diff --git a/Directory.Build.props b/Directory.Build.props
index f6660e797..3cb8a5605 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -11,6 +11,7 @@
     <Product>Microsoft Health</Product>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
     <RepoRootPath>$(MSBuildThisFileDirectory)</RepoRootPath>
+	  <LatestFramework>net8.0</LatestFramework>  
   </PropertyGroup>
 
   <PropertyGroup>
diff --git a/build/build.yml b/build/build.yml
index 18772c6b6..dfcdd4a6e 100644
--- a/build/build.yml
+++ b/build/build.yml
@@ -4,9 +4,9 @@ parameters:
 
 steps:
   - task: UseDotNet@2
-    displayName: 'Use .NET Core sdk 6.0.x'
+    displayName: 'Use .NET Core sdk 8.0.x'
     inputs:
-      version: 6.0.x
+      version: 8.0.x
       selectOrConfig: configs
       nugetConfigPath: nuget.config
 
diff --git a/build/publish-nugets.yml b/build/publish-nugets.yml
index 3eb1a0fe8..f7e8b1f65 100644
--- a/build/publish-nugets.yml
+++ b/build/publish-nugets.yml
@@ -1,8 +1,8 @@
 steps:
   - task: UseDotNet@2
-    displayName: 'Use .NET Core sdk 6.0.x'
+    displayName: 'Use .NET Core sdk 8.0.x'
     inputs:
-      version: 6.0.x
+      version: 8.0.x
       selectOrConfig: configs
       nugetConfigPath: nuget.config
 
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests.csproj b/src/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests.csproj
index 05b2791c1..eace80207 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests.csproj
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests/Microsoft.Health.Fhir.Liquid.Converter.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.csproj b/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.csproj
index 5128282eb..803a69cb5 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.csproj
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
     <IsPackable>true</IsPackable>
     <NuspecFile>Microsoft.Health.Fhir.Liquid.Converter.Tool.nuspec</NuspecFile>
   </PropertyGroup>
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.nuspec b/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.nuspec
index 73a517f8c..c2b073abd 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.nuspec
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter.Tool/Microsoft.Health.Fhir.Liquid.Converter.Tool.nuspec
@@ -9,10 +9,10 @@
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>Package Description</description>
     <contentFiles>
-      <files include="any/net6.0/**/*.*" buildAction="Content" copyToOutput="true" />
+      <files include="any/net8.0/**/*.*" buildAction="Content" copyToOutput="true" />
     </contentFiles>
   </metadata>
   <files>
-    <file src="..\..\bin\publish\**" target="contentFiles\any\net6.0" />
+    <file src="..\..\bin\publish\**" target="contentFiles\any\net8.0" />
   </files>
 </package>
\ No newline at end of file
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Filters/SegmentFiltersTests.cs b/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Filters/SegmentFiltersTests.cs
index 2652fdbf0..54b0ac944 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Filters/SegmentFiltersTests.cs
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Filters/SegmentFiltersTests.cs
@@ -6,6 +6,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using Microsoft.Health.Fhir.Liquid.Converter.Exceptions;
 using Microsoft.Health.Fhir.Liquid.Converter.Models.Hl7v2;
 using Microsoft.Health.Fhir.Liquid.Converter.Parsers;
 using Xunit;
@@ -45,7 +46,7 @@ public void GivenAnHl7v2Data_WhenGetFirstSegments_CorrectResultShouldBeReturned(
             Assert.True(!segments.ContainsKey("PV1"));
 
             // Hl7v2Data and segment id content could not be null
-            Assert.Throws<NullReferenceException>(() => Filters.GetFirstSegments(null, "PID"));
+            Assert.Throws<TemplateLoadException>(() => Filters.GetFirstSegments(null, "PID"));
             Assert.Throws<NullReferenceException>(() => Filters.GetFirstSegments(new Hl7v2Data(), null));
         }
 
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Microsoft.Health.Fhir.Liquid.Converter.UnitTests.csproj b/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Microsoft.Health.Fhir.Liquid.Converter.UnitTests.csproj
index eac2c2e2f..1b6c5a98b 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Microsoft.Health.Fhir.Liquid.Converter.UnitTests.csproj
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter.UnitTests/Microsoft.Health.Fhir.Liquid.Converter.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter/Filters/SegmentFilters.cs b/src/Microsoft.Health.Fhir.Liquid.Converter/Filters/SegmentFilters.cs
index 4966b72b5..a785361be 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter/Filters/SegmentFilters.cs
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter/Filters/SegmentFilters.cs
@@ -6,6 +6,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using Microsoft.Health.Fhir.Liquid.Converter.Exceptions;
+using Microsoft.Health.Fhir.Liquid.Converter.Models;
 using Microsoft.Health.Fhir.Liquid.Converter.Models.Hl7v2;
 
 namespace Microsoft.Health.Fhir.Liquid.Converter
@@ -17,6 +19,11 @@ public partial class Filters
     {
         public static Dictionary<string, Hl7v2Segment> GetFirstSegments(Hl7v2Data hl7v2Data, string segmentIdContent)
         {
+            if (hl7v2Data == null)
+            {
+                throw new TemplateLoadException(FhirConverterErrorCode.TemplateDataMismatch, "Incorrect template was passed in for the input data format.");
+            }
+
             var result = new Dictionary<string, Hl7v2Segment>();
             var segmentIds = segmentIdContent.Split(@"|");
             for (var i = 0; i < hl7v2Data.Meta.Count; ++i)
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter/Microsoft.Health.Fhir.Liquid.Converter.csproj b/src/Microsoft.Health.Fhir.Liquid.Converter/Microsoft.Health.Fhir.Liquid.Converter.csproj
index ea0ac6bfc..f75252f42 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter/Microsoft.Health.Fhir.Liquid.Converter.csproj
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter/Microsoft.Health.Fhir.Liquid.Converter.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
     <IsPackable>false</IsPackable>
     <Nullable>annotations</Nullable>
   </PropertyGroup>
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter/Models/FhirConverterErrorCode.cs b/src/Microsoft.Health.Fhir.Liquid.Converter/Models/FhirConverterErrorCode.cs
index a9466ec79..7aff9f0f5 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter/Models/FhirConverterErrorCode.cs
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter/Models/FhirConverterErrorCode.cs
@@ -18,6 +18,7 @@ public enum FhirConverterErrorCode
         InvalidCodeMapping = 1103,
         TemplateSyntaxError = 1104,
         InvalidJsonSchema = 1105,
+        TemplateDataMismatch = 1106,
 
         // DataParseException
         InputParsingError = 1201,
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter/Models/PartialDateTime.cs b/src/Microsoft.Health.Fhir.Liquid.Converter/Models/PartialDateTime.cs
index 694127279..399db2bb6 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter/Models/PartialDateTime.cs
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter/Models/PartialDateTime.cs
@@ -84,7 +84,8 @@ public PartialDateTime ConvertToDate()
 
         public PartialDateTime AddSeconds(double seconds)
         {
-            DateTimeValue = DateTimeValue.AddSeconds(seconds);
+            var timespan = TimeSpan.FromSeconds(seconds);
+            DateTimeValue = DateTimeValue.Add(timespan);
             MillisecondString = null;
 
             if (Precision != DateTimePrecision.Milliseconds)
diff --git a/src/Microsoft.Health.Fhir.Liquid.Converter/Processors/BaseProcessor.cs b/src/Microsoft.Health.Fhir.Liquid.Converter/Processors/BaseProcessor.cs
index 631bed290..7429279c7 100644
--- a/src/Microsoft.Health.Fhir.Liquid.Converter/Processors/BaseProcessor.cs
+++ b/src/Microsoft.Health.Fhir.Liquid.Converter/Processors/BaseProcessor.cs
@@ -129,6 +129,10 @@ protected string RenderTemplates(Template template, Context context)
             {
                 throw;
             }
+            catch (TemplateLoadException)
+            {
+                throw;
+            }
             catch (Exception ex)
             {
                 Console.WriteLine("Ex: {1} StackTrace: '{0}'", Environment.StackTrace, ex);
diff --git a/src/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests.csproj b/src/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests.csproj
index 75d999fde..337580417 100644
--- a/src/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests.csproj
+++ b/src/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests/Microsoft.Health.Fhir.TemplateManagement.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/src/Microsoft.Health.Fhir.TemplateManagement.UnitTests/Microsoft.Health.Fhir.TemplateManagement.UnitTests.csproj b/src/Microsoft.Health.Fhir.TemplateManagement.UnitTests/Microsoft.Health.Fhir.TemplateManagement.UnitTests.csproj
index 097b9d80d..8ce35fa99 100644
--- a/src/Microsoft.Health.Fhir.TemplateManagement.UnitTests/Microsoft.Health.Fhir.TemplateManagement.UnitTests.csproj
+++ b/src/Microsoft.Health.Fhir.TemplateManagement.UnitTests/Microsoft.Health.Fhir.TemplateManagement.UnitTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
diff --git a/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.Liquid.Converter.nuspec b/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.Liquid.Converter.nuspec
index fd6037bb9..26c993a54 100644
--- a/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.Liquid.Converter.nuspec
+++ b/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.Liquid.Converter.nuspec
@@ -9,7 +9,7 @@
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>Package Description</description>
     <dependencies>
-      <group targetFramework="net6.0">
+      <group targetFramework="net8.0">
         <dependency id="Antlr4.Runtime.Standard" version="4.8.0" exclude="Build,Analyzers" />
         <dependency id="Azure.Identity" version="1.10.3" exclude="Build,Analyzers" />
         <dependency id="Azure.Storage.Blobs" version="12.17.0" exclude="Build,Analyzers" />
@@ -32,7 +32,7 @@
     </dependencies>
   </metadata>
   <files>
-    <file src="bin\Release\net6.0\Microsoft.Health.Fhir.Liquid.Converter.dll" target="lib\net6.0" />
-    <file src="bin\Release\net6.0\Microsoft.Health.Fhir.TemplateManagement.dll" target="lib\net6.0" />
+    <file src="bin\Release\net8.0\Microsoft.Health.Fhir.Liquid.Converter.dll" target="lib\net8.0" />
+    <file src="bin\Release\net8.0\Microsoft.Health.Fhir.TemplateManagement.dll" target="lib\net8.0" />
   </files>
 </package>
diff --git a/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.TemplateManagement.csproj b/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.TemplateManagement.csproj
index a392a1801..60aeaccda 100644
--- a/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.TemplateManagement.csproj
+++ b/src/Microsoft.Health.Fhir.TemplateManagement/Microsoft.Health.Fhir.TemplateManagement.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>$(LatestFramework)</TargetFramework>
     <IsPackable>true</IsPackable>
     <NuspecFile>Microsoft.Health.Fhir.Liquid.Converter.nuspec</NuspecFile>
     <OrasVersion>0.12.0</OrasVersion>