diff --git a/NuGet.config b/NuGet.config
index 6eb27fc4..7b7b765e 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -1,8 +1,10 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
     <add key="dotnet-core" value="https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json" />
+    <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
+    <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
   </packageSources>
 </configuration>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index bf0138e9..ddffc212 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -3,9 +3,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19257.7">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.20230.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>bda52d7619f9420de46f2c39ffc972864bbcab63</Sha>
+      <Sha>5fd50687c9a9f39bd2ee8221165ea9c1b3f565d9</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 18d664dd..dc954bcc 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -6,6 +6,6 @@
     <RestoreSources>
       $(RestoreSources);
       https://api.nuget.org/v3/index.json;
-    </RestoreSources> 
+    </RestoreSources>
   </PropertyGroup>
 </Project>
diff --git a/eng/common/templates/post-build/post-build.yml b/eng/common/templates/post-build/post-build.yml
index 3c69186f..d916c220 100644
--- a/eng/common/templates/post-build/post-build.yml
+++ b/eng/common/templates/post-build/post-build.yml
@@ -365,4 +365,28 @@ stages:
     channelId: 760
     transportFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-transport/nuget/v3/index.json'
     shippingFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-symbols/nuget/v3/index.json'
+    
+- template: \eng\common\templates\post-build\channels\generic-public-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_314xx_Publishing'
+    channelName: '.NET Core SDK 3.1.4xx'
+    channelId: 921
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1/nuget/v3/index.json'
+    symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet3.1-symbols/nuget/v3/index.json'
+
+- template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
+  parameters:
+    artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
+    publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
+    symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
+    stageName: 'NETCore_SDK_314xx_Internal_Publishing'
+    channelName: '.NET Core SDK 3.1.4xx Internal'
+    channelId: 922
+    transportFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-transport/nuget/v3/index.json'
+    shippingFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal/nuget/v3/index.json'
     symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/_packaging/dotnet3.1-internal-symbols/nuget/v3/index.json'
\ No newline at end of file
diff --git a/eng/common/tools.sh b/eng/common/tools.sh
index 94965a8f..acbb0c5b 100755
--- a/eng/common/tools.sh
+++ b/eng/common/tools.sh
@@ -210,7 +210,14 @@ function InstallDotNet {
 
       local runtimeSourceFeedKey=''
       if [[ -n "${7:-}" ]]; then
-        decodedFeedKey=`echo $7 | base64 --decode`
+        # The 'base64' binary on alpine uses '-d' and doesn't support '--decode'
+        # '-d'. To work around this, do a simple detection and switch the parameter
+        # accordingly.
+        decodeArg="--decode"
+        if base64 --help 2>&1 | grep -q "BusyBox"; then
+            decodeArg="-d"
+        fi
+        decodedFeedKey=`echo $7 | base64 $decodeArg`
         runtimeSourceFeedKey="--feed-credential $decodedFeedKey"
       fi
 
diff --git a/global.json b/global.json
index 4d3e0b18..544ff1aa 100644
--- a/global.json
+++ b/global.json
@@ -3,6 +3,6 @@
     "dotnet": "3.1.101"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.19459.10"
+    "Microsoft.DotNet.Arcade.Sdk": "1.0.0-beta.20230.5"
   }
 }