diff --git a/CLAUDE.md b/CLAUDE.md
index f68c3912a..36d356257 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -156,7 +156,7 @@ Key targets defined in `Directory.Build.targets`:
 | `BuildAndroidSDK`    | Builds Android SDK via Gradle           |
 | `BuildLinuxSDK`      | Builds Linux SDK via CMake              |
 | `BuildWindowsSDK`    | Builds Windows SDK via CMake (Crashpad) |
-| `BuildCocoaSDK`      | Downloads iOS/macOS SDKs from releases  |
+| `BuildCocoaSDK`      | Builds iOS/macOS SDKs via Xcode         |
 | `UnityEditModeTest`  | Runs edit-mode unit tests               |
 | `UnityPlayModeTest`  | Runs play-mode tests                    |
 
@@ -320,6 +320,18 @@ modules/
 └── sentry-cocoa/   # iOS/macOS (prebuilt XCFramework)
 ```
 
+### Local Android NDK Development
+
+When iterating on `modules/sentry-native/ndk` together with `modules/sentry-java`, publish the local NDK build to `~/.m2` so sentry-java picks it up instead of mavenCentral:
+
+```bash
+pwsh scripts/build-native-ndk-local.ps1                       # publish only
+pwsh scripts/build-native-ndk-local.ps1 -BuildJava            # publish + rebuild :sentry-android-ndk
+pwsh scripts/build-native-ndk-local.ps1 -PurgeCache -BuildJava  # first switch from central, or after stale builds
+```
+
+Prerequisite: `mavenLocal()` must precede `mavenCentral()` in `modules/sentry-java/settings.gradle.kts` (`dependencyResolutionManagement` block). The script aborts otherwise.
+
 ### Key Source Files
 
 **Android (`src/Sentry.Unity.Android/`):**
diff --git a/Directory.Build.targets b/Directory.Build.targets
index 8f6613858..49fe224c5 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -117,33 +117,57 @@
     <Exec Command="pwsh &quot;$(RepoRoot)scripts/download-sentry-cli.ps1&quot;"></Exec>
   </Target>
 
-  <!-- Build the Cocoa SDK: dotnet msbuild /t:BuildCocoaSDK src/Sentry.Unity -->
-  <!-- Builds the sentry-cocoa submodule from source and extracts iOS and macOS artifacts -->
+  <!--
+    Build the Cocoa SDK:
+        dotnet msbuild /t:BuildCocoaSDK src/Sentry.Unity
+    Force a clean rebuild (bypass the "xcframework already built" short-circuit and
+    wipe the sentry-cocoa XCFrameworkBuildPath/ cache before building):
+        dotnet msbuild /t:BuildCocoaSDK src/Sentry.Unity -p:RebuildCocoaSdk=true
+    Builds the sentry-cocoa submodule from source and replaces the iOS xcframework
+    and macOS dylib in package-dev/Plugins/.
+  -->
   <Target Name="BuildCocoaSDK"
       Condition="!$([MSBuild]::IsOSPlatform('Windows')) AND '$(MSBuildProjectName)' == 'Sentry.Unity'
-        And (!Exists('$(SentryiOSArtifactsDestination)') Or !Exists('$(SentrymacOSArtifactsDestination)Sentry.dylib'))"
+        And ('$(RebuildCocoaSdk)' == 'true' Or !Exists('$(SentryiOSArtifactsDestination)') Or !Exists('$(SentrymacOSArtifactsDestination)Sentry.dylib'))"
       BeforeTargets="BeforeBuild">
 
     <Error Condition="!Exists('$(SentryCocoaRoot)Sentry.xcodeproj')" Text="sentry-cocoa submodule not checked out at $(SentryCocoaRoot). Run: git submodule update --init modules/sentry-cocoa" />
 
     <Message Importance="High" Text="Building Cocoa SDK from submodule." />
 
-    <Exec Command="pwsh &quot;$(RepoRoot)scripts/build-cocoa-sdk.ps1&quot; -CocoaRoot &quot;$(SentryCocoaRoot)&quot; -iOSDestination &quot;$(SentryiOSArtifactsDestination)&quot; -macOSDestination &quot;$(SentrymacOSArtifactsDestination)Sentry.dylib&quot;" />
+    <PropertyGroup>
+      <BuildCocoaSdkScriptArgs Condition="'$(RebuildCocoaSdk)' == 'true'">-Clean</BuildCocoaSdkScriptArgs>
+    </PropertyGroup>
+
+    <Exec Command="pwsh &quot;$(RepoRoot)scripts/build-cocoa-sdk.ps1&quot; -CocoaRoot &quot;$(SentryCocoaRoot)&quot; -iOSDestination &quot;$(SentryiOSArtifactsDestination)&quot; -macOSDestination &quot;$(SentrymacOSArtifactsDestination)Sentry.dylib&quot; $(BuildCocoaSdkScriptArgs)" />
 
     <Error Condition="(!Exists('$(SentryiOSArtifactsDestination)'))" Text="Failed to set up the iOS SDK." />
     <Error Condition="(!Exists('$(SentrymacOSArtifactsDestination)Sentry.dylib') Or !Exists('$(SentrymacOSArtifactsDestination)Sentry.dylib.dSYM'))" Text="Failed to set up the macOS SDK." />
   </Target>
 
-  <!-- Build the Android SDK: dotnet msbuild /t:BuildAndroidSDK src/Sentry.Unity -->
+  <!--
+    Build the Android SDK:
+        dotnet msbuild /t:BuildAndroidSDK src/Sentry.Unity
+    Force a clean rebuild (bypass the "Sentry~/ already has 4 files" short-circuit).
+    Also republishes sentry-native-ndk to mavenLocal so sentry-java consumes the
+    locally-built NDK instead of the mavenCentral release:
+        dotnet msbuild /t:BuildAndroidSDK src/Sentry.Unity -p:RebuildAndroidSdk=true
+  -->
   <Target Name="BuildAndroidSDK"
           DependsOnTargets="DownloadCLI"
-          Condition="'$(MSBuildProjectName)' == 'Sentry.Unity' And (!Exists('$(SentryAndroidArtifactsDestination)') Or (Exists('$(SentryAndroidArtifactsDestination)') And $([System.IO.Directory]::GetFiles('$(SentryAndroidArtifactsDestination)').Length) != 4))"
+          Condition="'$(MSBuildProjectName)' == 'Sentry.Unity' And ('$(RebuildAndroidSdk)' == 'true' Or !Exists('$(SentryAndroidArtifactsDestination)') Or (Exists('$(SentryAndroidArtifactsDestination)') And $([System.IO.Directory]::GetFiles('$(SentryAndroidArtifactsDestination)').Length) != 4))"
           BeforeTargets="BeforeBuild">
     <Error Condition="!Exists('$(SentryAndroidRoot)')" Text="Couldn't find the Android root at $(SentryAndroidRoot)." />
 
     <!-- Clean incomplete artifacts directory before building -->
     <RemoveDir Directories="$(SentryAndroidArtifactsDestination)" Condition="Exists('$(SentryAndroidArtifactsDestination)')" ContinueOnError="true" />
 
+    <!-- When forcing a rebuild, also publish a fresh sentry-native-ndk to mavenLocal so
+         sentry-java's :sentry-android-ndk resolves it locally. The same local AAR is also
+         copied over the bundled sentry-native-ndk-release.aar below, keeping the Java/Kotlin
+         and native sides in sync. -->
+    <CallTarget Condition="'$(RebuildAndroidSdk)' == 'true'" Targets="PublishNativeNdkLocal" />
+
     <Message Importance="High" Text="Building Sentry Android SDK." />
 
     <!-- IgnoreExitCode: Gradle may report BUILD SUCCESSFUL yet the JVM exits with code -1 due to
@@ -169,41 +193,81 @@
 
     <Copy SourceFiles="@(AndroidJarArtifacts)" DestinationFiles="$(SentryAndroidArtifactsDestination)sentry.jar" />
 
-    <Message Importance="High" Text="Reading the sentry-native-ndk version from the 'libs.versions.toml' file." />
-
     <PropertyGroup>
+      <SentryNativeNdkLocalAar>$(SentryNativeRoot)ndk/lib/build/outputs/aar/sentry-native-ndk-release.aar</SentryNativeNdkLocalAar>
+    </PropertyGroup>
+
+    <!-- Prefer the locally-built sentry-native-ndk AAR when present
+         (see scripts/build-native-ndk-local.ps1). Falls back to the
+         released artifact below when no local build exists. -->
+    <Message Condition="Exists('$(SentryNativeNdkLocalAar)')" Importance="High" Text="Using locally-built sentry-native-ndk AAR from '$(SentryNativeNdkLocalAar)'." />
+    <Copy Condition="Exists('$(SentryNativeNdkLocalAar)')" SourceFiles="$(SentryNativeNdkLocalAar)" DestinationFiles="$(SentryAndroidArtifactsDestination)sentry-native-ndk-release.aar" />
+
+    <Message Condition="!Exists('$(SentryNativeNdkLocalAar)')" Importance="High" Text="Reading the sentry-native-ndk version from the 'libs.versions.toml' file." />
+
+    <PropertyGroup Condition="!Exists('$(SentryNativeNdkLocalAar)')">
         <PropertiesContent>$([System.IO.File]::ReadAllText("$(RepoRoot)modules/sentry-java/gradle/libs.versions.toml"))</PropertiesContent>
         <NativeVersion>$([System.Text.RegularExpressions.Regex]::Match($(PropertiesContent), 'sentry-native-ndk\s*=\s*\{[^}]*version\s*=\s*"([^"]+)"').Groups[1].Value)</NativeVersion>
     </PropertyGroup>
 
     <!-- Clean cache if version does not exist to get rid of old versions -->
     <RemoveDir
-      Condition="!Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip')"
+      Condition="!Exists('$(SentryNativeNdkLocalAar)') And !Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip')"
       Directories="$(SentryNativeNdkCache)" />
 
     <!-- Create cache directory -->
-    <MakeDir Condition="!Exists('$(SentryNativeNdkCache)')" Directories="$(SentryNativeNdkCache)" />
+    <MakeDir Condition="!Exists('$(SentryNativeNdkLocalAar)') And !Exists('$(SentryNativeNdkCache)')" Directories="$(SentryNativeNdkCache)" />
 
-    <Message Importance="High" Text="Downloading sentry-native-ndk version '$(NativeVersion)'." />
+    <Message Condition="!Exists('$(SentryNativeNdkLocalAar)')" Importance="High" Text="Downloading sentry-native-ndk version '$(NativeVersion)'." />
 
     <!-- Download prebuilt sentry-native-ndk -->
     <Exec
-      Condition="!Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip')"
+      Condition="!Exists('$(SentryNativeNdkLocalAar)') And !Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip')"
       Command="curl -L https://github.com/getsentry/sentry-native/releases/download/$(NativeVersion)/sentry-native-ndk-$(NativeVersion).zip -o &quot;$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip&quot;" />
 
     <Exec
-      Condition="!Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion)')"
+      Condition="!Exists('$(SentryNativeNdkLocalAar)') And !Exists('$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion)')"
       Command="pwsh -Command &quot;Expand-Archive -Path '$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion).zip' -DestinationPath '$(SentryNativeNdkCache)' -Force&quot;" />
 
-    <Copy SourceFiles="$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion)/sentry-native-ndk-release.aar" DestinationFiles="$(SentryAndroidArtifactsDestination)sentry-native-ndk-release.aar" />
+    <Copy Condition="!Exists('$(SentryNativeNdkLocalAar)')" SourceFiles="$(SentryNativeNdkCache)sentry-native-ndk-$(NativeVersion)/sentry-native-ndk-release.aar" DestinationFiles="$(SentryAndroidArtifactsDestination)sentry-native-ndk-release.aar" />
 
     <Error Condition="!Exists('$(SentryAndroidArtifactsDestination)')" Text="Failed to build the Android SDK." />
   </Target>
 
-  <!-- Build the Sentry Native SDK for Windows: dotnet msbuild /t:BuildWindowsSDK src/Sentry.Unity -->
+  <!--
+    Build sentry-native-ndk and publish it to the local Maven repo (~/.m2)
+    so sentry-java's :sentry-android-ndk build consumes the local artifact
+    instead of mavenCentral. Requires mavenLocal() to be listed before
+    mavenCentral() in modules/sentry-java/settings.gradle.kts (the script
+    verifies this and aborts otherwise).
+
+        dotnet msbuild /t:PublishNativeNdkLocal src/Sentry.Unity
+
+    Purge stale Gradle caches before publishing (use the first time you
+    switch from mavenCentral or when the consumed artifact looks stale):
+        dotnet msbuild /t:PublishNativeNdkLocal src/Sentry.Unity -p:PurgeNdkCache=true
+  -->
+  <Target Name="PublishNativeNdkLocal" Condition="'$(MSBuildProjectName)' == 'Sentry.Unity'">
+    <Error Condition="!Exists('$(SentryNativeRoot)ndk')" Text="Couldn't find sentry-native NDK module at $(SentryNativeRoot)ndk. Run: git submodule update --init modules/sentry-native" />
+
+    <PropertyGroup>
+      <PublishNativeNdkScriptArgs Condition="'$(PurgeNdkCache)' == 'true'">-PurgeCache</PublishNativeNdkScriptArgs>
+    </PropertyGroup>
+
+    <Message Importance="High" Text="Publishing sentry-native-ndk to mavenLocal." />
+
+    <Exec Command="pwsh &quot;$(RepoRoot)scripts/build-native-ndk-local.ps1&quot; $(PublishNativeNdkScriptArgs)" />
+  </Target>
+
+  <!--
+    Build the Sentry Native SDK for Windows:
+        dotnet msbuild /t:BuildWindowsSDK src/Sentry.Unity
+    Force a clean rebuild (bypass the "sentry.dll already exists" short-circuit):
+        dotnet msbuild /t:BuildWindowsSDK src/Sentry.Unity -p:RebuildNativeSdk=true
+  -->
   <Target Name="BuildWindowsSDK" Condition="'$(MSBuildProjectName)' == 'Sentry.Unity'
           And $([MSBuild]::IsOsPlatform('Windows'))
-          And !Exists('$(SentryWindowsArtifactsDestination)sentry.dll')" BeforeTargets="BeforeBuild">
+          And ('$(RebuildNativeSdk)' == 'true' Or !Exists('$(SentryWindowsArtifactsDestination)sentry.dll'))" BeforeTargets="BeforeBuild">
     <Error Condition="!Exists('$(SentryNativeRoot)')" Text="Couldn't find the Native root at $(SentryNativeRoot)."></Error>
 
     <Message Importance="High" Text="Building artifacts of Sentry Native SDK for Windows." />
@@ -222,10 +286,15 @@
     <Copy SourceFiles="@(NativeSdkArtifacts)" DestinationFiles="@(NativeSdkArtifacts->'$(SentryWindowsArtifactsDestination)%(Filename)%(Extension)')" />
   </Target>
 
-  <!-- Build the Sentry Native SDK for Linux: dotnet msbuild /t:BuildLinuxSDK src/Sentry.Unity -->
+  <!--
+    Build the Sentry Native SDK for Linux:
+        dotnet msbuild /t:BuildLinuxSDK src/Sentry.Unity
+    Force a clean rebuild (bypass the "libsentry.so already exists" short-circuit):
+        dotnet msbuild /t:BuildLinuxSDK src/Sentry.Unity -p:RebuildNativeSdk=true
+  -->
   <Target Name="BuildLinuxSDK" Condition="'$(MSBuildProjectName)' == 'Sentry.Unity'
           And $([MSBuild]::IsOsPlatform('Linux'))
-          And !Exists('$(SentryLinuxArtifactsDestination)libsentry.so')" BeforeTargets="BeforeBuild">
+          And ('$(RebuildNativeSdk)' == 'true' Or !Exists('$(SentryLinuxArtifactsDestination)libsentry.so'))" BeforeTargets="BeforeBuild">
     <Error Condition="!Exists('$(SentryNativeRoot)')" Text="Couldn't find the Native root at $(SentryNativeRoot)."></Error>
 
     <Message Importance="High" Text="Building artifacts of Sentry Native SDK for Linux." />
diff --git a/modules/sentry-java b/modules/sentry-java
index 6219eb3d8..d738e64ab 160000
--- a/modules/sentry-java
+++ b/modules/sentry-java
@@ -1 +1 @@
-Subproject commit 6219eb3d898ce527b1024eaa75e6a3ee5e985601
+Subproject commit d738e64ab248b7397f4fe113d60d66c7e28de5dc
diff --git a/modules/sentry-native b/modules/sentry-native
index c0e5f0705..96bc21228 160000
--- a/modules/sentry-native
+++ b/modules/sentry-native
@@ -1 +1 @@
-Subproject commit c0e5f0705da3853ff548c7ece77d639a20e1d8f5
+Subproject commit 96bc212285a79b08b8035ab5bc7a6ca5d99b2306
diff --git a/samples/unity-of-bugs/Assets/Scenes/3_AdditionalSamples.unity b/samples/unity-of-bugs/Assets/Scenes/3_AdditionalSamples.unity
index 85086bcb6..6d7db894a 100644
--- a/samples/unity-of-bugs/Assets/Scenes/3_AdditionalSamples.unity
+++ b/samples/unity-of-bugs/Assets/Scenes/3_AdditionalSamples.unity
@@ -13,7 +13,7 @@ OcclusionCullingSettings:
 --- !u!104 &2
 RenderSettings:
   m_ObjectHideFlags: 0
-  serializedVersion: 9
+  serializedVersion: 10
   m_Fog: 0
   m_FogColor: {r: 0.5, g: 0.5, b: 0.5, a: 1}
   m_FogMode: 3
@@ -42,8 +42,8 @@ RenderSettings:
 --- !u!157 &3
 LightmapSettings:
   m_ObjectHideFlags: 0
-  serializedVersion: 12
-  m_GIWorkflowMode: 1
+  serializedVersion: 13
+  m_BakeOnSceneLoad: 0
   m_GISettings:
     serializedVersion: 2
     m_BounceScale: 1
@@ -66,9 +66,6 @@ LightmapSettings:
     m_LightmapParameters: {fileID: 0}
     m_LightmapsBakeMode: 1
     m_TextureCompression: 1
-    m_FinalGather: 0
-    m_FinalGatherFiltering: 1
-    m_FinalGatherRayCount: 256
     m_ReflectionCompression: 2
     m_MixedBakeMode: 2
     m_BakeBackend: 0
@@ -103,7 +100,7 @@ NavMeshSettings:
   serializedVersion: 2
   m_ObjectHideFlags: 0
   m_BuildSettings:
-    serializedVersion: 2
+    serializedVersion: 3
     agentTypeID: 0
     agentRadius: 0.5
     agentHeight: 2
@@ -116,12 +113,145 @@ NavMeshSettings:
     cellSize: 0.16666667
     manualTileSize: 0
     tileSize: 256
-    accuratePlacement: 0
+    buildHeightMesh: 0
     maxJobWorkers: 0
     preserveTilesOutsideBounds: 0
     debug:
       m_Flags: 0
   m_NavMeshData: {fileID: 0}
+--- !u!1 &191506112
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 191506113}
+  - component: {fileID: 191506116}
+  - component: {fileID: 191506115}
+  - component: {fileID: 191506114}
+  m_Layer: 5
+  m_Name: Application-Not-Responding (1)
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!224 &191506113
+RectTransform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 191506112}
+  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children:
+  - {fileID: 1603559786}
+  m_Father: {fileID: 253040315}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0, y: 0}
+  m_AnchorMax: {x: 0, y: 0}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 200, y: 30}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &191506114
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 191506112}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 4e29b1a8efbd4b44bb3f3716e73f07ff, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Navigation:
+    m_Mode: 3
+    m_WrapAround: 0
+    m_SelectOnUp: {fileID: 0}
+    m_SelectOnDown: {fileID: 0}
+    m_SelectOnLeft: {fileID: 0}
+    m_SelectOnRight: {fileID: 0}
+  m_Transition: 1
+  m_Colors:
+    m_NormalColor: {r: 1, g: 1, b: 1, a: 1}
+    m_HighlightedColor: {r: 0.9607843, g: 0.9607843, b: 0.9607843, a: 1}
+    m_PressedColor: {r: 0.78431374, g: 0.78431374, b: 0.78431374, a: 1}
+    m_SelectedColor: {r: 0.9607843, g: 0.9607843, b: 0.9607843, a: 1}
+    m_DisabledColor: {r: 0.78431374, g: 0.78431374, b: 0.78431374, a: 0.5019608}
+    m_ColorMultiplier: 1
+    m_FadeDuration: 0.1
+  m_SpriteState:
+    m_HighlightedSprite: {fileID: 0}
+    m_PressedSprite: {fileID: 0}
+    m_SelectedSprite: {fileID: 0}
+    m_DisabledSprite: {fileID: 0}
+  m_AnimationTriggers:
+    m_NormalTrigger: Normal
+    m_HighlightedTrigger: Highlighted
+    m_PressedTrigger: Pressed
+    m_SelectedTrigger: Selected
+    m_DisabledTrigger: Disabled
+  m_Interactable: 1
+  m_TargetGraphic: {fileID: 191506115}
+  m_OnClick:
+    m_PersistentCalls:
+      m_Calls:
+      - m_Target: {fileID: 253040317}
+        m_TargetAssemblyTypeName: AdditionalSampleButtons, Assembly-CSharp
+        m_MethodName: ApplicationNotRespondingNative
+        m_Mode: 1
+        m_Arguments:
+          m_ObjectArgument: {fileID: 0}
+          m_ObjectArgumentAssemblyTypeName: UnityEngine.Object, UnityEngine
+          m_IntArgument: 0
+          m_FloatArgument: 0
+          m_StringArgument: 
+          m_BoolArgument: 0
+        m_CallState: 1
+--- !u!114 &191506115
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 191506112}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: fe87c0e1cc204ed48ad3b37840f39efc, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Material: {fileID: 0}
+  m_Color: {r: 1, g: 1, b: 1, a: 1}
+  m_RaycastTarget: 1
+  m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
+  m_Maskable: 1
+  m_OnCullStateChanged:
+    m_PersistentCalls:
+      m_Calls: []
+  m_Sprite: {fileID: 10905, guid: 0000000000000000f000000000000000, type: 0}
+  m_Type: 1
+  m_PreserveAspect: 0
+  m_FillCenter: 1
+  m_FillMethod: 4
+  m_FillAmount: 1
+  m_FillClockwise: 1
+  m_FillOrigin: 0
+  m_UseSpriteMesh: 0
+  m_PixelsPerUnitMultiplier: 1
+--- !u!222 &191506116
+CanvasRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 191506112}
+  m_CullTransparentMesh: 0
 --- !u!1 &253040314
 GameObject:
   m_ObjectHideFlags: 0
@@ -156,9 +286,9 @@ RectTransform:
   - {fileID: 1326160953}
   - {fileID: 1983589452}
   - {fileID: 978406552}
+  - {fileID: 191506113}
   - {fileID: 2066465601}
   m_Father: {fileID: 1665572489}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 1}
   m_AnchorMax: {x: 1, y: 1}
@@ -234,9 +364,17 @@ Camera:
   m_projectionMatrixMode: 1
   m_GateFitMode: 2
   m_FOVAxisMode: 0
+  m_Iso: 200
+  m_ShutterSpeed: 0.005
+  m_Aperture: 16
+  m_FocusDistance: 10
+  m_FocalLength: 50
+  m_BladeCount: 5
+  m_Curvature: {x: 2, y: 11}
+  m_BarrelClipping: 0.25
+  m_Anamorphism: 0
   m_SensorSize: {x: 36, y: 24}
   m_LensShift: {x: 0, y: 0}
-  m_FocalLength: 50
   m_NormalizedViewPortRect:
     serializedVersion: 2
     x: 0
@@ -270,13 +408,13 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 519420028}
+  serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: -10}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &582054325
 GameObject:
@@ -318,13 +456,13 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 582054325}
+  serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 0}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!114 &582054329
 MonoBehaviour:
@@ -367,7 +505,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 5
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -405,7 +542,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 978406552}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -445,7 +581,7 @@ MonoBehaviour:
     m_HorizontalOverflow: 1
     m_VerticalOverflow: 0
     m_LineSpacing: 1
-  m_Text: Application-Not-Responding
+  m_Text: App Freeze in C#
 --- !u!222 &765642148
 CanvasRenderer:
   m_ObjectHideFlags: 0
@@ -487,7 +623,6 @@ RectTransform:
   m_Children:
   - {fileID: 834374186}
   m_Father: {fileID: 253040315}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -619,7 +754,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 802360430}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -699,7 +833,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 1983589452}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -781,7 +914,6 @@ RectTransform:
   m_Children:
   - {fileID: 765642146}
   m_Father: {fileID: 253040315}
-  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -915,7 +1047,6 @@ RectTransform:
   m_Children:
   - {fileID: 1857152829}
   m_Father: {fileID: 253040315}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1047,7 +1178,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 2066465601}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -1096,6 +1226,85 @@ CanvasRenderer:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1583546086}
   m_CullTransparentMesh: 0
+--- !u!1 &1603559785
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1603559786}
+  - component: {fileID: 1603559788}
+  - component: {fileID: 1603559787}
+  m_Layer: 5
+  m_Name: Text
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!224 &1603559786
+RectTransform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1603559785}
+  m_LocalRotation: {x: -0, y: -0, z: -0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 191506113}
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+  m_AnchorMin: {x: 0, y: 0}
+  m_AnchorMax: {x: 1, y: 1}
+  m_AnchoredPosition: {x: 0, y: 0}
+  m_SizeDelta: {x: 0, y: 0}
+  m_Pivot: {x: 0.5, y: 0.5}
+--- !u!114 &1603559787
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1603559785}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 5f7201a12d95ffc409449d95f23cf332, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_Material: {fileID: 0}
+  m_Color: {r: 0.19607843, g: 0.19607843, b: 0.19607843, a: 1}
+  m_RaycastTarget: 1
+  m_RaycastPadding: {x: 0, y: 0, z: 0, w: 0}
+  m_Maskable: 1
+  m_OnCullStateChanged:
+    m_PersistentCalls:
+      m_Calls: []
+  m_FontData:
+    m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
+    m_FontSize: 14
+    m_FontStyle: 0
+    m_BestFit: 0
+    m_MinSize: 0
+    m_MaxSize: 40
+    m_Alignment: 4
+    m_AlignByGeometry: 0
+    m_RichText: 1
+    m_HorizontalOverflow: 1
+    m_VerticalOverflow: 0
+    m_LineSpacing: 1
+  m_Text: App Freeze in Native
+--- !u!222 &1603559788
+CanvasRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1603559785}
+  m_CullTransparentMesh: 0
 --- !u!1 &1665572488
 GameObject:
   m_ObjectHideFlags: 0
@@ -1131,7 +1340,6 @@ RectTransform:
   - {fileID: 253040315}
   - {fileID: 5216638424148094703}
   m_Father: {fileID: 0}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1197,6 +1405,7 @@ Canvas:
   m_SortingBucketNormalizedSize: 0
   m_VertexColorAlwaysGammaSpace: 0
   m_AdditionalShaderChannelsFlag: 0
+  m_UpdateRectTransformForStandalone: 0
   m_SortingLayerID: 0
   m_SortingOrder: 0
   m_TargetDisplay: 0
@@ -1231,7 +1440,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 1326160953}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -1313,7 +1521,6 @@ RectTransform:
   m_Children:
   - {fileID: 908640125}
   m_Father: {fileID: 253040315}
-  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1447,7 +1654,6 @@ RectTransform:
   m_Children:
   - {fileID: 1583546087}
   m_Father: {fileID: 253040315}
-  m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1623,7 +1829,6 @@ RectTransform:
   - {fileID: 5216638425317031111}
   - {fileID: 735359052}
   m_Father: {fileID: 1665572489}
-  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0}
   m_AnchorMax: {x: 0.5, y: 0}
@@ -1703,7 +1908,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638425317031111}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -1765,7 +1969,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638425882040144}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -1837,7 +2040,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -1997,7 +2199,6 @@ RectTransform:
   m_Children:
   - {fileID: 5216638424536828319}
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 4
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2112,7 +2313,6 @@ RectTransform:
   m_Children:
   - {fileID: 5216638426142319615}
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2152,7 +2352,6 @@ RectTransform:
   m_Children:
   - {fileID: 5216638425035397373}
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2301,7 +2500,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638424148094703}
-  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 0, y: 0}
@@ -2381,7 +2579,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 5216638425805414493}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 0}
   m_AnchorMax: {x: 1, y: 1}
@@ -2453,7 +2650,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 7152012675849339084}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
   m_AnchorMax: {x: 0.5, y: 0.5}
@@ -2483,7 +2679,6 @@ RectTransform:
   - {fileID: 7152012675148913643}
   - {fileID: 7152012676968016302}
   m_Father: {fileID: 1665572489}
-  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0, y: 1}
   m_AnchorMax: {x: 1, y: 1}
@@ -2561,7 +2756,6 @@ RectTransform:
   m_ConstrainProportionsScale: 0
   m_Children: []
   m_Father: {fileID: 7152012675849339084}
-  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 0.5, y: 0.5}
   m_AnchorMax: {x: 0.5, y: 0.5}
@@ -2586,3 +2780,10 @@ GameObject:
   m_NavMeshLayer: 0
   m_StaticEditorFlags: 0
   m_IsActive: 1
+--- !u!1660057539 &9223372036854775807
+SceneRoots:
+  m_ObjectHideFlags: 0
+  m_Roots:
+  - {fileID: 1665572489}
+  - {fileID: 582054328}
+  - {fileID: 519420032}
diff --git a/samples/unity-of-bugs/Assets/Scripts/AdditionalSampleButtons.cs b/samples/unity-of-bugs/Assets/Scripts/AdditionalSampleButtons.cs
index 0bfac1503..80e6ab199 100644
--- a/samples/unity-of-bugs/Assets/Scripts/AdditionalSampleButtons.cs
+++ b/samples/unity-of-bugs/Assets/Scripts/AdditionalSampleButtons.cs
@@ -1,5 +1,8 @@
 using System;
 using System.Threading;
+#if UNITY_IOS
+using System.Runtime.InteropServices;
+#endif
 using Sentry;
 using Sentry.Unity;
 using Unity.Burst;
@@ -48,10 +51,32 @@ public void CaptureMessageWithContext()
     public void ApplicationNotResponding()
     {
         Debug.Log("Running Thread.Sleep() on the UI thread to trigger an ANR event.");
-        Thread.Sleep(6 * 1000); // ANR detection currently defaults to 5 seconds
+        Thread.Sleep(10 * 1000); // ANR detection currently defaults to 5 seconds
         Debug.Log("Thread.Sleep() finished.");
     }
 
+    public void ApplicationNotRespondingNative()
+    {
+#if UNITY_ANDROID && !UNITY_EDITOR
+        Debug.Log("Stalling the main thread via Kotlin to trigger a native ANR event.");
+        using (var jo = new AndroidJavaObject("unity.of.bugs.KotlinPlugin"))
+        {
+            jo.CallStatic("applicationNotResponding");
+        }
+#elif UNITY_IOS && !UNITY_EDITOR
+        Debug.Log("Stalling the main thread via Objective-C to trigger a native ANR event.");
+        applicationNotResponding();
+#else
+        Debug.LogWarning("Native ANR sample requires running on Android or iOS.");
+#endif
+    }
+
+#if UNITY_IOS && !UNITY_EDITOR
+    // ObjectiveCPlugin.m
+    [DllImport("__Internal")]
+    private static extern void applicationNotResponding();
+#endif
+
     public void Assert() => UnityEngine.Assertions.Assert.IsTrue(false);
 
 
diff --git a/samples/unity-of-bugs/Assets/Scripts/NativeSupport/KotlinPlugin.kt b/samples/unity-of-bugs/Assets/Scripts/NativeSupport/KotlinPlugin.kt
index 4f684b432..b975abfa7 100644
--- a/samples/unity-of-bugs/Assets/Scripts/NativeSupport/KotlinPlugin.kt
+++ b/samples/unity-of-bugs/Assets/Scripts/NativeSupport/KotlinPlugin.kt
@@ -18,4 +18,9 @@ object KotlinPlugin {
             throw Exception("Kotlin 🐛 from a background thread.")
         }
     }
+    @JvmStatic fun applicationNotResponding() {
+        Log.i("test", "Stalling the main thread from Kotlin to trigger a native ANR.")
+        Thread.sleep(10 * 1000) // ANR detection currently defaults to 5 seconds
+        Log.i("test", "Kotlin main thread stall finished.")
+    }
 }
diff --git a/samples/unity-of-bugs/Assets/Scripts/NativeSupport/ObjectiveCPlugin.m b/samples/unity-of-bugs/Assets/Scripts/NativeSupport/ObjectiveCPlugin.m
index e092f42eb..deaa19b51 100644
--- a/samples/unity-of-bugs/Assets/Scripts/NativeSupport/ObjectiveCPlugin.m
+++ b/samples/unity-of-bugs/Assets/Scripts/NativeSupport/ObjectiveCPlugin.m
@@ -16,4 +16,11 @@ void throwObjectiveC()
 #endif
 }
 
+void applicationNotResponding()
+{
+    NSLog(@"Stalling the main thread from Objective-C to trigger a native ANR.");
+    [NSThread sleepForTimeInterval:10.0]; // ANR detection currently defaults to 5 seconds
+    NSLog(@"Objective-C main thread stall finished.");
+}
+
 NS_ASSUME_NONNULL_END
diff --git a/scripts/build-cocoa-sdk.ps1 b/scripts/build-cocoa-sdk.ps1
index deb8444b7..ef745627f 100644
--- a/scripts/build-cocoa-sdk.ps1
+++ b/scripts/build-cocoa-sdk.ps1
@@ -8,7 +8,9 @@ param(
     [string]$iOSDestination,
 
     [Parameter(Mandatory = $true)]
-    [string]$macOSDestination
+    [string]$macOSDestination,
+
+    [switch]$Clean
 )
 
 Set-StrictMode -Version latest
@@ -25,6 +27,11 @@ $buildPath = Join-Path $CocoaRoot "XCFrameworkBuildPath"
 $iOSXcframeworkPath = Join-Path $buildPath "Sentry-Dynamic-iOS.xcframework"
 $macOSXcframeworkPath = Join-Path $buildPath "Sentry-Dynamic-macOS.xcframework"
 
+if ($Clean -and (Test-Path $buildPath)) {
+    Write-Host "Clean build requested — removing $buildPath" -ForegroundColor Yellow
+    Remove-Item -Path $buildPath -Recurse -Force
+}
+
 Write-Host "Building Cocoa SDK from source..." -ForegroundColor Yellow
 
 Push-Location $CocoaRoot
diff --git a/scripts/build-native-ndk-local.ps1 b/scripts/build-native-ndk-local.ps1
new file mode 100644
index 000000000..05773f490
--- /dev/null
+++ b/scripts/build-native-ndk-local.ps1
@@ -0,0 +1,124 @@
+<#
+.SYNOPSIS
+    Builds modules/sentry-native (NDK) and publishes the artifact to the local
+    Maven repo so modules/sentry-java consumes it instead of mavenCentral.
+
+.DESCRIPTION
+    Runs :sentry-native-ndk:publishToMavenLocal in modules/sentry-native/ndk,
+    producing io.sentry:sentry-native-ndk:<version> at ~/.m2.
+
+    Requires mavenLocal() to be listed before mavenCentral() in
+    modules/sentry-java/settings.gradle.kts. The script verifies this and
+    aborts otherwise.
+
+    Because both repos publish the same version coordinate, Gradle's module
+    and transform caches can hold a previously-resolved mavenCentral copy.
+    The first time you switch to local (or when the module cache holds a
+    stale build), pass -PurgeCache to wipe sentry-native-ndk caches and
+    stop the Gradle daemon so the next build re-resolves from mavenLocal.
+
+.PARAMETER PurgeCache
+    Delete sentry-native-ndk from the Gradle module cache and the related
+    transform directories, then stop the Gradle daemon. Use when switching
+    from mavenCentral resolution or when the consumed artifact looks stale.
+
+.PARAMETER BuildJava
+    After publishing, run :sentry-android-ndk:assembleRelease in
+    modules/sentry-java to consume the freshly published artifact.
+
+.EXAMPLE
+    pwsh scripts/build-native-ndk-local.ps1
+    # Publish ndk to ~/.m2 (assumes caches are already clean).
+
+.EXAMPLE
+    pwsh scripts/build-native-ndk-local.ps1 -PurgeCache -BuildJava
+    # Wipe stale caches, publish, then rebuild sentry-android-ndk against
+    # the local artifact.
+#>
+
+param(
+    [switch] $PurgeCache,
+    [switch] $BuildJava
+)
+
+$ErrorActionPreference = 'Stop'
+Set-StrictMode -Version Latest
+
+$repoRoot = Resolve-Path (Join-Path $PSScriptRoot '..')
+$ndkDir = Join-Path $repoRoot 'modules/sentry-native/ndk'
+$javaDir = Join-Path $repoRoot 'modules/sentry-java'
+$javaSettings = Join-Path $javaDir 'settings.gradle.kts'
+
+if (-not (Test-Path $ndkDir)) {
+    throw "sentry-native NDK module not found at $ndkDir. Did you check out the submodule?"
+}
+if (-not (Test-Path $javaSettings)) {
+    throw "sentry-java settings.gradle.kts not found at $javaSettings."
+}
+
+$settingsContent = Get-Content $javaSettings -Raw
+$drmMatch = [regex]::Match($settingsContent, 'dependencyResolutionManagement\s*\{[^}]*repositories\s*\{(?<repos>[^}]*)\}')
+if (-not $drmMatch.Success) {
+    throw "Could not locate dependencyResolutionManagement.repositories block in $javaSettings."
+}
+$reposBlock = $drmMatch.Groups['repos'].Value
+$localIdx = $reposBlock.IndexOf('mavenLocal()')
+$centralIdx = $reposBlock.IndexOf('mavenCentral()')
+if ($localIdx -lt 0 -or $centralIdx -lt 0 -or $localIdx -gt $centralIdx) {
+    throw @"
+mavenLocal() must appear before mavenCentral() in
+$javaSettings (dependencyResolutionManagement block) so sentry-java
+resolves the locally-published sentry-native-ndk artifact. Reorder the
+repositories and re-run this script.
+"@
+}
+
+if ($PurgeCache) {
+    Write-Host '==> Purging Gradle caches for sentry-native-ndk'
+    $gradleCaches = Join-Path $HOME '.gradle/caches'
+    $moduleCache = Join-Path $gradleCaches 'modules-2/files-2.1/io.sentry/sentry-native-ndk'
+    if (Test-Path $moduleCache) {
+        Remove-Item -Recurse -Force $moduleCache
+        Write-Host "    removed $moduleCache"
+    }
+
+    if (Test-Path $gradleCaches) {
+        $transformRoots = Get-ChildItem -Path $gradleCaches -Recurse -Force -ErrorAction SilentlyContinue `
+            | Where-Object { $_.FullName -like '*sentry-native-ndk*' } `
+            | ForEach-Object {
+                $idx = $_.FullName.IndexOf('/transformed/')
+                if ($idx -lt 0) { $idx = $_.FullName.IndexOf([IO.Path]::DirectorySeparatorChar + 'transformed' + [IO.Path]::DirectorySeparatorChar) }
+                if ($idx -ge 0) { $_.FullName.Substring(0, $idx) } else { $null }
+            } `
+            | Where-Object { $_ } `
+            | Sort-Object -Unique
+        foreach ($dir in $transformRoots) {
+            if (Test-Path $dir) {
+                Remove-Item -Recurse -Force $dir
+                Write-Host "    removed $dir"
+            }
+        }
+    }
+
+    Write-Host '==> Stopping Gradle daemon to clear in-memory transform registry'
+    Push-Location $ndkDir
+    try { & ./gradlew --stop | Out-Null } finally { Pop-Location }
+}
+
+Write-Host '==> Publishing sentry-native-ndk to mavenLocal'
+Push-Location $ndkDir
+try {
+    & ./gradlew :sentry-native-ndk:publishToMavenLocal
+    if ($LASTEXITCODE -ne 0) { throw "publishToMavenLocal failed (exit $LASTEXITCODE)" }
+} finally { Pop-Location }
+
+if ($BuildJava) {
+    Write-Host '==> Building :sentry-android-ndk:assembleRelease against mavenLocal'
+    Push-Location $javaDir
+    try {
+        & ./gradlew :sentry-android-ndk:assembleRelease
+        if ($LASTEXITCODE -ne 0) { throw "sentry-android-ndk assembleRelease failed (exit $LASTEXITCODE)" }
+    } finally { Pop-Location }
+}
+
+Write-Host '==> Done.'
diff --git a/src/Sentry.Unity.Android/AnrHeartbeat.cs b/src/Sentry.Unity.Android/AnrHeartbeat.cs
new file mode 100644
index 000000000..5428db0f3
--- /dev/null
+++ b/src/Sentry.Unity.Android/AnrHeartbeat.cs
@@ -0,0 +1,88 @@
+using System;
+using System.Collections;
+using Sentry.Extensibility;
+using UnityEngine;
+
+namespace Sentry.Unity.Android;
+
+/// <summary>
+/// Drives a per-frame-ish heartbeat from the Unity main thread into sentry-java,
+/// so sentry-java's ANR watchdog can detect when the Unity main thread is stuck.
+/// </summary>
+internal class AnrHeartbeat
+{
+    private readonly ISentryMonoBehaviour _monoBehaviour;
+    private readonly ISentryJava _sentryJava;
+    private readonly IDiagnosticLogger? _logger;
+    private readonly float _intervalSeconds;
+    private Coroutine? _coroutine;
+
+    public AnrHeartbeat(
+        ISentryMonoBehaviour monoBehaviour,
+        ISentryJava sentryJava,
+        TimeSpan anrTimeout,
+        IDiagnosticLogger? logger = null)
+    {
+        _monoBehaviour = monoBehaviour;
+        _sentryJava = sentryJava;
+        _logger = logger;
+        _intervalSeconds = Math.Max(0.001f, (float)(anrTimeout.TotalSeconds / 5));
+    }
+
+    public void Start()
+    {
+        if (_coroutine != null)
+        {
+            _logger?.LogDebug("ANR heartbeat already started; ignoring duplicate Start().");
+            return;
+        }
+
+        _coroutine = _monoBehaviour.StartCoroutine(Loop());
+        _monoBehaviour.ApplicationPausing += OnPause;
+        _monoBehaviour.ApplicationResuming += OnResume;
+        _logger?.LogDebug("ANR heartbeat started with interval {0}s", _intervalSeconds);
+    }
+
+    public void Stop()
+    {
+        _monoBehaviour.ApplicationPausing -= OnPause;
+        _monoBehaviour.ApplicationResuming -= OnResume;
+
+        if (_coroutine != null)
+        {
+            _monoBehaviour.StopCoroutine(_coroutine);
+            _coroutine = null;
+        }
+
+        _logger?.LogDebug("ANR heartbeat stopped.");
+    }
+
+    internal void Beat() => _sentryJava.NotifyAnrThreadAlive();
+
+    private IEnumerator Loop()
+    {
+        var wait = new WaitForSecondsRealtime(_intervalSeconds);
+        while (true)
+        {
+            Beat();
+            yield return wait;
+        }
+    }
+
+    private void OnPause()
+    {
+        if (_coroutine != null)
+        {
+            _monoBehaviour.StopCoroutine(_coroutine);
+            _coroutine = null;
+        }
+    }
+
+    private void OnResume()
+    {
+        if (_coroutine == null)
+        {
+            _coroutine = _monoBehaviour.StartCoroutine(Loop());
+        }
+    }
+}
diff --git a/src/Sentry.Unity.Android/SentryJava.cs b/src/Sentry.Unity.Android/SentryJava.cs
index 965d41ca9..a6e13cf90 100644
--- a/src/Sentry.Unity.Android/SentryJava.cs
+++ b/src/Sentry.Unity.Android/SentryJava.cs
@@ -45,6 +45,7 @@ public void WriteScope(
     void AddAttachment(string path, string fileName, string? contentType);
     void AddAttachmentBytes(byte[] data, string fileName, string? contentType);
     void ClearAttachments();
+    void NotifyAnrThreadAlive();
 }
 
 /// <summary>
@@ -68,6 +69,9 @@ internal class SentryJava : ISentryJava
 
     private static AndroidJavaObject GetInternalSentryJava() => new AndroidJavaClass("io.sentry.android.core.InternalSentrySdk");
     private static AndroidJavaObject GetSentryJava() => new AndroidJavaClass("io.sentry.Sentry");
+    // The heartbeat registry is sentry-java's @ApiStatus.Internal entry point for hybrid SDKs;
+    // it deliberately bypasses the public Sentry/Scopes plumbing.
+    private static AndroidJavaObject GetAnrHeartbeatRegistry() => new AndroidJavaClass("io.sentry.AnrHeartbeatRegistry");
 
     public SentryJava(IDiagnosticLogger? logger, IAndroidJNI? androidJNI = null)
     {
@@ -145,6 +149,14 @@ public void Init(SentryUnityOptions options)
                 androidOptions.Call("setReportHistoricalAnrs", options.AndroidReportHistoricalAnrs);
                 androidOptions.Call("setAttachAnrThreadDump", options.AndroidAttachAnrThreadDump);
 
+                if (options.AndroidNativeAnrEnabled)
+                {
+                    using var processClass = new AndroidJavaClass("android.os.Process");
+                    var mainThreadTid = processClass.CallStatic<int>("myTid");
+                    _logger?.LogDebug("Setting ANR thread id on sentry-java: {0}", mainThreadTid);
+                    androidOptions.Call("setAnrThreadId", (long)mainThreadTid);
+                }
+
                 using (var logsOptions = androidOptions.Call<AndroidJavaObject>("getLogs"))
                 {
                     logsOptions.Call("setEnabled", options.EnableLogs);
@@ -415,6 +427,25 @@ public void ClearAttachments()
         });
     }
 
+    public void NotifyAnrThreadAlive()
+    {
+        if (_closed)
+        {
+            _logger?.LogInfo("SentryJava is closed, skipping 'NotifyAnrThreadAlive'");
+            return;
+        }
+
+        try
+        {
+            using var registry = GetAnrHeartbeatRegistry();
+            registry.CallStatic("notifyAlive");
+        }
+        catch (Exception e)
+        {
+            _logger?.LogError(e, "Calling 'SentryJava.NotifyAnrThreadAlive' failed.");
+        }
+    }
+
     // https://github.com/getsentry/sentry-java/blob/db4dfc92f202b1cefc48d019fdabe24d487db923/sentry/src/main/java/io/sentry/SentryLevel.java#L4-L9
     internal static string GetLevelString(SentryLevel level) => level switch
     {
diff --git a/src/Sentry.Unity.Android/SentryNativeAndroid.cs b/src/Sentry.Unity.Android/SentryNativeAndroid.cs
index 468e796f4..350ec9ea2 100644
--- a/src/Sentry.Unity.Android/SentryNativeAndroid.cs
+++ b/src/Sentry.Unity.Android/SentryNativeAndroid.cs
@@ -15,6 +15,11 @@ public static class SentryNativeAndroid
     // parameter on `Configure` due SentryNativeAndroid being public
     internal static ISentryJava? SentryJava;
 
+    // Test seam: lets tests observe heartbeat construction without running coroutines.
+    internal static Func<ISentryJava, SentryUnityOptions, AnrHeartbeat>? HeartbeatFactory;
+
+    internal static AnrHeartbeat? Heartbeat;
+
     private static IDiagnosticLogger? Logger;
 
     /// <summary>
@@ -67,6 +72,17 @@ public static void Configure(SentryUnityOptions options)
             }
         }
 
+        if (options.AndroidNativeAnrEnabled)
+        {
+            Logger?.LogDebug("Disabling the C# ANR watchdog on Android - sentry-java handles app hang detection.");
+            options.DisableAnrIntegration();
+
+            Heartbeat = HeartbeatFactory is not null
+                ? HeartbeatFactory(SentryJava!, options)
+                : new AnrHeartbeat(SentryMonoBehaviour.Instance, SentryJava!, options.AnrTimeout, Logger);
+            Heartbeat.Start();
+        }
+
         Logger?.LogDebug("Configuring scope sync");
 
         options.NativeContextWriter = new NativeContextWriter(SentryJava);
@@ -132,6 +148,12 @@ public static void Close(SentryUnityOptions options)
     {
         Logger?.LogInfo("Attempting to close the Android SDK");
 
+        if (Heartbeat is not null)
+        {
+            Heartbeat.Stop();
+            Heartbeat = null;
+        }
+
         if (!options.IsNativeSupportEnabled())
         {
             Logger?.LogDebug("Android Native Support is not enabled. Skipping closing the Android SDK");
diff --git a/src/Sentry.Unity/SentryMonoBehaviour.cs b/src/Sentry.Unity/SentryMonoBehaviour.cs
index 2d93d8f0d..81a6e0f6b 100644
--- a/src/Sentry.Unity/SentryMonoBehaviour.cs
+++ b/src/Sentry.Unity/SentryMonoBehaviour.cs
@@ -10,7 +10,9 @@ namespace Sentry.Unity;
 internal interface ISentryMonoBehaviour
 {
     event Action? ApplicationResuming;
+    event Action? ApplicationPausing;
     public Coroutine StartCoroutine(IEnumerator routine);
+    public void StopCoroutine(Coroutine routine);
     public void QueueCoroutine(IEnumerator routine);
 }
 
diff --git a/src/Sentry.Unity/SentryUnityOptionsExtensions.cs b/src/Sentry.Unity/SentryUnityOptionsExtensions.cs
index 38652449e..cf7a81e75 100644
--- a/src/Sentry.Unity/SentryUnityOptionsExtensions.cs
+++ b/src/Sentry.Unity/SentryUnityOptionsExtensions.cs
@@ -1,4 +1,6 @@
+using System.Linq;
 using Sentry.Extensibility;
+using Sentry.Integrations;
 using Sentry.Unity.Integrations;
 using UnityEngine;
 
@@ -106,6 +108,13 @@ public static void DisableUnhandledExceptionCapture(this SentryUnityOptions opti
     public static void DisableAnrIntegration(this SentryUnityOptions options) =>
         options.RemoveIntegration<AnrIntegration>();
 
+    // Bridge for cross-assembly tests (e.g. Sentry.Unity.Android.Tests) that need to inspect
+    // integrations. SentryOptions.HasIntegration and SentryOptions.Integrations are internal
+    // to Sentry, whose InternalsVisibleTo list doesn't include the Android tests project —
+    // but Sentry.Unity.Android.Tests does have access to Sentry.Unity's internals.
+    internal static bool HasIntegration<T>(this SentryUnityOptions options) where T : ISdkIntegration
+        => options.Integrations.Any(i => i is T);
+
     /// <summary>
     /// Disables the automatic filtering of Bad Gateway exception of type Exception.
     /// </summary>
diff --git a/test/Sentry.Unity.Android.Tests/AnrHeartbeatTests.cs b/test/Sentry.Unity.Android.Tests/AnrHeartbeatTests.cs
new file mode 100644
index 000000000..5a8856421
--- /dev/null
+++ b/test/Sentry.Unity.Android.Tests/AnrHeartbeatTests.cs
@@ -0,0 +1,120 @@
+using System;
+using NUnit.Framework;
+using Sentry.Unity.Tests.SharedClasses;
+using Sentry.Unity.Tests.Stubs;
+using UnityEngine;
+
+namespace Sentry.Unity.Android.Tests;
+
+public class AnrHeartbeatTests
+{
+    private TestLogger _logger = null!;
+    private TestSentryJava _sentryJava = null!;
+    private TestSentryMonoBehaviour _monoBehaviour = null!;
+    private GameObject _gameObject = null!;
+
+    [SetUp]
+    public void SetUp()
+    {
+        _logger = new TestLogger();
+        _sentryJava = new TestSentryJava();
+        _gameObject = new GameObject(nameof(AnrHeartbeatTests));
+        _monoBehaviour = _gameObject.AddComponent<TestSentryMonoBehaviour>();
+    }
+
+    [TearDown]
+    public void TearDown() => UnityEngine.Object.DestroyImmediate(_gameObject);
+
+    [Test]
+    public void Beat_CallsNotifyAnrThreadAlive()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+
+        sut.Beat();
+        sut.Beat();
+
+        Assert.AreEqual(2, _sentryJava.NotifyAnrThreadAliveCount);
+    }
+
+    [Test]
+    public void Start_StartsCoroutineAndSubscribesToPauseResume()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+
+        sut.Start();
+
+        Assert.IsTrue(_monoBehaviour.StartCoroutineCalled);
+    }
+
+    [Test]
+    public void OnPause_StopsCoroutine()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+        sut.Start();
+
+        _monoBehaviour.PauseApplication();
+
+        Assert.AreEqual(1, _monoBehaviour.StopCoroutineCallCount);
+    }
+
+    [Test]
+    public void OnResume_RestartsCoroutine()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+        sut.Start();
+        _monoBehaviour.PauseApplication();
+
+        _monoBehaviour.ResumeApplication();
+
+        // First start + restart on resume = StartCoroutineCalled stays true (it's a flag),
+        // verify by checking the heartbeat is once again live: a subsequent pause stops again.
+        _monoBehaviour.PauseApplication();
+        Assert.AreEqual(2, _monoBehaviour.StopCoroutineCallCount);
+    }
+
+    [Test]
+    public void Constructor_ClampsIntervalAboveZero()
+    {
+        // Should not throw even with a zero timeout.
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.Zero, _logger);
+        Assert.DoesNotThrow(() => sut.Beat());
+    }
+
+    [Test]
+    public void Start_CalledTwice_IsIdempotent()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+        sut.Start();
+        sut.Start();
+
+        // A single pause should produce exactly one StopCoroutine call. If Start were
+        // not idempotent, the second pause-resume cycle would observe duplicate handlers.
+        _monoBehaviour.PauseApplication();
+        Assert.AreEqual(1, _monoBehaviour.StopCoroutineCallCount);
+    }
+
+    [Test]
+    public void Stop_StopsCoroutineAndUnsubscribes()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+        sut.Start();
+
+        sut.Stop();
+
+        // Stop itself counts as a coroutine stop.
+        Assert.AreEqual(1, _monoBehaviour.StopCoroutineCallCount);
+
+        // Subsequent pause must not trigger another stop (handler should be unsubscribed).
+        _monoBehaviour.PauseApplication();
+        Assert.AreEqual(1, _monoBehaviour.StopCoroutineCallCount);
+    }
+
+    [Test]
+    public void Stop_BeforeStart_DoesNothing()
+    {
+        var sut = new AnrHeartbeat(_monoBehaviour, _sentryJava, TimeSpan.FromSeconds(5), _logger);
+
+        Assert.DoesNotThrow(() => sut.Stop());
+        Assert.AreEqual(0, _monoBehaviour.StopCoroutineCallCount);
+    }
+}
diff --git a/test/Sentry.Unity.Android.Tests/Sentry.Unity.Android.Tests.csproj b/test/Sentry.Unity.Android.Tests/Sentry.Unity.Android.Tests.csproj
index 45576d0ff..65eed1bbe 100644
--- a/test/Sentry.Unity.Android.Tests/Sentry.Unity.Android.Tests.csproj
+++ b/test/Sentry.Unity.Android.Tests/Sentry.Unity.Android.Tests.csproj
@@ -12,5 +12,8 @@
     <Compile Include="../SharedClasses/*.cs">
       <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
     </Compile>
+    <Compile Include="../Sentry.Unity.Tests/Stubs/SentryTestMonoBehaviour.cs">
+      <Link>Stubs/SentryTestMonoBehaviour.cs</Link>
+    </Compile>
   </ItemGroup>
 </Project>
diff --git a/test/Sentry.Unity.Android.Tests/SentryJavaTests.cs b/test/Sentry.Unity.Android.Tests/SentryJavaTests.cs
index a8ab9696a..2c6e65bd3 100644
--- a/test/Sentry.Unity.Android.Tests/SentryJavaTests.cs
+++ b/test/Sentry.Unity.Android.Tests/SentryJavaTests.cs
@@ -142,6 +142,17 @@ public void RunJniSafe_AfterClose_SkipsActionAndLogsWarning()
             "Should log warning when trying to queue action after Close()");
     }
 
+    [Test]
+    public void TestSentryJava_RecordsNotifyAnrThreadAlive()
+    {
+        var stub = new TestSentryJava();
+
+        stub.NotifyAnrThreadAlive();
+        stub.NotifyAnrThreadAlive();
+
+        Assert.AreEqual(2, stub.NotifyAnrThreadAliveCount);
+    }
+
     internal class TestAndroidJNI : IAndroidJNI
     {
         public bool AttachCalled { get; private set; }
diff --git a/test/Sentry.Unity.Android.Tests/SentryNativeAndroidTests.cs b/test/Sentry.Unity.Android.Tests/SentryNativeAndroidTests.cs
index 09d2057fb..567eedf61 100644
--- a/test/Sentry.Unity.Android.Tests/SentryNativeAndroidTests.cs
+++ b/test/Sentry.Unity.Android.Tests/SentryNativeAndroidTests.cs
@@ -4,6 +4,7 @@
 using NUnit.Framework;
 using Sentry.Unity.Tests.SharedClasses;
 using Sentry.Unity.Tests.Stubs;
+using UnityEngine;
 
 namespace Sentry.Unity.Android.Tests;
 
@@ -193,4 +194,103 @@ public void Configure_NativeInitFails_LogsErrorAndReturns()
 
         Assert.Null(options.ScopeObserver);
     }
+
+    [Test]
+    public void Configure_AndroidNativeAnrEnabled_RemovesAnrIntegration()
+    {
+        var options = new SentryUnityOptions { AndroidNativeAnrEnabled = true };
+        Assert.IsTrue(options.HasIntegration<AnrIntegration>()); // sanity
+
+        SentryNativeAndroid.Configure(options);
+
+        Assert.IsFalse(options.HasIntegration<AnrIntegration>());
+    }
+
+    [Test]
+    public void Configure_AndroidNativeAnrDisabled_KeepsAnrIntegration()
+    {
+        var options = new SentryUnityOptions { AndroidNativeAnrEnabled = false };
+
+        SentryNativeAndroid.Configure(options);
+
+        Assert.IsTrue(options.HasIntegration<AnrIntegration>());
+    }
+
+    [Test]
+    public void Configure_AndroidNativeAnrEnabled_StartsHeartbeat()
+    {
+        var options = new SentryUnityOptions { AndroidNativeAnrEnabled = true };
+        AnrHeartbeat? built = null;
+        var go = new GameObject(nameof(Configure_AndroidNativeAnrEnabled_StartsHeartbeat));
+        try
+        {
+            var monoBehaviour = go.AddComponent<Sentry.Unity.Tests.Stubs.TestSentryMonoBehaviour>();
+            SentryNativeAndroid.HeartbeatFactory = (java, opts) =>
+            {
+                built = new AnrHeartbeat(monoBehaviour, java, opts.AnrTimeout);
+                return built;
+            };
+
+            SentryNativeAndroid.Configure(options);
+
+            Assert.NotNull(built);
+            Assert.IsTrue(monoBehaviour.StartCoroutineCalled);
+        }
+        finally
+        {
+            SentryNativeAndroid.HeartbeatFactory = null;
+            SentryNativeAndroid.Heartbeat = null;
+            UnityEngine.Object.DestroyImmediate(go);
+        }
+    }
+
+    [Test]
+    public void Configure_AndroidNativeAnrDisabled_DoesNotStartHeartbeat()
+    {
+        var options = new SentryUnityOptions { AndroidNativeAnrEnabled = false };
+        var built = false;
+        SentryNativeAndroid.HeartbeatFactory = (_, _) =>
+        {
+            built = true;
+            return null!;
+        };
+        try
+        {
+            SentryNativeAndroid.Configure(options);
+            Assert.IsFalse(built);
+        }
+        finally
+        {
+            SentryNativeAndroid.HeartbeatFactory = null;
+            SentryNativeAndroid.Heartbeat = null;
+        }
+    }
+
+    [Test]
+    public void Close_StopsHeartbeat()
+    {
+        var options = new SentryUnityOptions { AndroidNativeAnrEnabled = true };
+        var go = new GameObject(nameof(Close_StopsHeartbeat));
+        try
+        {
+            var monoBehaviour = go.AddComponent<Sentry.Unity.Tests.Stubs.TestSentryMonoBehaviour>();
+            SentryNativeAndroid.HeartbeatFactory = (java, opts) =>
+                new AnrHeartbeat(monoBehaviour, java, opts.AnrTimeout);
+
+            SentryNativeAndroid.Configure(options);
+            Assert.IsNotNull(SentryNativeAndroid.Heartbeat); // sanity
+            var stopCountBefore = monoBehaviour.StopCoroutineCallCount;
+
+            SentryNativeAndroid.Close(options);
+
+            Assert.IsNull(SentryNativeAndroid.Heartbeat);
+            Assert.AreEqual(stopCountBefore + 1, monoBehaviour.StopCoroutineCallCount);
+        }
+        finally
+        {
+            SentryNativeAndroid.HeartbeatFactory = null;
+            SentryNativeAndroid.Heartbeat = null;
+            UnityEngine.Object.DestroyImmediate(go);
+        }
+    }
 }
diff --git a/test/Sentry.Unity.Android.Tests/TestSentryJava.cs b/test/Sentry.Unity.Android.Tests/TestSentryJava.cs
index 195d94221..d823b177f 100644
--- a/test/Sentry.Unity.Android.Tests/TestSentryJava.cs
+++ b/test/Sentry.Unity.Android.Tests/TestSentryJava.cs
@@ -60,4 +60,8 @@ public void AddAttachment(string path, string fileName, string? contentType) { }
     public void AddAttachmentBytes(byte[] data, string fileName, string? contentType) { }
 
     public void ClearAttachments() { }
+
+    public int NotifyAnrThreadAliveCount { get; private set; }
+
+    public void NotifyAnrThreadAlive() => NotifyAnrThreadAliveCount++;
 }
diff --git a/test/Sentry.Unity.Tests/SentryMonoBehaviourTests.cs b/test/Sentry.Unity.Tests/SentryMonoBehaviourTests.cs
index 586b1dea1..01fc950bb 100644
--- a/test/Sentry.Unity.Tests/SentryMonoBehaviourTests.cs
+++ b/test/Sentry.Unity.Tests/SentryMonoBehaviourTests.cs
@@ -128,4 +128,24 @@ IEnumerator TestCoroutine()
 
         Assert.IsTrue(coroutineExecuted);
     }
+
+    [Test]
+    public void TestSentryMonoBehaviour_RaisesApplicationPausing()
+    {
+        var go = new GameObject(nameof(TestSentryMonoBehaviour_RaisesApplicationPausing));
+        try
+        {
+            var sut = go.AddComponent<Sentry.Unity.Tests.Stubs.TestSentryMonoBehaviour>();
+            var raised = 0;
+            ((ISentryMonoBehaviour)sut).ApplicationPausing += () => raised++;
+
+            sut.PauseApplication();
+
+            Assert.AreEqual(1, raised);
+        }
+        finally
+        {
+            Object.DestroyImmediate(go);
+        }
+    }
 }
diff --git a/test/Sentry.Unity.Tests/Stubs/SentryTestMonoBehaviour.cs b/test/Sentry.Unity.Tests/Stubs/SentryTestMonoBehaviour.cs
index f911d21b9..661a79413 100644
--- a/test/Sentry.Unity.Tests/Stubs/SentryTestMonoBehaviour.cs
+++ b/test/Sentry.Unity.Tests/Stubs/SentryTestMonoBehaviour.cs
@@ -7,9 +7,12 @@ namespace Sentry.Unity.Tests.Stubs;
 internal class TestSentryMonoBehaviour : MonoBehaviour, ISentryMonoBehaviour
 {
     public event System.Action? ApplicationResuming;
+    public event System.Action? ApplicationPausing;
     public void ResumeApplication() => ApplicationResuming?.Invoke();
+    public void PauseApplication() => ApplicationPausing?.Invoke();
 
     public bool StartCoroutineCalled { get; private set; }
+    public int StopCoroutineCallCount { get; private set; }
 
     public new Coroutine StartCoroutine(IEnumerator routine)
     {
@@ -17,6 +20,12 @@ internal class TestSentryMonoBehaviour : MonoBehaviour, ISentryMonoBehaviour
         return base.StartCoroutine(routine);
     }
 
+    public new void StopCoroutine(Coroutine routine)
+    {
+        StopCoroutineCallCount++;
+        base.StopCoroutine(routine);
+    }
+
     public void QueueCoroutine(IEnumerator routine)
     {
         // For tests, assume we're on the main thread and start immediately