diff --git a/src/SourceBuild/content/eng/Version.Details.xml b/src/SourceBuild/content/eng/Version.Details.xml
index ea94169d60f6..c9caa8761041 100644
--- a/src/SourceBuild/content/eng/Version.Details.xml
+++ b/src/SourceBuild/content/eng/Version.Details.xml
@@ -2,9 +2,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="10.0.0-beta.24551.1">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="10.0.0-beta.24617.2">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>1818ed2babf890a1cd62fa96a1f03abdada2d003</Sha>
+      <Sha>4f2968fce08735a7e22fca6bd4c99d003221d716</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/src/SourceBuild/content/eng/Versions.props b/src/SourceBuild/content/eng/Versions.props
index 0f0784c94bf6..68b832736abc 100644
--- a/src/SourceBuild/content/eng/Versions.props
+++ b/src/SourceBuild/content/eng/Versions.props
@@ -23,9 +23,9 @@
       of a .NET major or minor release, prebuilts may be needed. When the release is mature, prebuilts
       are not necessary, and this property is removed from the file.
     -->
-    <PrivateSourceBuiltSdkVersion>10.0.100-alpha.1.24556.1</PrivateSourceBuiltSdkVersion>
-    <PrivateSourceBuiltArtifactsVersion>10.0.100-alpha.1.24556.1</PrivateSourceBuiltArtifactsVersion>
-    <PrivateSourceBuiltPrebuiltsVersion>0.1.0-10.0.100-6</PrivateSourceBuiltPrebuiltsVersion>
+    <PrivateSourceBuiltSdkVersion>10.0.100-alpha.1.24620.1</PrivateSourceBuiltSdkVersion>
+    <PrivateSourceBuiltArtifactsVersion>10.0.100-alpha.1.24620.1</PrivateSourceBuiltArtifactsVersion>
+    <PrivateSourceBuiltPrebuiltsVersion>0.1.0-10.0.100-7</PrivateSourceBuiltPrebuiltsVersion>
     <!-- command-line-api dependencies -->
     <SystemCommandLineVersion>2.0.0-beta4.24126.1</SystemCommandLineVersion>
     <!-- msbuild dependencies -->
diff --git a/src/SourceBuild/content/global.json b/src/SourceBuild/content/global.json
index 0cef1ca7ad9d..7f4d3e7ecd09 100644
--- a/src/SourceBuild/content/global.json
+++ b/src/SourceBuild/content/global.json
@@ -1,10 +1,10 @@
 {
   "tools": {
-    "dotnet": "10.0.100-alpha.1.24555.54"
+    "dotnet": "10.0.100-alpha.1.24619.18"
   },
   "msbuild-sdks": {
     "Microsoft.Build.NoTargets": "3.7.0",
     "Microsoft.Build.Traversal": "3.4.0",
-    "Microsoft.DotNet.Arcade.Sdk": "10.0.0-beta.24551.1"
+    "Microsoft.DotNet.Arcade.Sdk": "10.0.0-beta.24617.2"
   }
 }
diff --git a/src/SourceBuild/patches/arcade/0002-Upgrade-System.Memory-to-4.6.0.patch b/src/SourceBuild/patches/arcade/0002-Upgrade-System.Memory-to-4.6.0.patch
new file mode 100644
index 000000000000..54d9237ff20a
--- /dev/null
+++ b/src/SourceBuild/patches/arcade/0002-Upgrade-System.Memory-to-4.6.0.patch
@@ -0,0 +1,23 @@
+From e34d52334b4418b2229f631cc525d024e34d3e27 Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Thu, 19 Dec 2024 08:19:09 -0600
+Subject: [PATCH] Upgrade System.Memory to 4.6.0
+
+Backport: https://github.com/dotnet/arcade/pull/15353
+---
+ eng/Versions.props | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/eng/Versions.props b/eng/Versions.props
+index 7de3fec4c..ddb6a9658 100644
+--- a/eng/Versions.props
++++ b/eng/Versions.props
+@@ -18,7 +18,7 @@
+     <SystemCommandLineVersion>2.0.0-beta4.24126.1</SystemCommandLineVersion>
+     <!-- corefx -->
+     <MicrosoftBclHashCodeVersion>1.1.1</MicrosoftBclHashCodeVersion>
+-    <SystemMemoryVersion>4.5.5</SystemMemoryVersion>
++    <SystemMemoryVersion>4.6.0</SystemMemoryVersion>
+     <SystemRuntimeInteropServicesRuntimeInformation>4.3.0</SystemRuntimeInteropServicesRuntimeInformation>
+     <!-- deployment-tools -->
+     <MicrosoftDeploymentDotNetReleasesVersion>2.0.0-preview.1.24305.1</MicrosoftDeploymentDotNetReleasesVersion>
diff --git a/src/SourceBuild/patches/fsharp/0001-Upgrade-some-runtime-packages.patch b/src/SourceBuild/patches/fsharp/0001-Upgrade-some-runtime-packages.patch
new file mode 100644
index 000000000000..c12d61eb6c7d
--- /dev/null
+++ b/src/SourceBuild/patches/fsharp/0001-Upgrade-some-runtime-packages.patch
@@ -0,0 +1,33 @@
+From 192a16dca94744c82ca456d6cfb7a2a30be1d84f Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Thu, 19 Dec 2024 11:00:01 -0600
+Subject: [PATCH] Upgrade some runtime packages
+
+Backport: https://github.com/dotnet/fsharp/pull/18166
+---
+ eng/Versions.props | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/eng/Versions.props b/eng/Versions.props
+index cd72f8599..1f711df8f 100644
+--- a/eng/Versions.props
++++ b/eng/Versions.props
+@@ -76,15 +76,15 @@
+     <!-- If a System.* package is stuck on version 4.3.x, targets .NET Standard 1.x and hasn't been
+     updated in years, you most likely DON'T need it, please exercise caution when adding it to the list. -->
+     <SystemPackageVersionVersion>8.0.0</SystemPackageVersionVersion>
+-    <SystemBuffersVersion>4.5.1</SystemBuffersVersion>
++    <SystemBuffersVersion>4.6.0</SystemBuffersVersion>
+     <SystemCollectionsImmutableVersion>$(SystemPackageVersionVersion)</SystemCollectionsImmutableVersion>
+     <SystemComponentModelCompositionVersion>$(SystemPackageVersionVersion)</SystemComponentModelCompositionVersion>
+     <SystemCompositionVersion>$(SystemPackageVersionVersion)</SystemCompositionVersion>
+     <SystemDiagnosticsDiagnosticSourceVersion>$(SystemPackageVersionVersion)</SystemDiagnosticsDiagnosticSourceVersion>
+-    <SystemMemoryVersion>4.5.5</SystemMemoryVersion>
++    <SystemMemoryVersion>4.6.0</SystemMemoryVersion>
+     <SystemReflectionEmitVersion>4.7.0</SystemReflectionEmitVersion>
+     <SystemReflectionMetadataVersion>$(SystemPackageVersionVersion)</SystemReflectionMetadataVersion>
+-    <SystemRuntimeCompilerServicesUnsafeVersion>6.0.0</SystemRuntimeCompilerServicesUnsafeVersion>
++    <SystemRuntimeCompilerServicesUnsafeVersion>6.1.0</SystemRuntimeCompilerServicesUnsafeVersion>
+     <SystemThreadingTasksDataflow>$(SystemPackageVersionVersion)</SystemThreadingTasksDataflow>
+     <SystemValueTupleVersion>4.5.0</SystemValueTupleVersion>
+     <MicrosoftDiaSymReaderPortablePdbVersion>1.6.0</MicrosoftDiaSymReaderPortablePdbVersion>
diff --git a/src/SourceBuild/patches/roslyn/0002-Only-target-NetCurrent-for-source-build.patch b/src/SourceBuild/patches/roslyn/0002-Only-target-NetCurrent-for-source-build.patch
new file mode 100644
index 000000000000..7a1b11ae5b5f
--- /dev/null
+++ b/src/SourceBuild/patches/roslyn/0002-Only-target-NetCurrent-for-source-build.patch
@@ -0,0 +1,31 @@
+From d5e9441491ee711dd04add052c7e3e39a3314361 Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Wed, 18 Dec 2024 15:57:56 -0600
+Subject: [PATCH] Only target NetCurrent for source build
+
+---
+ eng/targets/TargetFrameworks.props | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/eng/targets/TargetFrameworks.props b/eng/targets/TargetFrameworks.props
+index 2dddaff1560..724f64b50b1 100644
+--- a/eng/targets/TargetFrameworks.props
++++ b/eng/targets/TargetFrameworks.props
+@@ -40,7 +40,7 @@
+         <!-- TODO until we figure out what is up with NetPrevious -->
+         <NetPrevious>$(NetMinimum)</NetPrevious>
+         <NetRoslyn>$(NetPrevious)</NetRoslyn>
+-        <NetRoslynSourceBuild>$(NetCurrent);$(NetPrevious)</NetRoslynSourceBuild>
++        <NetRoslynSourceBuild>$(NetCurrent)</NetRoslynSourceBuild>
+         <NetRoslynAll>$(NetCurrent);$(NetPrevious)</NetRoslynAll>
+         <NetRoslynBuildHostNetCoreVersion>$(NetPrevious)</NetRoslynBuildHostNetCoreVersion>
+         <NetRoslynNext>$(NetPrevious)</NetRoslynNext>
+@@ -53,7 +53,7 @@
+     <When Condition="'$(DotNetBuildSourceOnly)' == 'true' AND '$(DotNetBuildOrchestrator)' == 'true'">
+       <PropertyGroup>
+         <NetRoslyn>$(NetCurrent)</NetRoslyn>
+-        <NetRoslynSourceBuild>$(NetCurrent);$(NetPrevious)</NetRoslynSourceBuild>
++        <NetRoslynSourceBuild>$(NetCurrent)</NetRoslynSourceBuild>
+         <NetRoslynAll>$(NetCurrent);$(NetPrevious)</NetRoslynAll>
+         <NetRoslynBuildHostNetCoreVersion>$(NetPrevious)</NetRoslynBuildHostNetCoreVersion>
+         <NetRoslynNext>$(NetCurrent)</NetRoslynNext>