diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
index 66f882884cb7..e6c489316411 100644
--- a/.config/dotnet-tools.json
+++ b/.config/dotnet-tools.json
@@ -21,7 +21,7 @@
       ]
     },
     "microsoft.dotnet.xharness.cli": {
-      "version": "8.0.0-prerelease.23516.1",
+      "version": "8.0.0-prerelease.23519.1",
       "commands": [
         "xharness"
       ]
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 6d0ce643c5d3..eb3cddeda214 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -4,17 +4,17 @@
       <Uri>https://github.com/dotnet/templating</Uri>
       <Sha>3f4da9ced34942d83054e647f3b1d9d7dde281e8</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Common" Version="8.0.0-prerelease.23516.1">
+    <Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Common" Version="8.0.0-prerelease.23519.1">
       <Uri>https://github.com/dotnet/xharness</Uri>
-      <Sha>02098f6cf81169134770ee47acc2aca0910635bb</Sha>
+      <Sha>de2e6a5e7ac1f33558ba06af1173122d93f0962e</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Xunit" Version="8.0.0-prerelease.23516.1">
+    <Dependency Name="Microsoft.DotNet.XHarness.TestRunners.Xunit" Version="8.0.0-prerelease.23519.1">
       <Uri>https://github.com/dotnet/xharness</Uri>
-      <Sha>02098f6cf81169134770ee47acc2aca0910635bb</Sha>
+      <Sha>de2e6a5e7ac1f33558ba06af1173122d93f0962e</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.XHarness.CLI" Version="8.0.0-prerelease.23516.1">
+    <Dependency Name="Microsoft.DotNet.XHarness.CLI" Version="8.0.0-prerelease.23519.1">
       <Uri>https://github.com/dotnet/xharness</Uri>
-      <Sha>02098f6cf81169134770ee47acc2aca0910635bb</Sha>
+      <Sha>de2e6a5e7ac1f33558ba06af1173122d93f0962e</Sha>
     </Dependency>
   </ProductDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index ba3a746f2db8..a6d822d29094 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -78,9 +78,9 @@
     <_HarfBuzzSharpVersion>7.3.0</_HarfBuzzSharpVersion>
     <_SkiaSharpNativeAssetsVersion>0.0.0-commit.e2c5c86249621857107c779af0f79b4d06613766.655</_SkiaSharpNativeAssetsVersion>
     <MicrosoftTemplateEngineTasksVersion>7.0.100-preview.5.22226.1</MicrosoftTemplateEngineTasksVersion>
-    <MicrosoftDotNetXHarnessTestRunnersCommonVersion>8.0.0-prerelease.23516.1</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
-    <MicrosoftDotNetXHarnessTestRunnersXunitVersion>8.0.0-prerelease.23516.1</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
-    <MicrosoftDotNetXHarnessCLIVersion>8.0.0-prerelease.23516.1</MicrosoftDotNetXHarnessCLIVersion>
+    <MicrosoftDotNetXHarnessTestRunnersCommonVersion>8.0.0-prerelease.23519.1</MicrosoftDotNetXHarnessTestRunnersCommonVersion>
+    <MicrosoftDotNetXHarnessTestRunnersXunitVersion>8.0.0-prerelease.23519.1</MicrosoftDotNetXHarnessTestRunnersXunitVersion>
+    <MicrosoftDotNetXHarnessCLIVersion>8.0.0-prerelease.23519.1</MicrosoftDotNetXHarnessCLIVersion>
     <TizenUIExtensionsVersion>0.9.0</TizenUIExtensionsVersion>
     <SvgSkiaPackageVersion>0.5.13</SvgSkiaPackageVersion>
     <FizzlerPackageVersion>1.2.0</FizzlerPackageVersion>
diff --git a/eng/pipelines/common/maui-templates.yml b/eng/pipelines/common/maui-templates.yml
index 3f45868eebed..7bb402402463 100644
--- a/eng/pipelines/common/maui-templates.yml
+++ b/eng/pipelines/common/maui-templates.yml
@@ -75,6 +75,7 @@ jobs:
     demands:
       - macOS.Name -equals Ventura
       - macOS.Architecture -equals x64
+      - Agent.OSVersion -equals 13.5
   steps:
 
   - ${{ each step in parameters.prepareSteps }}:
@@ -161,7 +162,7 @@ jobs:
         DOTNET_TOKEN: $(dotnetbuilds-internal-container-read-token)
         PRIVATE_BUILD: $(PrivateBuild)
 
-    - script: dotnet tool update Microsoft.DotNet.XHarness.CLI --add-source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json --version "1.0.0-prerelease*" -g
+    - script: dotnet tool update Microsoft.DotNet.XHarness.CLI --add-source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json --version "8.0.0-prerelease.23519.1" -g
       displayName: install xharness
 
     - pwsh: ./build.ps1 --target=dotnet-integration-build --verbosity=diagnostic
diff --git a/eng/pipelines/common/variables.yml b/eng/pipelines/common/variables.yml
index e826de1d6557..04c639acb5aa 100644
--- a/eng/pipelines/common/variables.yml
+++ b/eng/pipelines/common/variables.yml
@@ -8,9 +8,9 @@ variables:
 - name: DOTNET_VERSION
   value: 7.0.401
 - name: REQUIRED_XCODE
-  value: 14.3.1
+  value: 15.0.0
 - name: DEVICETESTS_REQUIRED_XCODE
-  value: 14.3.1
+  value: 15.0.0
 - name: LocBranchPrefix
   value: 'loc-hb'
 - name: isMainBranch
diff --git a/eng/pipelines/device-tests.yml b/eng/pipelines/device-tests.yml
index b4d35e7e25f9..a1219ff1ebb0 100644
--- a/eng/pipelines/device-tests.yml
+++ b/eng/pipelines/device-tests.yml
@@ -74,6 +74,7 @@ parameters:
       demands:
         - macOS.Name -equals Ventura
         - macOS.Architecture -equals x64
+        - Agent.OSVersion -equals 13.5
 
   - name: catalystPool
     type: object
diff --git a/eng/pipelines/ui-tests.yml b/eng/pipelines/ui-tests.yml
index 24d136f97da6..e709533a887a 100644
--- a/eng/pipelines/ui-tests.yml
+++ b/eng/pipelines/ui-tests.yml
@@ -78,6 +78,7 @@ parameters:
       demands:
         - macOS.Name -equals Ventura
         - macOS.Architecture -equals x64
+        - Agent.OSVersion -equals 13.5
   
   - name: windowsPool
     type: object