diff --git a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
index 9b0e2e2853..043eab3f5a 100644
--- a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
+++ b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj
@@ -322,6 +322,7 @@
     <ClCompile Include="RestInterface_1_5.cpp" />
     <ClCompile Include="RestInterface_1_6.cpp" />
     <ClCompile Include="RestInterface_1_7.cpp" />
+    <ClCompile Include="RestInterface_1_9.cpp" />
     <ClCompile Include="ResumeFlow.cpp" />
     <ClCompile Include="Runtime.cpp" />
     <ClCompile Include="SearchRequestSerializer.cpp" />
diff --git a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
index 2bbcd74516..a24784a802 100644
--- a/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
+++ b/src/AppInstallerCLITests/AppInstallerCLITests.vcxproj.filters
@@ -365,6 +365,9 @@
     <ClCompile Include="Sixel.cpp">
       <Filter>Source Files\CLI</Filter>
     </ClCompile>
+    <ClCompile Include="RestInterface_1_9.cpp">
+      <Filter>Source Files\Repository</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="PropertySheet.props" />
diff --git a/src/AppInstallerCLITests/RestClient.cpp b/src/AppInstallerCLITests/RestClient.cpp
index a45a9e2eba..a864454f76 100644
--- a/src/AppInstallerCLITests/RestClient.cpp
+++ b/src/AppInstallerCLITests/RestClient.cpp
@@ -51,7 +51,7 @@ TEST_CASE("GetSupportedInterface", "[RestSource]")
     REQUIRE(RestClient::GetSupportedInterface(TestRestUri, {}, info, {}, version, {})->GetVersion() == version);
 
     // Update this test to next version so that we don't forget to add to supported versions before rest e2e tests are available.
-    Version invalid{ "1.8.0" };
+    Version invalid{ "1.10.0" };
     REQUIRE_THROWS_HR(RestClient::GetSupportedInterface(TestRestUri, {}, info, {}, invalid, {}), APPINSTALLER_CLI_ERROR_RESTSOURCE_INVALID_VERSION);
 
     Authentication::AuthenticationArguments authArgs;
diff --git a/src/AppInstallerCLITests/RestInterface_1_9.cpp b/src/AppInstallerCLITests/RestInterface_1_9.cpp
new file mode 100644
index 0000000000..e33480dd19
--- /dev/null
+++ b/src/AppInstallerCLITests/RestInterface_1_9.cpp
@@ -0,0 +1,400 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+#include "pch.h"
+#include "TestCommon.h"
+#include "TestRestRequestHandler.h"
+#include <Rest/Schema/1_9/Interface.h>
+#include <Rest/Schema/IRestClient.h>
+#include <AppInstallerVersions.h>
+#include <AppInstallerErrors.h>
+
+using namespace TestCommon;
+using namespace AppInstaller::Http;
+using namespace AppInstaller::Utility;
+using namespace AppInstaller::Manifest;
+using namespace AppInstaller::Repository;
+using namespace AppInstaller::Repository::Rest;
+using namespace AppInstaller::Repository::Rest::Schema;
+using namespace AppInstaller::Repository::Rest::Schema::V1_9;
+
+namespace
+{
+    const std::string TestRestUriString = "http://restsource.com/api";
+
+    struct GoodManifest_AllFields
+    {
+        utility::string_t GetSampleManifest_AllFields()
+        {
+            return _XPLATSTR(
+                R"delimiter(
+        {
+          "Data": {
+            "PackageIdentifier": "Foo.Bar",
+            "Versions": [
+              {
+                "PackageVersion": "3.0.0abc",
+                "DefaultLocale": {
+                  "PackageLocale": "en-US",
+                  "Publisher": "Foo",
+                  "PublisherUrl": "http://publisher.net",
+                  "PublisherSupportUrl": "http://publisherSupport.net",
+                  "PrivacyUrl": "http://packagePrivacyUrl.net",
+                  "Author": "FooBar",
+                  "PackageName": "Bar",
+                  "PackageUrl": "http://packageUrl.net",
+                  "License": "Foo Bar License",
+                  "LicenseUrl": "http://licenseUrl.net",
+                  "Copyright": "Foo Bar Copyright",
+                  "CopyrightUrl": "http://copyrightUrl.net",
+                  "ShortDescription": "Foo bar is a foo bar.",
+                  "Description": "Foo bar is a placeholder.",
+                  "Tags": [
+                    "FooBar",
+                    "Foo",
+                    "Bar"
+                  ],
+                  "Moniker": "FooBarMoniker",
+                  "ReleaseNotes": "Default release notes",
+                  "ReleaseNotesUrl": "https://DefaultReleaseNotes.net",
+                  "Agreements": [{
+                    "AgreementLabel": "DefaultLabel",
+                    "Agreement": "DefaultText",
+                    "AgreementUrl": "https://DefaultAgreementUrl.net"
+                  }],
+                  "PurchaseUrl": "http://DefaultPurchaseUrl.net",
+                  "InstallationNotes": "Default Installation Notes",
+                  "Documentations": [{
+                    "DocumentLabel": "Default Document Label",
+                    "DocumentUrl": "http://DefaultDocumentUrl.net"
+                  }],
+                  "Icons": [{
+                    "IconUrl": "https://DefaultTestIcon",
+                    "IconFileType": "ico",
+                    "IconResolution": "custom",
+                    "IconTheme": "default",
+                    "IconSha256": "69D84CA8899800A5575CE31798293CD4FEBAB1D734A07C2E51E56A28E0DF8123"
+                  }]
+                },
+                "Channel": "",
+                "Locales": [
+                  {
+                    "PackageLocale": "fr-Fr",
+                    "Publisher": "Foo French",
+                    "PublisherUrl": "http://publisher-fr.net",
+                    "PublisherSupportUrl": "http://publisherSupport-fr.net",
+                    "PrivacyUrl": "http://packagePrivacyUrl-fr.net",
+                    "Author": "FooBar French",
+                    "PackageName": "Bar",
+                    "PackageUrl": "http://packageUrl-fr.net",
+                    "License": "Foo Bar License",
+                    "LicenseUrl": "http://licenseUrl-fr.net",
+                    "Copyright": "Foo Bar Copyright",
+                    "CopyrightUrl": "http://copyrightUrl-fr.net",
+                    "ShortDescription": "Foo bar is a foo bar French.",
+                    "Description": "Foo bar is a placeholder French.",
+                    "Tags": [
+                      "FooBarFr",
+                      "FooFr",
+                      "BarFr"
+                    ],
+                    "ReleaseNotes": "Release notes",
+                    "ReleaseNotesUrl": "https://ReleaseNotes.net",
+                    "Agreements": [{
+                      "AgreementLabel": "Label",
+                      "Agreement": "Text",
+                      "AgreementUrl": "https://AgreementUrl.net"
+                    }],
+                    "PurchaseUrl": "http://purchaseUrl.net",
+                    "InstallationNotes": "Installation Notes",
+                    "Documentations": [{
+                      "DocumentLabel": "Document Label",
+                      "DocumentUrl": "http://documentUrl.net"
+                    }],
+                    "Icons": [{
+                      "IconUrl": "https://testIcon",
+                      "IconFileType": "png",
+                      "IconResolution": "32x32",
+                      "IconTheme": "light",
+                      "IconSha256": "69D84CA8899800A5575CE31798293CD4FEBAB1D734A07C2E51E56A28E0DF8321"
+                    }]
+                  }
+                ],)delimiter") _XPLATSTR(R"delimiter(
+                "Installers": [
+                  {
+                    "InstallerSha256": "011048877dfaef109801b3f3ab2b60afc74f3fc4f7b3430e0c897f5da1df84b6",
+                    "InstallerUrl": "http://foobar.zip",
+                    "Architecture": "x86",
+                    "InstallerLocale": "en-US",
+                    "Platform": [
+                      "Windows.Desktop"
+                    ],
+                    "MinimumOSVersion": "1078",
+                    "InstallerType": "zip",
+                    "Scope": "user",
+                    "InstallModes": [
+                      "interactive"
+                    ],
+                    "InstallerSwitches": {
+                      "Silent": "/s",
+                      "SilentWithProgress": "/s",
+                      "Interactive": "/i",
+                      "InstallLocation": "C:\\Users\\User1",
+                      "Log": "/l",
+                      "Upgrade": "/u",
+                      "Custom": "/custom",
+                      "Repair": "/repair"
+                    },
+                    "InstallerSuccessCodes": [
+                      0
+                    ],
+                    "UpgradeBehavior": "deny",
+                    "Commands": [
+                      "command1"
+                    ],
+                    "Protocols": [
+                       "protocol1"
+                    ],
+                    "FileExtensions": [
+                      ".file-extension"
+                    ],
+                    "Dependencies": {
+                      "WindowsFeatures": [
+                        "feature1"
+                      ],
+                      "WindowsLibraries": [
+                        "library1"
+                      ],
+                      "PackageDependencies": [
+                        {
+                          "PackageIdentifier": "Foo.Baz",
+                          "MinimumVersion": "2.0.0"
+                        }
+                      ],
+                      "ExternalDependencies": [
+                        "FooBarBaz"
+                      ]
+                    },
+                    "ProductCode": "5b6e0f8a-3bbf-4a17-aefd-024c2b3e075d",
+                    "ReleaseDate": "2021-01-01",
+                    "InstallerAbortsTerminal": true,
+                    "InstallLocationRequired": true,
+                    "RequireExplicitUpgrade": true,
+                    "UnsupportedOSArchitectures": [ "arm" ],
+                    "ElevationRequirement": "elevatesSelf",
+                    "AppsAndFeaturesEntries": [{
+                      "DisplayName": "DisplayName",
+                      "DisplayVersion": "DisplayVersion",
+                      "Publisher": "Publisher",
+                      "ProductCode": "ProductCode",
+                      "UpgradeCode": "UpgradeCode",
+                      "InstallerType": "exe"
+                    }],
+                    "Markets" : {
+                      "AllowedMarkets": [ "US" ]
+                    },
+                    "ExpectedReturnCodes": [{
+                      "InstallerReturnCode": 3,
+                      "ReturnResponse": "custom",
+                      "ReturnResponseUrl": "http://returnResponseUrl.net"
+                    }],
+                    "NestedInstallerType": "portable",
+                    "DisplayInstallWarnings": true,
+                    "UnsupportedArguments": [ "log" ],
+                    "NestedInstallerFiles": [{
+                      "RelativeFilePath": "test\\app.exe",
+                      "PortableCommandAlias": "test.exe"
+                    }],
+                    "InstallationMetadata": {
+                      "DefaultInstallLocation": "%TEMP%\\DefaultInstallLocation",
+                      "Files": [{
+                        "RelativeFilePath": "test\\app.exe",
+                        "FileSha256": "011048877dfaef109801b3f3ab2b60afc74f3fc4f7b3430e0c897f5da1df84b6",
+                        "FileType": "launch",
+                        "InvocationParameter": "/parameter",
+                        "DisplayName": "test"
+                      }]
+                    },
+                    "DownloadCommandProhibited": true,
+                    "RepairBehavior": "uninstaller",
+                    "ArchiveBinariesDependOnPath": true
+                  }
+                ]
+              }
+            ]
+          },
+          "ContinuationToken": "abcd"
+        })delimiter");
+        }
+
+        void VerifyLocalizations_AllFields(const AppInstaller::Manifest::Manifest& manifest)
+        {
+            REQUIRE(manifest.DefaultLocalization.Locale == "en-US");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Publisher>() == "Foo");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PublisherUrl>() == "http://publisher.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PublisherSupportUrl>() == "http://publisherSupport.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PrivacyUrl>() == "http://packagePrivacyUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Author>() == "FooBar");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PackageName>() == "Bar");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PackageUrl>() == "http://packageUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::License>() == "Foo Bar License");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::LicenseUrl>() == "http://licenseUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Copyright>() == "Foo Bar Copyright");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::CopyrightUrl>() == "http://copyrightUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::ShortDescription>() == "Foo bar is a foo bar.");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Description>() == "Foo bar is a placeholder.");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Tags>().size() == 3);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Tags>().at(0) == "FooBar");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Tags>().at(1) == "Foo");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Tags>().at(2) == "Bar");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::ReleaseNotes>() == "Default release notes");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::ReleaseNotesUrl>() == "https://DefaultReleaseNotes.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Agreements>().size() == 1);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Agreements>().at(0).Label == "DefaultLabel");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Agreements>().at(0).AgreementText == "DefaultText");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Agreements>().at(0).AgreementUrl == "https://DefaultAgreementUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::PurchaseUrl>() == "http://DefaultPurchaseUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::InstallationNotes>() == "Default Installation Notes");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Documentations>().size() == 1);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Documentations>().at(0).DocumentLabel == "Default Document Label");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Documentations>().at(0).DocumentUrl == "http://DefaultDocumentUrl.net");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().size() == 1);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().at(0).Url == "https://DefaultTestIcon");
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().at(0).FileType == IconFileTypeEnum::Ico);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().at(0).Resolution == IconResolutionEnum::Custom);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().at(0).Theme == IconThemeEnum::Default);
+            REQUIRE(manifest.DefaultLocalization.Get<Localization::Icons>().at(0).Sha256 == AppInstaller::Utility::SHA256::ConvertToBytes("69D84CA8899800A5575CE31798293CD4FEBAB1D734A07C2E51E56A28E0DF8123"));
+
+            REQUIRE(manifest.Localizations.size() == 1);
+            ManifestLocalization frenchLocalization = manifest.Localizations.at(0);
+            REQUIRE(frenchLocalization.Locale == "fr-Fr");
+            REQUIRE(frenchLocalization.Get<Localization::Publisher>() == "Foo French");
+            REQUIRE(frenchLocalization.Get<Localization::PublisherUrl>() == "http://publisher-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::PublisherSupportUrl>() == "http://publisherSupport-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::PrivacyUrl>() == "http://packagePrivacyUrl-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::Author>() == "FooBar French");
+            REQUIRE(frenchLocalization.Get<Localization::PackageName>() == "Bar");
+            REQUIRE(frenchLocalization.Get<Localization::PackageUrl>() == "http://packageUrl-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::License>() == "Foo Bar License");
+            REQUIRE(frenchLocalization.Get<Localization::LicenseUrl>() == "http://licenseUrl-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::Copyright>() == "Foo Bar Copyright");
+            REQUIRE(frenchLocalization.Get<Localization::CopyrightUrl>() == "http://copyrightUrl-fr.net");
+            REQUIRE(frenchLocalization.Get<Localization::ShortDescription>() == "Foo bar is a foo bar French.");
+            REQUIRE(frenchLocalization.Get<Localization::Description>() == "Foo bar is a placeholder French.");
+            REQUIRE(frenchLocalization.Get<Localization::Tags>().size() == 3);
+            REQUIRE(frenchLocalization.Get<Localization::Tags>().at(0) == "FooBarFr");
+            REQUIRE(frenchLocalization.Get<Localization::Tags>().at(1) == "FooFr");
+            REQUIRE(frenchLocalization.Get<Localization::Tags>().at(2) == "BarFr");
+            REQUIRE(frenchLocalization.Get<Localization::ReleaseNotes>() == "Release notes");
+            REQUIRE(frenchLocalization.Get<Localization::ReleaseNotesUrl>() == "https://ReleaseNotes.net");
+            REQUIRE(frenchLocalization.Get<Localization::Agreements>().size() == 1);
+            REQUIRE(frenchLocalization.Get<Localization::Agreements>().at(0).Label == "Label");
+            REQUIRE(frenchLocalization.Get<Localization::Agreements>().at(0).AgreementText == "Text");
+            REQUIRE(frenchLocalization.Get<Localization::Agreements>().at(0).AgreementUrl == "https://AgreementUrl.net");
+            REQUIRE(frenchLocalization.Get<Localization::PurchaseUrl>() == "http://purchaseUrl.net");
+            REQUIRE(frenchLocalization.Get<Localization::InstallationNotes>() == "Installation Notes");
+            REQUIRE(frenchLocalization.Get<Localization::Documentations>().size() == 1);
+            REQUIRE(frenchLocalization.Get<Localization::Documentations>().at(0).DocumentLabel == "Document Label");
+            REQUIRE(frenchLocalization.Get<Localization::Documentations>().at(0).DocumentUrl == "http://documentUrl.net");
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().size() == 1);
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().at(0).Url == "https://testIcon");
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().at(0).FileType == IconFileTypeEnum::Png);
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().at(0).Resolution == IconResolutionEnum::Square32);
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().at(0).Theme == IconThemeEnum::Light);
+            REQUIRE(frenchLocalization.Get<Localization::Icons>().at(0).Sha256 == AppInstaller::Utility::SHA256::ConvertToBytes("69D84CA8899800A5575CE31798293CD4FEBAB1D734A07C2E51E56A28E0DF8321"));
+        }
+
+        void VerifyInstallers_AllFields(const AppInstaller::Manifest::Manifest& manifest)
+        {
+            REQUIRE(manifest.Installers.size() == 1);
+
+            ManifestInstaller actualInstaller = manifest.Installers.at(0);
+            REQUIRE(actualInstaller.Sha256 == AppInstaller::Utility::SHA256::ConvertToBytes("011048877dfaef109801b3f3ab2b60afc74f3fc4f7b3430e0c897f5da1df84b6"));
+            REQUIRE(actualInstaller.Url == "http://foobar.zip");
+            REQUIRE(actualInstaller.Arch == Architecture::X86);
+            REQUIRE(actualInstaller.Locale == "en-US");
+            REQUIRE(actualInstaller.Platform.size() == 1);
+            REQUIRE(actualInstaller.Platform[0] == PlatformEnum::Desktop);
+            REQUIRE(actualInstaller.MinOSVersion == "1078");
+            REQUIRE(actualInstaller.BaseInstallerType == InstallerTypeEnum::Zip);
+            REQUIRE(actualInstaller.Scope == ScopeEnum::User);
+            REQUIRE(actualInstaller.InstallModes.size() == 1);
+            REQUIRE(actualInstaller.InstallModes.at(0) == InstallModeEnum::Interactive);
+            REQUIRE(actualInstaller.Switches.size() == 8);
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Silent) == "/s");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::SilentWithProgress) == "/s");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Interactive) == "/i");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::InstallLocation) == "C:\\Users\\User1");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Log) == "/l");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Update) == "/u");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Custom) == "/custom");
+            REQUIRE(actualInstaller.Switches.at(InstallerSwitchType::Repair) == "/repair");
+            REQUIRE(actualInstaller.InstallerSuccessCodes.size() == 1);
+            REQUIRE(actualInstaller.InstallerSuccessCodes.at(0) == 0);
+            REQUIRE(actualInstaller.UpdateBehavior == UpdateBehaviorEnum::Deny);
+            REQUIRE(actualInstaller.Commands.at(0) == "command1");
+            REQUIRE(actualInstaller.Protocols.at(0) == "protocol1");
+            REQUIRE(actualInstaller.FileExtensions.at(0) == ".file-extension");
+            REQUIRE(actualInstaller.Dependencies.HasExactDependency(DependencyType::WindowsFeature, "feature1"));
+            REQUIRE(actualInstaller.Dependencies.HasExactDependency(DependencyType::WindowsLibrary, "library1"));
+            REQUIRE(actualInstaller.Dependencies.HasExactDependency(DependencyType::Package, "Foo.Baz", "2.0.0"));
+            REQUIRE(actualInstaller.Dependencies.HasExactDependency(DependencyType::External, "FooBarBaz"));
+            REQUIRE(actualInstaller.PackageFamilyName == "");
+            REQUIRE(actualInstaller.ProductCode == "5b6e0f8a-3bbf-4a17-aefd-024c2b3e075d");
+            REQUIRE(actualInstaller.ReleaseDate == "2021-01-01");
+            REQUIRE(actualInstaller.InstallerAbortsTerminal);
+            REQUIRE(actualInstaller.InstallLocationRequired);
+            REQUIRE(actualInstaller.RequireExplicitUpgrade);
+            REQUIRE(actualInstaller.ElevationRequirement == ElevationRequirementEnum::ElevatesSelf);
+            REQUIRE(actualInstaller.UnsupportedOSArchitectures.size() == 1);
+            REQUIRE(actualInstaller.UnsupportedOSArchitectures.at(0) == Architecture::Arm);
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.size() == 1);
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).DisplayName == "DisplayName");
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).DisplayVersion == "DisplayVersion");
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).Publisher == "Publisher");
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).ProductCode == "ProductCode");
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).UpgradeCode == "UpgradeCode");
+            REQUIRE(actualInstaller.AppsAndFeaturesEntries.at(0).InstallerType == InstallerTypeEnum::Exe);
+            REQUIRE(actualInstaller.Markets.AllowedMarkets.size() == 1);
+            REQUIRE(actualInstaller.Markets.AllowedMarkets.at(0) == "US");
+            REQUIRE(actualInstaller.ExpectedReturnCodes.at(3).ReturnResponseEnum == ExpectedReturnCodeEnum::Custom);
+            REQUIRE(actualInstaller.ExpectedReturnCodes.at(3).ReturnResponseUrl == "http://returnResponseUrl.net");
+            REQUIRE(actualInstaller.NestedInstallerType == InstallerTypeEnum::Portable);
+            REQUIRE(actualInstaller.DisplayInstallWarnings);
+            REQUIRE(actualInstaller.UnsupportedArguments.size() == 1);
+            REQUIRE(actualInstaller.UnsupportedArguments.at(0) == UnsupportedArgumentEnum::Log);
+            REQUIRE(actualInstaller.NestedInstallerFiles.size() == 1);
+            REQUIRE(actualInstaller.NestedInstallerFiles.at(0).RelativeFilePath == "test\\app.exe");
+            REQUIRE(actualInstaller.NestedInstallerFiles.at(0).PortableCommandAlias == "test.exe");
+            REQUIRE(actualInstaller.InstallationMetadata.DefaultInstallLocation == "%TEMP%\\DefaultInstallLocation");
+            REQUIRE(actualInstaller.InstallationMetadata.Files.size() == 1);
+            REQUIRE(actualInstaller.InstallationMetadata.Files.at(0).RelativeFilePath == "test\\app.exe");
+            REQUIRE(actualInstaller.InstallationMetadata.Files.at(0).FileType == InstalledFileTypeEnum::Launch);
+            REQUIRE(actualInstaller.InstallationMetadata.Files.at(0).FileSha256 == AppInstaller::Utility::SHA256::ConvertToBytes("011048877dfaef109801b3f3ab2b60afc74f3fc4f7b3430e0c897f5da1df84b6"));
+            REQUIRE(actualInstaller.InstallationMetadata.Files.at(0).InvocationParameter == "/parameter");
+            REQUIRE(actualInstaller.InstallationMetadata.Files.at(0).DisplayName == "test");
+            REQUIRE(actualInstaller.DownloadCommandProhibited);
+            REQUIRE(actualInstaller.RepairBehavior == RepairBehaviorEnum::Uninstaller);
+            REQUIRE(actualInstaller.ArchiveBinariesDependOnPath);
+        }
+    };
+}
+
+TEST_CASE("GetManifests_GoodResponse_V1_9", "[RestSource][Interface_1_9]")
+{
+    GoodManifest_AllFields sampleManifest;
+    utility::string_t sample = sampleManifest.GetSampleManifest_AllFields();
+    HttpClientHelper helper{ GetTestRestRequestHandler(web::http::status_codes::OK, std::move(sample)) };
+    Interface v1_9{ TestRestUriString, std::move(helper), {} };
+    std::vector<Manifest> manifests = v1_9.GetManifests("Foo.Bar");
+    REQUIRE(manifests.size() == 1);
+
+    // Verify manifest is populated
+    Manifest& manifest = manifests[0];
+    REQUIRE(manifest.Id == "Foo.Bar");
+    REQUIRE(manifest.Version == "3.0.0abc");
+    REQUIRE(manifest.Moniker == "FooBarMoniker");
+    REQUIRE(manifest.Channel == "");
+    REQUIRE(manifest.ManifestVersion == AppInstaller::Manifest::ManifestVer{ "1.9.0" });
+    sampleManifest.VerifyLocalizations_AllFields(manifest);
+    sampleManifest.VerifyInstallers_AllFields(manifest);
+}
diff --git a/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj b/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj
index f1dc17c57f..d70fb30e56 100644
--- a/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj
+++ b/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj
@@ -451,6 +451,8 @@
     <ClInclude Include="Rest\Schema\1_6\Json\ManifestDeserializer.h" />
     <ClInclude Include="Rest\Schema\1_7\Interface.h" />
     <ClInclude Include="Rest\Schema\1_7\Json\ManifestDeserializer.h" />
+    <ClInclude Include="Rest\Schema\1_9\Interface.h" />
+    <ClInclude Include="Rest\Schema\1_9\Json\ManifestDeserializer.h" />
     <ClInclude Include="Rest\Schema\AuthenticationInfoParser.h" />
     <ClInclude Include="Rest\Schema\CommonRestConstants.h" />
     <ClInclude Include="Rest\Schema\InformationResponseDeserializer.h" />
@@ -544,6 +546,8 @@
     <ClCompile Include="Rest\Schema\1_6\RestInterface_1_6.cpp" />
     <ClCompile Include="Rest\Schema\1_7\Json\ManifestDeserializer_1_7.cpp" />
     <ClCompile Include="Rest\Schema\1_7\RestInterface_1_7.cpp" />
+    <ClCompile Include="Rest\Schema\1_9\Json\ManifestDeserializer_1_9.cpp" />
+    <ClCompile Include="Rest\Schema\1_9\RestInterface_1_9.cpp" />
     <ClCompile Include="Rest\Schema\AuthenticationInfoParser.cpp" />
     <ClCompile Include="Rest\Schema\InformationResponseDeserializer.cpp" />
     <ClCompile Include="Rest\Schema\SearchRequestComposer.cpp" />
diff --git a/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj.filters b/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj.filters
index 5abac094cf..1b91d82bcf 100644
--- a/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj.filters
+++ b/src/AppInstallerRepositoryCore/AppInstallerRepositoryCore.vcxproj.filters
@@ -103,6 +103,12 @@
     <Filter Include="Microsoft\Schema\2_0">
       <UniqueIdentifier>{34442899-29e5-4183-96ba-a1e8740146be}</UniqueIdentifier>
     </Filter>
+    <Filter Include="Rest\Schema\1_9">
+      <UniqueIdentifier>{8edd7018-8836-4b15-84c1-998391e19038}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Rest\Schema\1_9\Json">
+      <UniqueIdentifier>{7464e3ff-7a60-4bb6-8806-70562382043b}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="pch.h">
@@ -462,6 +468,12 @@
     <ClInclude Include="Microsoft\SQLiteIndexSourceV2.h">
       <Filter>Microsoft</Filter>
     </ClInclude>
+    <ClInclude Include="Rest\Schema\1_9\Json\ManifestDeserializer.h">
+      <Filter>Rest\Schema\1_9\Json</Filter>
+    </ClInclude>
+    <ClInclude Include="Rest\Schema\1_9\Interface.h">
+      <Filter>Rest\Schema\1_9</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="pch.cpp">
@@ -722,6 +734,12 @@
     <ClCompile Include="Microsoft\SQLiteIndexSourceV2.cpp">
       <Filter>Microsoft</Filter>
     </ClCompile>
+    <ClCompile Include="Rest\Schema\1_9\Json\ManifestDeserializer_1_9.cpp">
+      <Filter>Rest\Schema\1_9\Json</Filter>
+    </ClCompile>
+    <ClCompile Include="Rest\Schema\1_9\RestInterface_1_9.cpp">
+      <Filter>Rest\Schema\1_9</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="PropertySheet.props" />
diff --git a/src/AppInstallerRepositoryCore/ManifestJSONParser.cpp b/src/AppInstallerRepositoryCore/ManifestJSONParser.cpp
index 79877c0edc..d30a871cdf 100644
--- a/src/AppInstallerRepositoryCore/ManifestJSONParser.cpp
+++ b/src/AppInstallerRepositoryCore/ManifestJSONParser.cpp
@@ -8,6 +8,7 @@
 #include "Rest/Schema/1_5/Json/ManifestDeserializer.h"
 #include "Rest/Schema/1_6/Json/ManifestDeserializer.h"
 #include "Rest/Schema/1_7/Json/ManifestDeserializer.h"
+#include "Rest/Schema/1_9/Json/ManifestDeserializer.h"
 
 namespace AppInstaller::Repository::JSON
 {
@@ -46,10 +47,14 @@ namespace AppInstaller::Repository::JSON
             {
                 m_pImpl->m_deserializer = std::make_unique<Rest::Schema::V1_6::Json::ManifestDeserializer>();
             }
-            else
+            else if (parts.size() > 1 && parts[1].Integer < 9)
             {
                 m_pImpl->m_deserializer = std::make_unique<Rest::Schema::V1_7::Json::ManifestDeserializer>();
             }
+            else
+            {
+                m_pImpl->m_deserializer = std::make_unique<Rest::Schema::V1_9::Json::ManifestDeserializer>();
+            }
         }
         else
         {
diff --git a/src/AppInstallerRepositoryCore/Rest/RestClient.cpp b/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
index 602d1fbfeb..c7e796bb16 100644
--- a/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
+++ b/src/AppInstallerRepositoryCore/Rest/RestClient.cpp
@@ -8,6 +8,7 @@
 #include "Rest/Schema/1_5/Interface.h"
 #include "Rest/Schema/1_6/Interface.h"
 #include "Rest/Schema/1_7/Interface.h"
+#include "Rest/Schema/1_9/Interface.h"
 #include "Rest/Schema/InformationResponseDeserializer.h"
 #include "Rest/Schema/CommonRestConstants.h"
 #include <winget/HttpClientHelper.h>
@@ -22,7 +23,7 @@ using namespace AppInstaller::Http;
 namespace AppInstaller::Repository::Rest
 {
     // Supported versions
-    std::set<Version> WingetSupportedContracts = { Version_1_0_0, Version_1_1_0, Version_1_4_0, Version_1_5_0, Version_1_6_0, Version_1_7_0 };
+    std::set<Version> WingetSupportedContracts = { Version_1_0_0, Version_1_1_0, Version_1_4_0, Version_1_5_0, Version_1_6_0, Version_1_7_0, Version_1_9_0 };
 
     constexpr std::string_view WindowsPackageManagerHeader = "Windows-Package-Manager"sv;
     constexpr size_t WindowsPackageManagerHeaderMaxLength = 1024;
@@ -176,6 +177,10 @@ namespace AppInstaller::Repository::Rest
         {
             return std::make_unique<Schema::V1_7::Interface>(api, helper, information, additionalHeaders, authArgs);
         }
+        else if (version == Version_1_9_0)
+        {
+            return std::make_unique<Schema::V1_9::Interface>(api, helper, information, additionalHeaders, authArgs);
+        }
 
         THROW_HR(APPINSTALLER_CLI_ERROR_RESTSOURCE_INVALID_VERSION);
     }
diff --git a/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Interface.h b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Interface.h
new file mode 100644
index 0000000000..d9fb755c45
--- /dev/null
+++ b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Interface.h
@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+#pragma once
+#include "Rest/Schema/1_7/Interface.h"
+
+namespace AppInstaller::Repository::Rest::Schema::V1_9
+{
+    // Interface to this schema version exposed through IRestClient.
+    struct Interface : public V1_7::Interface
+    {
+        Interface(const std::string& restApi, const Http::HttpClientHelper& helper, IRestClient::Information information, const Http::HttpClientHelper::HttpRequestHeaders& additionalHeaders = {}, Authentication::AuthenticationArguments authArgs = {});
+
+        Interface(const Interface&) = delete;
+        Interface& operator=(const Interface&) = delete;
+
+        Interface(Interface&&) = default;
+        Interface& operator=(Interface&&) = default;
+
+        Utility::Version GetVersion() const override;
+    };
+}
diff --git a/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer.h b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer.h
new file mode 100644
index 0000000000..09dd1da76d
--- /dev/null
+++ b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer.h
@@ -0,0 +1,17 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+#pragma once
+#include "Rest/Schema/1_7/Json/ManifestDeserializer.h"
+
+namespace AppInstaller::Repository::Rest::Schema::V1_9::Json
+{
+    // Manifest Deserializer.
+    struct ManifestDeserializer : public V1_7::Json::ManifestDeserializer
+    {
+    protected:
+
+        std::optional<Manifest::ManifestInstaller> DeserializeInstaller(const web::json::value& installerJsonObject) const override;
+
+        Manifest::ManifestVer GetManifestVersion() const override;
+    };
+}
diff --git a/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer_1_9.cpp b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer_1_9.cpp
new file mode 100644
index 0000000000..714d3fe048
--- /dev/null
+++ b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/Json/ManifestDeserializer_1_9.cpp
@@ -0,0 +1,35 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+#include "pch.h"
+#include "ManifestDeserializer.h"
+#include <winget/JsonUtil.h>
+
+using namespace AppInstaller::Manifest;
+
+namespace AppInstaller::Repository::Rest::Schema::V1_9::Json
+{
+    namespace
+    {
+        // Installer
+        constexpr std::string_view ArchiveBinariesDependOnPath = "ArchiveBinariesDependOnPath"sv;
+    }
+
+    std::optional<Manifest::ManifestInstaller> ManifestDeserializer::DeserializeInstaller(const web::json::value& installerJsonObject) const
+    {
+        auto result = V1_7::Json::ManifestDeserializer::DeserializeInstaller(installerJsonObject);
+
+        if (result)
+        {
+            auto& installer = result.value();
+
+            installer.ArchiveBinariesDependOnPath = JSON::GetRawBoolValueFromJsonNode(installerJsonObject, JSON::GetUtilityString(ArchiveBinariesDependOnPath)).value_or(false);
+        }
+
+        return result;
+    }
+
+    Manifest::ManifestVer ManifestDeserializer::GetManifestVersion() const
+    {
+        return Manifest::s_ManifestVersionV1_9;
+    }
+}
diff --git a/src/AppInstallerRepositoryCore/Rest/Schema/1_9/RestInterface_1_9.cpp b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/RestInterface_1_9.cpp
new file mode 100644
index 0000000000..b741b96530
--- /dev/null
+++ b/src/AppInstallerRepositoryCore/Rest/Schema/1_9/RestInterface_1_9.cpp
@@ -0,0 +1,26 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+#include "pch.h"
+#include "Rest/Schema/1_9/Interface.h"
+#include "Rest/Schema/CommonRestConstants.h"
+#include "Rest/Schema/IRestClient.h"
+#include <winget/HttpClientHelper.h>
+#include <winget/JsonUtil.h>
+
+namespace AppInstaller::Repository::Rest::Schema::V1_9
+{
+    Interface::Interface(
+        const std::string& restApi,
+        const Http::HttpClientHelper& httpClientHelper,
+        IRestClient::Information information,
+        const Http::HttpClientHelper::HttpRequestHeaders& additionalHeaders,
+        Authentication::AuthenticationArguments authArgs) : V1_7::Interface(restApi, httpClientHelper, std::move(information), additionalHeaders, std::move(authArgs))
+    {
+        m_requiredRestApiHeaders[JSON::GetUtilityString(ContractVersion)] = JSON::GetUtilityString(Version_1_9_0.ToString());
+    }
+
+    Utility::Version Interface::GetVersion() const
+    {
+        return Version_1_9_0;
+    }
+}
diff --git a/src/AppInstallerRepositoryCore/Rest/Schema/CommonRestConstants.h b/src/AppInstallerRepositoryCore/Rest/Schema/CommonRestConstants.h
index ab3ab2002e..6ee979b7aa 100644
--- a/src/AppInstallerRepositoryCore/Rest/Schema/CommonRestConstants.h
+++ b/src/AppInstallerRepositoryCore/Rest/Schema/CommonRestConstants.h
@@ -12,6 +12,7 @@ namespace AppInstaller::Repository::Rest::Schema
     const Utility::Version Version_1_5_0{ "1.5.0" };
     const Utility::Version Version_1_6_0{ "1.6.0" };
     const Utility::Version Version_1_7_0{ "1.7.0" };
+    const Utility::Version Version_1_9_0{ "1.9.0" };
 
     // General API response constants
     constexpr std::string_view Data = "Data"sv;
diff --git a/src/WinGetUtilInterop.UnitTests/WinGetUtilInterop.UnitTests.csproj b/src/WinGetUtilInterop.UnitTests/WinGetUtilInterop.UnitTests.csproj
index b3fd2c5990..618c708bc4 100644
--- a/src/WinGetUtilInterop.UnitTests/WinGetUtilInterop.UnitTests.csproj
+++ b/src/WinGetUtilInterop.UnitTests/WinGetUtilInterop.UnitTests.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
@@ -94,6 +94,9 @@
     <None Update="TestCollateral\V1_7ManifestMerged.yaml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Update="TestCollateral\V1_9ManifestMerged.yaml">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
     <None Update="xunit.runner.json">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>