diff --git a/change/@react-native-windows-automation-channel-c72c39e3-c579-4b51-b2aa-6fc7302f6bc4.json b/change/@react-native-windows-automation-channel-c72c39e3-c579-4b51-b2aa-6fc7302f6bc4.json
deleted file mode 100644
index 2a5071f1302..00000000000
--- a/change/@react-native-windows-automation-channel-c72c39e3-c579-4b51-b2aa-6fc7302f6bc4.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "type": "prerelease",
-  "comment": "Upgrade to Boost 1.84",
-  "packageName": "@react-native-windows/automation-channel",
-  "email": "julio.rocha@microsoft.com",
-  "dependentChangeType": "patch"
-}
diff --git a/change/react-native-windows-578517aa-d3ba-4901-a4f1-78366e66ee48.json b/change/react-native-windows-578517aa-d3ba-4901-a4f1-78366e66ee48.json
deleted file mode 100644
index dc679931a1d..00000000000
--- a/change/react-native-windows-578517aa-d3ba-4901-a4f1-78366e66ee48.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "type": "prerelease",
-  "comment": "Upgrade to Boost 1.84",
-  "packageName": "react-native-windows",
-  "email": "julio.rocha@microsoft.com",
-  "dependentChangeType": "patch"
-}
diff --git a/packages/@react-native-windows/automation-channel/CHANGELOG.json b/packages/@react-native-windows/automation-channel/CHANGELOG.json
index 42b98f9fe15..24e8a707940 100644
--- a/packages/@react-native-windows/automation-channel/CHANGELOG.json
+++ b/packages/@react-native-windows/automation-channel/CHANGELOG.json
@@ -1,6 +1,27 @@
 {
   "name": "@react-native-windows/automation-channel",
   "entries": [
+    {
+      "date": "Fri, 10 Apr 2026 06:33:07 GMT",
+      "version": "0.83.0-preview.3",
+      "tag": "@react-native-windows/automation-channel_v0.83.0-preview.3",
+      "comments": {
+        "prerelease": [
+          {
+            "author": "julio.rocha@microsoft.com",
+            "package": "@react-native-windows/automation-channel",
+            "commit": "a543e9117e9acfca0f055e8a4b169377b299b1b7",
+            "comment": "Upgrade to Boost 1.84"
+          },
+          {
+            "author": "beachball",
+            "package": "@react-native-windows/automation-channel",
+            "comment": "Bump react-native-windows to v0.83.0-preview.3",
+            "commit": "not available"
+          }
+        ]
+      }
+    },
     {
       "date": "Mon, 30 Mar 2026 23:06:11 GMT",
       "version": "0.83.0-preview.2",
diff --git a/packages/@react-native-windows/automation-channel/CHANGELOG.md b/packages/@react-native-windows/automation-channel/CHANGELOG.md
index 6e8254560b7..ad76d331156 100644
--- a/packages/@react-native-windows/automation-channel/CHANGELOG.md
+++ b/packages/@react-native-windows/automation-channel/CHANGELOG.md
@@ -1,9 +1,18 @@
 # Change Log - @react-native-windows/automation-channel
 
-<!-- This log was last generated on Mon, 30 Mar 2026 23:06:11 GMT and should not be manually modified. -->
+<!-- This log was last generated on Fri, 10 Apr 2026 06:33:07 GMT and should not be manually modified. -->
 
 <!-- Start content -->
 
+## 0.83.0-preview.3
+
+Fri, 10 Apr 2026 06:33:07 GMT
+
+### Changes
+
+- Upgrade to Boost 1.84 (julio.rocha@microsoft.com)
+- Bump react-native-windows to v0.83.0-preview.3
+
 ## 0.83.0-preview.2
 
 Mon, 30 Mar 2026 23:06:11 GMT
diff --git a/packages/@react-native-windows/automation-channel/package.json b/packages/@react-native-windows/automation-channel/package.json
index 4ea178f82a3..5a5c72733f4 100644
--- a/packages/@react-native-windows/automation-channel/package.json
+++ b/packages/@react-native-windows/automation-channel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native-windows/automation-channel",
-  "version": "0.83.0-preview.2",
+  "version": "0.83.0-preview.3",
   "license": "MIT",
   "repository": {
     "type": "git",
@@ -34,7 +34,7 @@
     "prettier": "2.8.8",
     "react": "19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2",
+    "react-native-windows": "0.83.0-preview.3",
     "typescript": "5.0.4"
   },
   "files": [
diff --git a/packages/@react-native-windows/automation-commands/CHANGELOG.json b/packages/@react-native-windows/automation-commands/CHANGELOG.json
index b5e170aab23..eafb54d2ff9 100644
--- a/packages/@react-native-windows/automation-commands/CHANGELOG.json
+++ b/packages/@react-native-windows/automation-commands/CHANGELOG.json
@@ -1,6 +1,21 @@
 {
   "name": "@react-native-windows/automation-commands",
   "entries": [
+    {
+      "date": "Fri, 10 Apr 2026 06:33:07 GMT",
+      "version": "0.83.0-preview.3",
+      "tag": "@react-native-windows/automation-commands_v0.83.0-preview.3",
+      "comments": {
+        "prerelease": [
+          {
+            "author": "beachball",
+            "package": "@react-native-windows/automation-commands",
+            "comment": "Bump @react-native-windows/automation-channel to v0.83.0-preview.3",
+            "commit": "not available"
+          }
+        ]
+      }
+    },
     {
       "date": "Mon, 30 Mar 2026 23:06:11 GMT",
       "version": "0.83.0-preview.2",
diff --git a/packages/@react-native-windows/automation-commands/CHANGELOG.md b/packages/@react-native-windows/automation-commands/CHANGELOG.md
index f6e6377e628..e14f67529bc 100644
--- a/packages/@react-native-windows/automation-commands/CHANGELOG.md
+++ b/packages/@react-native-windows/automation-commands/CHANGELOG.md
@@ -1,9 +1,17 @@
 # Change Log - @react-native-windows/automation-commands
 
-<!-- This log was last generated on Mon, 30 Mar 2026 23:06:11 GMT and should not be manually modified. -->
+<!-- This log was last generated on Fri, 10 Apr 2026 06:33:07 GMT and should not be manually modified. -->
 
 <!-- Start content -->
 
+## 0.83.0-preview.3
+
+Fri, 10 Apr 2026 06:33:07 GMT
+
+### Changes
+
+- Bump @react-native-windows/automation-channel to v0.83.0-preview.3
+
 ## 0.83.0-preview.2
 
 Mon, 30 Mar 2026 23:06:11 GMT
diff --git a/packages/@react-native-windows/automation-commands/package.json b/packages/@react-native-windows/automation-commands/package.json
index 6241448e55f..887047cec58 100644
--- a/packages/@react-native-windows/automation-commands/package.json
+++ b/packages/@react-native-windows/automation-commands/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native-windows/automation-commands",
-  "version": "0.83.0-preview.2",
+  "version": "0.83.0-preview.3",
   "description": "Allows controlling your react-native-windows application",
   "main": "lib-commonjs/index.js",
   "license": "MIT",
@@ -18,7 +18,7 @@
     "watch": "rnw-scripts watch"
   },
   "dependencies": {
-    "@react-native-windows/automation-channel": "0.83.0-preview.2",
+    "@react-native-windows/automation-channel": "0.83.0-preview.3",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1"
   },
diff --git a/packages/@react-native-windows/automation/CHANGELOG.json b/packages/@react-native-windows/automation/CHANGELOG.json
index c323214556f..9b62dd38600 100644
--- a/packages/@react-native-windows/automation/CHANGELOG.json
+++ b/packages/@react-native-windows/automation/CHANGELOG.json
@@ -1,6 +1,21 @@
 {
   "name": "@react-native-windows/automation",
   "entries": [
+    {
+      "date": "Fri, 10 Apr 2026 06:33:07 GMT",
+      "version": "0.83.0-preview.3",
+      "tag": "@react-native-windows/automation_v0.83.0-preview.3",
+      "comments": {
+        "prerelease": [
+          {
+            "author": "beachball",
+            "package": "@react-native-windows/automation",
+            "comment": "Bump @react-native-windows/automation-channel to v0.83.0-preview.3",
+            "commit": "not available"
+          }
+        ]
+      }
+    },
     {
       "date": "Mon, 30 Mar 2026 23:06:11 GMT",
       "version": "0.83.0-preview.2",
diff --git a/packages/@react-native-windows/automation/CHANGELOG.md b/packages/@react-native-windows/automation/CHANGELOG.md
index 28a1618d915..b841fe668a8 100644
--- a/packages/@react-native-windows/automation/CHANGELOG.md
+++ b/packages/@react-native-windows/automation/CHANGELOG.md
@@ -1,9 +1,17 @@
 # Change Log - @react-native-windows/automation
 
-<!-- This log was last generated on Mon, 30 Mar 2026 23:06:11 GMT and should not be manually modified. -->
+<!-- This log was last generated on Fri, 10 Apr 2026 06:33:07 GMT and should not be manually modified. -->
 
 <!-- Start content -->
 
+## 0.83.0-preview.3
+
+Fri, 10 Apr 2026 06:33:07 GMT
+
+### Changes
+
+- Bump @react-native-windows/automation-channel to v0.83.0-preview.3
+
 ## 0.83.0-preview.2
 
 Mon, 30 Mar 2026 23:06:11 GMT
diff --git a/packages/@react-native-windows/automation/package.json b/packages/@react-native-windows/automation/package.json
index 020fa804f19..8d40eb34bfa 100644
--- a/packages/@react-native-windows/automation/package.json
+++ b/packages/@react-native-windows/automation/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native-windows/automation",
-  "version": "0.83.0-preview.2",
+  "version": "0.83.0-preview.3",
   "description": "UI Automation Suite for React Native Windows Applications",
   "main": "lib-commonjs/index.js",
   "repository": {
@@ -18,7 +18,7 @@
     "watch": "rnw-scripts watch"
   },
   "dependencies": {
-    "@react-native-windows/automation-channel": "0.83.0-preview.2",
+    "@react-native-windows/automation-channel": "0.83.0-preview.3",
     "@react-native-windows/fs": "0.83.0-preview.1",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1",
diff --git a/packages/@react-native-windows/tester/package.json b/packages/@react-native-windows/tester/package.json
index 7396429a47f..b63f3f558f8 100644
--- a/packages/@react-native-windows/tester/package.json
+++ b/packages/@react-native-windows/tester/package.json
@@ -20,7 +20,7 @@
     "@react-native-picker/picker": "2.11.0",
     "react": "19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2",
+    "react-native-windows": "0.83.0-preview.3",
     "react-native-xaml": "^0.0.80"
   },
   "devDependencies": {
@@ -35,7 +35,7 @@
     "just-scripts": "^1.3.3",
     "react-native": "0.83.0-rc.5",
     "react-native-platform-override": "0.83.0-preview.1",
-    "react-native-windows": "0.83.0-preview.2",
+    "react-native-windows": "0.83.0-preview.3",
     "typescript": "5.0.4"
   },
   "engines": {
diff --git a/packages/debug-test/package.json b/packages/debug-test/package.json
index 6c74e10b8b8..9eebb68c50c 100644
--- a/packages/debug-test/package.json
+++ b/packages/debug-test/package.json
@@ -8,7 +8,7 @@
     "lint:fix": "rnw-scripts lint:fix"
   },
   "devDependencies": {
-    "@react-native-windows/automation": "0.83.0-preview.2",
+    "@react-native-windows/automation": "0.83.0-preview.3",
     "@react-native-windows/fs": "0.83.0-preview.1",
     "@rnw-scripts/eslint-config": "1.2.38",
     "@rnw-scripts/ts-config": "2.0.6",
diff --git a/packages/e2e-test-app-fabric/package.json b/packages/e2e-test-app-fabric/package.json
index c307d5d0075..2855e10ede0 100644
--- a/packages/e2e-test-app-fabric/package.json
+++ b/packages/e2e-test-app-fabric/package.json
@@ -22,14 +22,14 @@
     "perf:create": "node ../../vnext/Scripts/perf/create-perf-test.js"
   },
   "dependencies": {
-    "@react-native-windows/automation-channel": "0.83.0-preview.2",
+    "@react-native-windows/automation-channel": "0.83.0-preview.3",
     "@react-native-windows/tester": "0.0.1",
     "@types/react": "^19.2.0",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2"
+    "react-native-windows": "0.83.0-preview.3"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
@@ -38,8 +38,8 @@
     "@babel/preset-typescript": "^7.8.3",
     "@babel/runtime": "^7.20.0",
     "@react-native-community/cli": "20.0.0",
-    "@react-native-windows/automation": "0.83.0-preview.2",
-    "@react-native-windows/automation-commands": "0.83.0-preview.2",
+    "@react-native-windows/automation": "0.83.0-preview.3",
+    "@react-native-windows/automation-commands": "0.83.0-preview.3",
     "@react-native-windows/perf-testing": "0.83.0-preview.1",
     "@react-native/metro-config": "0.83.0-rc.5",
     "@rnw-scripts/babel-node-config": "2.3.3",
diff --git a/packages/playground/package.json b/packages/playground/package.json
index e78b20ad1a2..f016ef91f5a 100644
--- a/packages/playground/package.json
+++ b/packages/playground/package.json
@@ -16,7 +16,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2"
+    "react-native-windows": "0.83.0-preview.3"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
diff --git a/packages/sample-app-fabric/package.json b/packages/sample-app-fabric/package.json
index 7596912baa9..5d984469001 100644
--- a/packages/sample-app-fabric/package.json
+++ b/packages/sample-app-fabric/package.json
@@ -18,7 +18,7 @@
     "@typescript-eslint/parser": "^7.1.1",
     "react": "^19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2"
+    "react-native-windows": "0.83.0-preview.3"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
diff --git a/packages/sample-custom-component/package.json b/packages/sample-custom-component/package.json
index 89eef3070de..01b4b00083d 100644
--- a/packages/sample-custom-component/package.json
+++ b/packages/sample-custom-component/package.json
@@ -24,7 +24,7 @@
     "minimatch": "^10.0.3",
     "react": "^19.2.0",
     "react-native": "0.83.0-rc.5",
-    "react-native-windows": "0.83.0-preview.2"
+    "react-native-windows": "0.83.0-preview.3"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
diff --git a/vnext/CHANGELOG.json b/vnext/CHANGELOG.json
index 6cfac9553a2..3320fd1ec8f 100644
--- a/vnext/CHANGELOG.json
+++ b/vnext/CHANGELOG.json
@@ -1,6 +1,21 @@
 {
   "name": "react-native-windows",
   "entries": [
+    {
+      "date": "Fri, 10 Apr 2026 06:33:07 GMT",
+      "version": "0.83.0-preview.3",
+      "tag": "react-native-windows_v0.83.0-preview.3",
+      "comments": {
+        "prerelease": [
+          {
+            "author": "julio.rocha@microsoft.com",
+            "package": "react-native-windows",
+            "commit": "a543e9117e9acfca0f055e8a4b169377b299b1b7",
+            "comment": "Upgrade to Boost 1.84"
+          }
+        ]
+      }
+    },
     {
       "date": "Mon, 30 Mar 2026 23:06:11 GMT",
       "version": "0.83.0-preview.2",
diff --git a/vnext/CHANGELOG.md b/vnext/CHANGELOG.md
index 64120b5cf21..f7a83343969 100644
--- a/vnext/CHANGELOG.md
+++ b/vnext/CHANGELOG.md
@@ -1,9 +1,17 @@
 # Change Log - react-native-windows
 
-<!-- This log was last generated on Mon, 30 Mar 2026 23:06:11 GMT and should not be manually modified. -->
+<!-- This log was last generated on Fri, 10 Apr 2026 06:33:07 GMT and should not be manually modified. -->
 
 <!-- Start content -->
 
+## 0.83.0-preview.3
+
+Fri, 10 Apr 2026 06:33:07 GMT
+
+### Changes
+
+- Upgrade to Boost 1.84 (julio.rocha@microsoft.com)
+
 ## 0.83.0-preview.2
 
 Mon, 30 Mar 2026 23:06:11 GMT
diff --git a/vnext/PropertySheets/Generated/PackageVersion.g.props b/vnext/PropertySheets/Generated/PackageVersion.g.props
index d99f31c4a5b..1b2bece5e57 100644
--- a/vnext/PropertySheets/Generated/PackageVersion.g.props
+++ b/vnext/PropertySheets/Generated/PackageVersion.g.props
@@ -10,11 +10,11 @@
 -->
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
-    <ReactNativeWindowsVersion>0.83.0-preview.2</ReactNativeWindowsVersion>
+    <ReactNativeWindowsVersion>0.83.0-preview.3</ReactNativeWindowsVersion>
     <ReactNativeWindowsMajor>0</ReactNativeWindowsMajor>
     <ReactNativeWindowsMinor>83</ReactNativeWindowsMinor>
     <ReactNativeWindowsPatch>0</ReactNativeWindowsPatch>
     <ReactNativeWindowsCanary>false</ReactNativeWindowsCanary>
-    <ReactNativeWindowsCommitId>d89154d68c6b2f5f1a2355042d166f9dac8f1ba3</ReactNativeWindowsCommitId>
+    <ReactNativeWindowsCommitId>a543e9117e9acfca0f055e8a4b169377b299b1b7</ReactNativeWindowsCommitId>
   </PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/vnext/package.json b/vnext/package.json
index 66d33823fd4..3eb67964354 100644
--- a/vnext/package.json
+++ b/vnext/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-windows",
-  "version": "0.83.0-preview.2",
+  "version": "0.83.0-preview.3",
   "license": "MIT",
   "repository": {
     "type": "git",