diff --git a/BuildToolsVersion.txt b/BuildToolsVersion.txt
index 0a6e07e7f5cc..c6b5d8c746a7 100644
--- a/BuildToolsVersion.txt
+++ b/BuildToolsVersion.txt
@@ -1 +1 @@
-2.1.0-preview2-02507-01
+2.1.0-preview2-02509-01
diff --git a/dependencies.props b/dependencies.props
index 536bcb7f0c8c..29ae5048a438 100644
--- a/dependencies.props
+++ b/dependencies.props
@@ -9,15 +9,15 @@
        These ref versions are pulled from https://github.com/dotnet/versions.
   -->
   <PropertyGroup>
-    <CoreFxCurrentRef>eaf435760069c169cfbf6ed1c65b44f47bc3e4ca</CoreFxCurrentRef>
-    <CoreClrCurrentRef>fded6196b42fb66aa3ee8ffd800c1b1b5d240f8c</CoreClrCurrentRef>
-    <CoreSetupCurrentRef>aaade3f730179740174d13d0547a864d3fdc3f8e</CoreSetupCurrentRef>
+    <CoreFxCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</CoreFxCurrentRef>
+    <CoreClrCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</CoreClrCurrentRef>
+    <CoreSetupCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</CoreSetupCurrentRef>
     <ExternalCurrentRef>96dc7805f5df4a70a55783964ce69dcd91bfca80</ExternalCurrentRef>
-    <ProjectNTfsCurrentRef>d9a905c947355d562b2571d5aa46dfc20ac4dd63</ProjectNTfsCurrentRef>
-    <ProjectNTfsTestILCCurrentRef>d9a905c947355d562b2571d5aa46dfc20ac4dd63</ProjectNTfsTestILCCurrentRef>
+    <ProjectNTfsCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</ProjectNTfsCurrentRef>
+    <ProjectNTfsTestILCCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</ProjectNTfsTestILCCurrentRef>
     <SniCurrentRef>8bd1ec5fac9f0eec34ff6b34b1d878b4359e02dd</SniCurrentRef>
     <StandardCurrentRef>6298244e25cf84d91e3cda9627315f2425274624</StandardCurrentRef>
-    <BuildToolsCurrentRef>738604f6623377659e95ddddca9f1a4a99ea02f2</BuildToolsCurrentRef>
+    <BuildToolsCurrentRef>2ed83aee4d64fcf9a954294bdbae31aed09e0d3a</BuildToolsCurrentRef>
   </PropertyGroup>
 
   <!-- Product dependency versions. -->
@@ -31,16 +31,16 @@
 
   <!-- Tests/infrastructure dependency versions. -->
   <PropertyGroup>
-    <CoreFxExpectedPrerelease>preview2-26202-05</CoreFxExpectedPrerelease>
-    <MicrosoftNETCorePlatformsPackageVersion>2.1.0-preview2-26202-05</MicrosoftNETCorePlatformsPackageVersion>
-    <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>2.1.0-preview2-26205-05</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
-    <ProjectNTfsExpectedPrerelease>beta-26207-00</ProjectNTfsExpectedPrerelease>
-    <ProjectNTfsTestILCExpectedPrerelease>beta-26207-00</ProjectNTfsTestILCExpectedPrerelease>
-    <ProjectNTfsTestILCPackageVersion>1.0.0-beta-26207-00</ProjectNTfsTestILCPackageVersion>
-    <MicrosoftNETCoreDotNetHostPackageVersion>2.1.0-preview2-26131-06</MicrosoftNETCoreDotNetHostPackageVersion>
-    <MicrosoftNETCoreDotNetHostPolicyPackageVersion>2.1.0-preview2-26131-06</MicrosoftNETCoreDotNetHostPolicyPackageVersion>
-    <MicrosoftNETCoreAppPackageVersion>2.1.0-preview2-26131-06</MicrosoftNETCoreAppPackageVersion>
-    <MicrosoftDotNetPlatformAbstractionsPackageVersion>2.1.0-preview2-26131-06</MicrosoftDotNetPlatformAbstractionsPackageVersion>
+    <CoreFxExpectedPrerelease>preview2-26210-01</CoreFxExpectedPrerelease>
+    <MicrosoftNETCorePlatformsPackageVersion>2.1.0-preview2-26210-01</MicrosoftNETCorePlatformsPackageVersion>
+    <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>2.1.0-preview2-26209-08</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
+    <ProjectNTfsExpectedPrerelease>beta-26209-02</ProjectNTfsExpectedPrerelease>
+    <ProjectNTfsTestILCExpectedPrerelease>beta-26209-02</ProjectNTfsTestILCExpectedPrerelease>
+    <ProjectNTfsTestILCPackageVersion>1.0.0-beta-26209-02</ProjectNTfsTestILCPackageVersion>
+    <MicrosoftNETCoreDotNetHostPackageVersion>2.1.0-preview2-26209-04</MicrosoftNETCoreDotNetHostPackageVersion>
+    <MicrosoftNETCoreDotNetHostPolicyPackageVersion>2.1.0-preview2-26209-04</MicrosoftNETCoreDotNetHostPolicyPackageVersion>
+    <MicrosoftNETCoreAppPackageVersion>2.1.0-preview2-26209-04</MicrosoftNETCoreAppPackageVersion>
+    <MicrosoftDotNetPlatformAbstractionsPackageVersion>2.1.0-preview2-26209-04</MicrosoftDotNetPlatformAbstractionsPackageVersion>
 
     <!-- CoreFX-built SNI identity package -->
     <RuntimeNativeSystemDataSqlClientSniPackageVersion>4.4.0</RuntimeNativeSystemDataSqlClientSniPackageVersion>
@@ -48,13 +48,13 @@
     <AppXRunnerVersion>1.0.3-prerelease-00921-01</AppXRunnerVersion>
     <XunitPerfAnalysisPackageVersion>1.0.0-beta-build0015</XunitPerfAnalysisPackageVersion>
     <TraceEventPackageVersion>1.0.3-alpha-experimental</TraceEventPackageVersion>
-    <XunitNetcoreExtensionsVersion>2.1.0-preview2-02507-01</XunitNetcoreExtensionsVersion>
+    <XunitNetcoreExtensionsVersion>2.1.0-preview2-02509-01</XunitNetcoreExtensionsVersion>
   </PropertyGroup>
 
   <!-- Package versions used as toolsets -->
   <PropertyGroup>
     <FeedTasksPackage>Microsoft.DotNet.Build.Tasks.Feed</FeedTasksPackage>
-    <FeedTasksPackageVersion>2.1.0-preview2-02507-01</FeedTasksPackageVersion>
+    <FeedTasksPackageVersion>2.1.0-preview2-02509-01</FeedTasksPackageVersion>
   </PropertyGroup>
 
   <!-- Package dependency verification/auto-upgrade configuration. -->
diff --git a/external/test-runtime/optional.json b/external/test-runtime/optional.json
index 5a1932212869..d8d152fabb68 100644
--- a/external/test-runtime/optional.json
+++ b/external/test-runtime/optional.json
@@ -3,9 +3,9 @@
     "net45": {
       "dependencies": {
         "Microsoft.DotNet.IBCMerge": "4.6.0-alpha-00001",
-        "TestILC.amd64ret": "1.0.0-beta-26207-00",
-        "TestILC.armret": "1.0.0-beta-26207-00",
-        "TestILC.x86ret": "1.0.0-beta-26207-00"
+        "TestILC.amd64ret": "1.0.0-beta-26209-02",
+        "TestILC.armret": "1.0.0-beta-26209-02",
+        "TestILC.x86ret": "1.0.0-beta-26209-02"
       }
     }
   }
diff --git a/tools-local/ILAsmVersion.txt b/tools-local/ILAsmVersion.txt
index b6b16633e9e7..d7ffa65c94c2 100644
--- a/tools-local/ILAsmVersion.txt
+++ b/tools-local/ILAsmVersion.txt
@@ -1 +1 @@
-2.1.0-preview2-26205-05
\ No newline at end of file
+2.1.0-preview2-26209-08
\ No newline at end of file