diff --git a/eng/Publishing.props b/eng/Publishing.props
index 7968b1a8ca5a7..2a0c88ef1b25c 100644
--- a/eng/Publishing.props
+++ b/eng/Publishing.props
@@ -5,8 +5,9 @@
   </PropertyGroup>
 
   <!-- Update Artifacts with Kind=Package to have additional metadata item Category="ToolingPackage".
-       Depending on channel configuration, this means that these assets could be pushed to a different feed. -->
-  <ItemGroup>
+       Depending on channel configuration, this means that these assets could be pushed to a different feed.
+       Do not include these for source-only builds since these files aren't intended to be published in that mode. -->
+  <ItemGroup Condition="'$(DotNetBuildSourceOnly)' != 'true'">
     <Artifact Update="@(Artifact->WithMetadataValue('Kind', 'Package'))" Category="ToolingPackage" />
 
     <FilesToPublishToSymbolServer Include="$(ArtifactsBinDir)**/Microsoft.Build.Tasks.CodeAnalysis.pdb" />
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index b6f602b74c189..f75053fb11892 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
-  <Source Uri="https://github.com/dotnet/dotnet" Mapping="roslyn" Sha="25bec1af21db71468c5c2c3a588dd54d0e058e9d" BarId="271417" />
+  <Source Uri="https://github.com/dotnet/dotnet" Mapping="roslyn" Sha="f451e5d3036a4f140a989e0a7f3f1ae432420e71" BarId="274568" />
   <ProductDependencies>
     <!-- RoslynAnalyzers reference older builds of Roslyn and this is necessary for SourceBuild. -->
     <Dependency Name="Microsoft.CodeAnalysis" Version="3.11.0">
diff --git a/src/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/Microsoft.CodeAnalysis.LanguageServer.csproj b/src/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/Microsoft.CodeAnalysis.LanguageServer.csproj
index d1e49ba706322..c32f01a669587 100644
--- a/src/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/Microsoft.CodeAnalysis.LanguageServer.csproj
+++ b/src/LanguageServer/Microsoft.CodeAnalysis.LanguageServer/Microsoft.CodeAnalysis.LanguageServer.csproj
@@ -45,13 +45,13 @@
     <PublishDir Condition="'$(RuntimeIdentifier)' == ''">$(ArtifactsDir)/LanguageServer/$(Configuration)/$(TargetFramework)/neutral</PublishDir>
 
     <!-- List of runtime identifiers that we want to publish an executable for. -->
-    <!-- When building a VMR vertical, we don't need to pack everything. Just pack the passed in TargetRid or BaseRid.
-         TargetRid and BaseRid are provided to roslyn via the build arguments passed in the VMR orchestrator's repo project.
+    <!-- When building a VMR vertical, we don't need to pack everything. Just pack the passed in TargetRid or PortableTargetRid.
+         TargetRid and PortableTargetRid are provided to roslyn via the build arguments passed in the VMR orchestrator's repo project.
          https://github.com/dotnet/dotnet/blob/main/repo-projects/roslyn.proj. For definitions of the TargetRid
          and other common properties, see https://github.com/dotnet/arcade/blob/main/Documentation/UnifiedBuild/Unified-Build-Controls.md -->
     <RuntimeIdentifiers Condition="'$(TargetRid)' != ''">$(TargetRid)</RuntimeIdentifiers>
-    <RuntimeIdentifiers Condition="'$(BaseRid)' != ''">$(BaseRid)</RuntimeIdentifiers>
-    <RuntimeIdentifiers Condition="'$(TargetRid)' == '' and '$(BaseRid)' == ''">win-x64;win-arm64;linux-x64;linux-arm64;linux-musl-x64;linux-musl-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>
+    <RuntimeIdentifiers Condition="'$(PortableTargetRid)' != ''">$(PortableTargetRid)</RuntimeIdentifiers>
+    <RuntimeIdentifiers Condition="'$(TargetRid)' == '' and '$(PortableTargetRid)' == ''">win-x64;win-arm64;linux-x64;linux-arm64;linux-musl-x64;linux-musl-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>
 
     <!-- These indicate that the runtime/apphost packages should not be downloaded as part of build/restore -->
     <EnableRuntimePackDownload>false</EnableRuntimePackDownload>