diff --git a/Directory.Build.props b/Directory.Build.props
index c5b651887..72595828b 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -9,7 +9,7 @@
     <Version>$(MicrosoftIdentityWebVersion)</Version>
 
     <EnablePackageValidation>true</EnablePackageValidation>
-    <PackageValidationBaselineVersion>3.14.1</PackageValidationBaselineVersion>
+    <PackageValidationBaselineVersion>4.0.0</PackageValidationBaselineVersion>
 
     <BuildDirectory>$(MSBuildThisFileDirectory)/build</BuildDirectory>
     <AssemblyOriginatorKeyFile>$(BuildDirectory)/35MSSharedLib1024.snk</AssemblyOriginatorKeyFile>
diff --git a/src/Microsoft.Identity.Web.AgentIdentities/Microsoft.Identity.Web.AgentIdentities.csproj b/src/Microsoft.Identity.Web.AgentIdentities/Microsoft.Identity.Web.AgentIdentities.csproj
index 6a94cc28e..5479f27ff 100644
--- a/src/Microsoft.Identity.Web.AgentIdentities/Microsoft.Identity.Web.AgentIdentities.csproj
+++ b/src/Microsoft.Identity.Web.AgentIdentities/Microsoft.Identity.Web.AgentIdentities.csproj
@@ -6,8 +6,6 @@
     <Description>Helper methods for Agent identity blueprint to act as the agent identities.</Description>
     <PackageReadmeFile>README.md</PackageReadmeFile>
 
-    <!-- The package is new in 3.10.0.-->
-    <PackageValidationBaselineVersion>3.10.0</PackageValidationBaselineVersion>
     <EnablePackageValidation>true</EnablePackageValidation>
   </PropertyGroup>
 
@@ -30,5 +28,5 @@
     <ProjectReference Include="..\Microsoft.Identity.Web.OidcFIC\Microsoft.Identity.Web.OidcFIC.csproj" />
     <ProjectReference Include="..\Microsoft.Identity.Web.TokenAcquisition\Microsoft.Identity.Web.TokenAcquisition.csproj" />
   </ItemGroup>
-  
+
 </Project>
diff --git a/src/Microsoft.Identity.Web.TokenAcquisition/CompatibilitySuppressions.xml b/src/Microsoft.Identity.Web.TokenAcquisition/CompatibilitySuppressions.xml
deleted file mode 100644
index 1d9cb4dea..000000000
--- a/src/Microsoft.Identity.Web.TokenAcquisition/CompatibilitySuppressions.xml
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- https://learn.microsoft.com/dotnet/fundamentals/package-validation/diagnostic-ids -->
-<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
-  <Suppression>
-    <DiagnosticId>CP0001</DiagnosticId>
-    <Target>T:Microsoft.Identity.Web.OpenIdConnectOptions</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0002</DiagnosticId>
-    <Target>M:Microsoft.Identity.Web.MicrosoftIdentityAuthenticationException.#ctor(System.Runtime.Serialization.SerializationInfo,System.Runtime.Serialization.StreamingContext)</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0002</DiagnosticId>
-    <Target>M:Microsoft.Identity.Web.MicrosoftIdentityOptions.get_ErrorPath</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0002</DiagnosticId>
-    <Target>M:Microsoft.Identity.Web.MicrosoftIdentityOptions.get_ResetPasswordPath</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0006</DiagnosticId>
-    <Target>M:Microsoft.Identity.Web.ITokenAcquisition.ReplyForbiddenWithWwwAuthenticateHeader(System.Collections.Generic.IEnumerable{System.String},Microsoft.Identity.Client.MsalUiRequiredException,System.String,Microsoft.AspNetCore.Http.HttpResponse)</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0006</DiagnosticId>
-    <Target>M:Microsoft.Identity.Web.ITokenAcquisition.ReplyForbiddenWithWwwAuthenticateHeaderAsync(System.Collections.Generic.IEnumerable{System.String},Microsoft.Identity.Client.MsalUiRequiredException,Microsoft.AspNetCore.Http.HttpResponse)</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-  <Suppression>
-    <DiagnosticId>CP0007</DiagnosticId>
-    <Target>T:Microsoft.Identity.Web.MicrosoftIdentityOptions</Target>
-    <Left>lib/netstandard2.0/Microsoft.Identity.Web.TokenAcquisition.dll</Left>
-    <Right>lib/net8.0/Microsoft.Identity.Web.TokenAcquisition.dll</Right>
-  </Suppression>
-</Suppressions>
\ No newline at end of file