/Shared/Peertalk/Lookin_PTProtocol.m
+++ b/Src/Main/Shared/Peertalk/Lookin_PTProtocol.m
@@ -246,7 +246,7 @@ - (void)readPayloadOfSize:(size_t)payloadSize overChannel:(dispatch_io_t)channel
   __block dispatch_data_t allData = NULL;
   dispatch_io_read(channel, 0, payloadSize, queue_, ^(bool done, dispatch_data_t data, int error) {
     //NSLog(@"dispatch_io_read: done=%d data=%p error=%d", done, data, error);
-    size_t dataSize = dispatch_data_get_size(data);
+    size_t dataSize = data ? dispatch_data_get_size(data) : 0;
     
     if (dataSize) {
       if (!allData) {
diff --git a/UPSTREAM_PATCHES.md b/UPSTREAM_PATCHES.md
new file mode 100644
index 00000000..870dbb79
--- /dev/null
+++ b/UPSTREAM_PATCHES.md
@@ -0,0 +1,11 @@
+# Imported Upstream Patches
+
+This fork incorporates selected community pull requests that were not merged by the original project. Imported commits preserve the original author whenever possible. A listed pull request remains unmerged upstream unless its status is updated here.
+
+| Local commit | Upstream pull request | Original commit | Local adaptation |
+| --- | --- | --- | --- |
+| `ee11b92` | [QMUI/LookinServer#159](https://github.com/QMUI/LookinServer/pull/159) | `6db2bb1858865255f7fa6c5424d08b509a4b9190` | None. Renames the export overlay property to avoid the iOS 18 `maskView` collision. |
+| `d9f34d9` | [QMUI/LookinServer#165](https://github.com/QMUI/LookinServer/pull/165) | `2377dc6cb63be48bc6aef825110e35e8a86bb9ec` | Uses an early return when running inside SwiftUI Previews. |
+| `7929384` | [QMUI/LookinServer#173](https://github.com/QMUI/LookinServer/pull/173) | `cb1f9baeda8c294c758a0a131a63283efe103e8a` | Treats a null dispatch payload as zero bytes so the existing completion and error paths still run. |
+
+Large or cross-repository features are ported on dedicated branches instead of being applied directly. Every imported patch must build against the fork's current default branch before it is merged.