diff --git a/dist/cascader/index.js b/dist/cascader/index.js
index 03680f59..0bc2b269 100644
--- a/dist/cascader/index.js
+++ b/dist/cascader/index.js
@@ -148,6 +148,7 @@ VantComponent({
                         selected: null,
                     },
                 ],
+                activeTab: 0,
             });
         },
         onClose() {
diff --git a/dist/definitions/index.d.ts b/dist/definitions/index.d.ts
index d0554f62..c90321fb 100644
--- a/dist/definitions/index.d.ts
+++ b/dist/definitions/index.d.ts
@@ -4,6 +4,7 @@ interface VantComponentInstance {
     children: WechatMiniprogram.Component.TrivialInstance[];
     index: number;
     $emit: (name: string, detail?: unknown, options?: WechatMiniprogram.Component.TriggerEventOption) => void;
+    setView: (value: Record<string, any>, callback?: () => void) => void;
 }
 export type VantComponentOptions<Data extends WechatMiniprogram.Component.DataOption, Props extends WechatMiniprogram.Component.PropertyOption, Methods extends WechatMiniprogram.Component.MethodOption> = {
     data?: Data;
diff --git a/dist/field/index.js b/dist/field/index.js
index 5b07135e..76522c8d 100644
--- a/dist/field/index.js
+++ b/dist/field/index.js
@@ -31,6 +31,18 @@ VantComponent({
         innerValue: '',
         showClear: false,
     },
+    watch: {
+        value(value) {
+            if (value !== this.value) {
+                this.setData({ innerValue: value });
+                this.value = value;
+                this.setShowClear();
+            }
+        },
+        clearTrigger() {
+            this.setShowClear();
+        },
+    },
     created() {
         this.value = this.data.value;
         this.setData({ innerValue: this.value });
@@ -119,7 +131,7 @@ VantComponent({
                 const trigger = clearTrigger === 'always' || (clearTrigger === 'focus' && focused);
                 showClear = hasValue && trigger;
             }
-            this.setData({ showClear });
+            this.setView({ showClear });
         },
         noop() { },
     },
diff --git a/dist/field/props.js b/dist/field/props.js
index ae405b31..ba3e0a71 100644
--- a/dist/field/props.js
+++ b/dist/field/props.js
@@ -1,13 +1,5 @@
 export const commonProps = {
-    value: {
-        type: String,
-        observer(value) {
-            if (value !== this.value) {
-                this.setData({ innerValue: value });
-                this.value = value;
-            }
-        },
-    },
+    value: String,
     placeholder: String,
     placeholderStyle: String,
     placeholderClass: String,
diff --git a/dist/mixins/basic.js b/dist/mixins/basic.js
index 617cc070..62da6f97 100644
--- a/dist/mixins/basic.js
+++ b/dist/mixins/basic.js
@@ -7,5 +7,20 @@ export const basic = Behavior({
             this.setData(data);
             return new Promise((resolve) => wx.nextTick(resolve));
         },
+        // high performance setData
+        setView(data, callback) {
+            const target = {};
+            let hasChange = false;
+            Object.keys(data).forEach((key) => {
+                if (data[key] !== this.data[key]) {
+                    target[key] = data[key];
+                    hasChange = true;
+                }
+            });
+            if (hasChange) {
+                return this.setData(target, callback);
+            }
+            return callback && callback();
+        },
     },
 });
diff --git a/dist/uploader/index.js b/dist/uploader/index.js
index 5379c1ba..93a4962b 100644
--- a/dist/uploader/index.js
+++ b/dist/uploader/index.js
@@ -1,7 +1,7 @@
 import { VantComponent } from '../common/component';
-import { isImageFile, chooseFile, isVideoFile } from './utils';
-import { imageProps, videoProps, mediaProps, messageFileProps } from './shared';
 import { isBoolean, isPromise } from '../common/validator';
+import { imageProps, mediaProps, messageFileProps, videoProps } from './shared';
+import { chooseFile, isImageFile, isVideoFile } from './utils';
 VantComponent({
     props: Object.assign(Object.assign(Object.assign(Object.assign({ disabled: Boolean, multiple: Boolean, uploadText: String, useBeforeRead: Boolean, afterRead: null, beforeRead: null, previewSize: {
             type: null,
diff --git a/dist/uploader/index.wxml b/dist/uploader/index.wxml
index 3e61fd9f..2276fbf4 100644
--- a/dist/uploader/index.wxml
+++ b/dist/uploader/index.wxml
@@ -29,6 +29,7 @@
         poster="{{ item.thumb }}"
         autoplay="{{ item.autoplay }}"
         object-fit="{{videoFit}}"
+        referrer-policy="{{videoReferrerPolicy}}"
         class="van-uploader__preview-image"
         style="{{ computed.sizeStyle({ previewSize }) }}"
         data-index="{{ index }}"
diff --git a/dist/uploader/shared.d.ts b/dist/uploader/shared.d.ts
index e0a0d7e3..77b45415 100644
--- a/dist/uploader/shared.d.ts
+++ b/dist/uploader/shared.d.ts
@@ -29,6 +29,10 @@ export declare const videoProps: {
         type: StringConstructor;
         value: string;
     };
+    referrerPolicy: {
+        type: StringConstructor;
+        value: string;
+    };
 };
 export declare const mediaProps: {
     capture: {
diff --git a/dist/uploader/shared.js b/dist/uploader/shared.js
index c481c23a..312fea4e 100644
--- a/dist/uploader/shared.js
+++ b/dist/uploader/shared.js
@@ -31,6 +31,10 @@ export const videoProps = {
         type: String,
         value: 'back',
     },
+    referrerPolicy: {
+        type: String,
+        value: 'no-referrer',
+    },
 };
 // props for media
 export const mediaProps = {
diff --git a/example/project.config.json b/example/project.config.json
index 3db8cd77..d9384d95 100644
--- a/example/project.config.json
+++ b/example/project.config.json
@@ -42,7 +42,7 @@
     "condition": false
   },
   "compileType": "miniprogram",
-  "libVersion": "2.6.5",
+  "libVersion": "2.27.3",
   "appid": "wx1c01b35002d3ba14",
   "projectname": "vant-weapp",
   "condition": {
diff --git a/lib/cascader/index.js b/lib/cascader/index.js
index 1b45831b..f7c239c4 100644
--- a/lib/cascader/index.js
+++ b/lib/cascader/index.js
@@ -161,6 +161,7 @@ var defaultFieldNames = {
                         selected: null,
                     },
                 ],
+                activeTab: 0,
             });
         },
         onClose: function () {
diff --git a/lib/definitions/index.d.ts b/lib/definitions/index.d.ts
index d0554f62..c90321fb 100644
--- a/lib/definitions/index.d.ts
+++ b/lib/definitions/index.d.ts
@@ -4,6 +4,7 @@ interface VantComponentInstance {
     children: WechatMiniprogram.Component.TrivialInstance[];
     index: number;
     $emit: (name: string, detail?: unknown, options?: WechatMiniprogram.Component.TriggerEventOption) => void;
+    setView: (value: Record<string, any>, callback?: () => void) => void;
 }
 export type VantComponentOptions<Data extends WechatMiniprogram.Component.DataOption, Props extends WechatMiniprogram.Component.PropertyOption, Methods extends WechatMiniprogram.Component.MethodOption> = {
     data?: Data;
diff --git a/lib/field/index.js b/lib/field/index.js
index 4fff56ae..ee64d5f1 100644
--- a/lib/field/index.js
+++ b/lib/field/index.js
@@ -44,6 +44,18 @@ var props_1 = require("./props");
         innerValue: '',
         showClear: false,
     },
+    watch: {
+        value: function (value) {
+            if (value !== this.value) {
+                this.setData({ innerValue: value });
+                this.value = value;
+                this.setShowClear();
+            }
+        },
+        clearTrigger: function () {
+            this.setShowClear();
+        },
+    },
     created: function () {
         this.value = this.data.value;
         this.setData({ innerValue: this.value });
@@ -133,7 +145,7 @@ var props_1 = require("./props");
                 var trigger = clearTrigger === 'always' || (clearTrigger === 'focus' && focused);
                 showClear = hasValue && trigger;
             }
-            this.setData({ showClear: showClear });
+            this.setView({ showClear: showClear });
         },
         noop: function () { },
     },
diff --git a/lib/field/props.js b/lib/field/props.js
index 3cb8dca7..5ec647b2 100644
--- a/lib/field/props.js
+++ b/lib/field/props.js
@@ -2,15 +2,7 @@
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.textareaProps = exports.inputProps = exports.commonProps = void 0;
 exports.commonProps = {
-    value: {
-        type: String,
-        observer: function (value) {
-            if (value !== this.value) {
-                this.setData({ innerValue: value });
-                this.value = value;
-            }
-        },
-    },
+    value: String,
     placeholder: String,
     placeholderStyle: String,
     placeholderClass: String,
diff --git a/lib/mixins/basic.js b/lib/mixins/basic.js
index 4373ad44..405161a2 100644
--- a/lib/mixins/basic.js
+++ b/lib/mixins/basic.js
@@ -10,5 +10,21 @@ exports.basic = Behavior({
             this.setData(data);
             return new Promise(function (resolve) { return wx.nextTick(resolve); });
         },
+        // high performance setData
+        setView: function (data, callback) {
+            var _this = this;
+            var target = {};
+            var hasChange = false;
+            Object.keys(data).forEach(function (key) {
+                if (data[key] !== _this.data[key]) {
+                    target[key] = data[key];
+                    hasChange = true;
+                }
+            });
+            if (hasChange) {
+                return this.setData(target, callback);
+            }
+            return callback && callback();
+        },
     },
 });
diff --git a/lib/uploader/index.js b/lib/uploader/index.js
index 5492d408..7842d9b6 100644
--- a/lib/uploader/index.js
+++ b/lib/uploader/index.js
@@ -12,9 +12,9 @@ var __assign = (this && this.__assign) || function () {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 var component_1 = require("../common/component");
-var utils_1 = require("./utils");
-var shared_1 = require("./shared");
 var validator_1 = require("../common/validator");
+var shared_1 = require("./shared");
+var utils_1 = require("./utils");
 (0, component_1.VantComponent)({
     props: __assign(__assign(__assign(__assign({ disabled: Boolean, multiple: Boolean, uploadText: String, useBeforeRead: Boolean, afterRead: null, beforeRead: null, previewSize: {
             type: null,
diff --git a/lib/uploader/index.wxml b/lib/uploader/index.wxml
index 3e61fd9f..2276fbf4 100644
--- a/lib/uploader/index.wxml
+++ b/lib/uploader/index.wxml
@@ -29,6 +29,7 @@
         poster="{{ item.thumb }}"
         autoplay="{{ item.autoplay }}"
         object-fit="{{videoFit}}"
+        referrer-policy="{{videoReferrerPolicy}}"
         class="van-uploader__preview-image"
         style="{{ computed.sizeStyle({ previewSize }) }}"
         data-index="{{ index }}"
diff --git a/lib/uploader/shared.d.ts b/lib/uploader/shared.d.ts
index e0a0d7e3..77b45415 100644
--- a/lib/uploader/shared.d.ts
+++ b/lib/uploader/shared.d.ts
@@ -29,6 +29,10 @@ export declare const videoProps: {
         type: StringConstructor;
         value: string;
     };
+    referrerPolicy: {
+        type: StringConstructor;
+        value: string;
+    };
 };
 export declare const mediaProps: {
     capture: {
diff --git a/lib/uploader/shared.js b/lib/uploader/shared.js
index b88fea74..67f32637 100644
--- a/lib/uploader/shared.js
+++ b/lib/uploader/shared.js
@@ -34,6 +34,10 @@ exports.videoProps = {
         type: String,
         value: 'back',
     },
+    referrerPolicy: {
+        type: String,
+        value: 'no-referrer',
+    },
 };
 // props for media
 exports.mediaProps = {