diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 3113cbd68c..4137d2ce10 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -13,37 +13,37 @@
       <Uri>https://github.com/dotnet/blazor</Uri>
       <Sha>cc449601d638ffaab58ae9487f0fd010bb178a12</Sha>
     </Dependency>
-    <Dependency Name="dotnet-ef" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="dotnet-ef" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.InMemory" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.InMemory" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.Relational" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.Relational" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.Sqlite" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.Sqlite" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.Tools" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.Tools" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.EntityFrameworkCore.Design" Version="5.0.0-rc.1.20419.5">
+    <Dependency Name="Microsoft.EntityFrameworkCore.Design" Version="5.0.0-rc.1.20419.12">
       <Uri>https://github.com/dotnet/efcore</Uri>
-      <Sha>897dc03d976fa2c115c81c867c074c6cf5ece282</Sha>
+      <Sha>cc65d1103869f14e6984641456439759b9be9807</Sha>
     </Dependency>
     <Dependency Name="Microsoft.Extensions.Caching.Abstractions" Version="5.0.0-rc.1.20416.7">
       <Uri>https://github.com/dotnet/runtime</Uri>
@@ -309,13 +309,13 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>0862d48a9c9fbda879206b194a16d8e607deac42</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.20411.8">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="5.0.0-beta.20417.6">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>ecec08a0eebbd92bb9538e351d475582551d9092</Sha>
+      <Sha>83fda4b3f6d93e713749fd1b27c4a6d40b118b13</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="5.0.0-beta.20411.8">
+    <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="5.0.0-beta.20417.6">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>ecec08a0eebbd92bb9538e351d475582551d9092</Sha>
+      <Sha>83fda4b3f6d93e713749fd1b27c4a6d40b118b13</Sha>
     </Dependency>
     <Dependency Name="Microsoft.Net.Compilers.Toolset" Version="3.8.0-2.20407.3">
       <Uri>https://github.com/dotnet/roslyn</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index ac700a9889..38d54fb3b5 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -133,14 +133,14 @@
     <!-- Packages from dotnet/blazor -->
     <MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion>3.2.0</MicrosoftAspNetCoreComponentsWebAssemblyRuntimePackageVersion>
     <!-- Packages from dotnet/efcore -->
-    <dotnetefPackageVersion>5.0.0-rc.1.20419.5</dotnetefPackageVersion>
-    <MicrosoftEntityFrameworkCoreInMemoryPackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreInMemoryPackageVersion>
-    <MicrosoftEntityFrameworkCoreRelationalPackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreRelationalPackageVersion>
-    <MicrosoftEntityFrameworkCoreSqlitePackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreSqlitePackageVersion>
-    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
-    <MicrosoftEntityFrameworkCoreToolsPackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreToolsPackageVersion>
-    <MicrosoftEntityFrameworkCorePackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCorePackageVersion>
-    <MicrosoftEntityFrameworkCoreDesignPackageVersion>5.0.0-rc.1.20419.5</MicrosoftEntityFrameworkCoreDesignPackageVersion>
+    <dotnetefPackageVersion>5.0.0-rc.1.20419.12</dotnetefPackageVersion>
+    <MicrosoftEntityFrameworkCoreInMemoryPackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreInMemoryPackageVersion>
+    <MicrosoftEntityFrameworkCoreRelationalPackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreRelationalPackageVersion>
+    <MicrosoftEntityFrameworkCoreSqlitePackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreSqlitePackageVersion>
+    <MicrosoftEntityFrameworkCoreSqlServerPackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreSqlServerPackageVersion>
+    <MicrosoftEntityFrameworkCoreToolsPackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreToolsPackageVersion>
+    <MicrosoftEntityFrameworkCorePackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCorePackageVersion>
+    <MicrosoftEntityFrameworkCoreDesignPackageVersion>5.0.0-rc.1.20419.12</MicrosoftEntityFrameworkCoreDesignPackageVersion>
   </PropertyGroup>
   <!--
 
diff --git a/eng/common/cross/toolchain.cmake b/eng/common/cross/toolchain.cmake
index 2566707997..137736c0a2 100644
--- a/eng/common/cross/toolchain.cmake
+++ b/eng/common/cross/toolchain.cmake
@@ -19,7 +19,9 @@ if(TARGET_ARCH_NAME STREQUAL "armel")
   endif()
 elseif(TARGET_ARCH_NAME STREQUAL "arm")
   set(CMAKE_SYSTEM_PROCESSOR armv7l)
-  if(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/armv6-alpine-linux-musleabihf)
+  if(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/armv7-alpine-linux-musleabihf)
+    set(TOOLCHAIN "armv7-alpine-linux-musleabihf")
+  elseif(EXISTS ${CROSS_ROOTFS}/usr/lib/gcc/armv6-alpine-linux-musleabihf)
     set(TOOLCHAIN "armv6-alpine-linux-musleabihf")
   else()
     set(TOOLCHAIN "arm-linux-gnueabihf")
diff --git a/eng/common/templates/post-build/post-build.yml b/eng/common/templates/post-build/post-build.yml
index 0e79a546b5..e814d5e033 100644
--- a/eng/common/templates/post-build/post-build.yml
+++ b/eng/common/templates/post-build/post-build.yml
@@ -39,6 +39,7 @@ parameters:
   NetEngLatestChannelId: 2
   NetEngValidationChannelId: 9
   NetDev5ChannelId: 131
+  NetDev6ChannelId: 1296
   GeneralTestingChannelId: 529
   NETCoreToolingDevChannelId: 548
   NETCoreToolingReleaseChannelId: 549
@@ -46,7 +47,6 @@ parameters:
   NETCoreExperimentalChannelId: 562
   NetEngServicesIntChannelId: 678
   NetEngServicesProdChannelId: 679
-  Net5Preview7ChannelId: 1065
   Net5Preview8ChannelId: 1155
   Net5RC1ChannelId: 1157
   NetCoreSDK313xxChannelId: 759
@@ -115,7 +115,7 @@ stages:
           inputs:
             filePath: $(Build.SourcesDirectory)/eng/common/post-build/check-channel-consistency.ps1
             arguments: -PromoteToChannels "$(TargetChannels)"
-              -AvailableChannelIds ${{parameters.NetEngLatestChannelId}},${{parameters.NetEngValidationChannelId}},${{parameters.NetDev5ChannelId}},${{parameters.GeneralTestingChannelId}},${{parameters.NETCoreToolingDevChannelId}},${{parameters.NETCoreToolingReleaseChannelId}},${{parameters.NETInternalToolingChannelId}},${{parameters.NETCoreExperimentalChannelId}},${{parameters.NetEngServicesIntChannelId}},${{parameters.NetEngServicesProdChannelId}},${{parameters.Net5Preview7ChannelId}},${{parameters.Net5Preview8ChannelId}},${{parameters.Net5RC1ChannelId}},${{parameters.NetCoreSDK313xxChannelId}},${{parameters.NetCoreSDK313xxInternalChannelId}},${{parameters.NetCoreSDK314xxChannelId}},${{parameters.NetCoreSDK314xxInternalChannelId}},${{parameters.VS166ChannelId}},${{parameters.VS167ChannelId}},${{parameters.VS168ChannelId}},${{parameters.VSMasterChannelId}}
+              -AvailableChannelIds ${{parameters.NetEngLatestChannelId}},${{parameters.NetEngValidationChannelId}},${{parameters.NetDev5ChannelId}},${{parameters.NetDev6ChannelId}},${{parameters.GeneralTestingChannelId}},${{parameters.NETCoreToolingDevChannelId}},${{parameters.NETCoreToolingReleaseChannelId}},${{parameters.NETInternalToolingChannelId}},${{parameters.NETCoreExperimentalChannelId}},${{parameters.NetEngServicesIntChannelId}},${{parameters.NetEngServicesProdChannelId}},${{parameters.Net5Preview8ChannelId}},${{parameters.Net5RC1ChannelId}},${{parameters.NetCoreSDK313xxChannelId}},${{parameters.NetCoreSDK313xxInternalChannelId}},${{parameters.NetCoreSDK314xxChannelId}},${{parameters.NetCoreSDK314xxInternalChannelId}},${{parameters.VS166ChannelId}},${{parameters.VS167ChannelId}},${{parameters.VS168ChannelId}},${{parameters.VSMasterChannelId}}
 
     - job:
       displayName: NuGet Validation
@@ -276,13 +276,13 @@ stages:
       dependsOn: ${{ parameters.publishDependsOn }}
       publishInstallersAndChecksums: ${{ parameters.publishInstallersAndChecksums }}
       symbolPublishingAdditionalParameters: ${{ parameters.symbolPublishingAdditionalParameters }}
-      stageName: 'Net5_Preview7_Publish'
-      channelName: '.NET 5 Preview 7'
-      akaMSChannelName: 'net5/preview7'
-      channelId: ${{ parameters.Net5Preview7ChannelId }}
-      transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5-transport/nuget/v3/index.json'
-      shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json'
-      symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5-symbols/nuget/v3/index.json'
+      stageName: 'NetCore_Dev6_Publish'
+      channelName: '.NET 6 Dev'
+      akaMSChannelName: 'net6/dev'
+      channelId: ${{ parameters.NetDev6ChannelId }}
+      transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6-transport/nuget/v3/index.json'
+      shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json'
+      symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6-symbols/nuget/v3/index.json'
 
   - template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
     parameters:
@@ -298,7 +298,7 @@ stages:
       shippingFeed: 'https://pkgs.dev.azure.com/dnceng/internal/_packaging/dotnet5-internal/nuget/v3/index.json'
       symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/internal/_packaging/dotnet5-internal-symbols/nuget/v3/index.json'
 
-  - template: \eng\common\templates\post-build\channels\generic-internal-channel.yml
+  - template: \eng\common\templates\post-build\channels\generic-public-channel.yml
     parameters:
       artifactsPublishingAdditionalParameters: ${{ parameters.artifactsPublishingAdditionalParameters }}
       dependsOn: ${{ parameters.publishDependsOn }}
@@ -308,9 +308,9 @@ stages:
       channelName: '.NET 5 RC 1'
       akaMSChannelName: 'net5/rc1'
       channelId: ${{ parameters.Net5RC1ChannelId }}
-      transportFeed: 'https://pkgs.dev.azure.com/dnceng/internal/_packaging/dotnet5-internal-transport/nuget/v3/index.json'
-      shippingFeed: 'https://pkgs.dev.azure.com/dnceng/internal/_packaging/dotnet5-internal/nuget/v3/index.json'
-      symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/internal/_packaging/dotnet5-internal-symbols/nuget/v3/index.json'
+      transportFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5-transport/nuget/v3/index.json'
+      shippingFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json'
+      symbolsFeed: 'https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5-symbols/nuget/v3/index.json'
 
   - template: \eng\common\templates\post-build\channels\generic-public-channel.yml
     parameters:
diff --git a/global.json b/global.json
index d810659eaf..89bda8ddbd 100644
--- a/global.json
+++ b/global.json
@@ -30,7 +30,7 @@
   },
   "msbuild-sdks": {
     "Yarn.MSBuild": "1.15.2",
-    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.20411.8",
-    "Microsoft.DotNet.Helix.Sdk": "5.0.0-beta.20411.8"
+    "Microsoft.DotNet.Arcade.Sdk": "5.0.0-beta.20417.6",
+    "Microsoft.DotNet.Helix.Sdk": "5.0.0-beta.20417.6"
   }
 }