diff --git a/Algorithms.Tests/Algorithms.Tests.fsproj b/Algorithms.Tests/Algorithms.Tests.fsproj
index fe2d559..836da01 100644
--- a/Algorithms.Tests/Algorithms.Tests.fsproj
+++ b/Algorithms.Tests/Algorithms.Tests.fsproj
@@ -1,46 +1,29 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
-    <LangVersion>preview</LangVersion>
-    
+    <TargetFramework>net6.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <IsPackable>false</IsPackable>
     <GenerateProgramFile>false</GenerateProgramFile>
   </PropertyGroup>
 
   <ItemGroup>
-    <Compile Include="Math\FactorialTests.fs" />
-    <Compile Include="Math\PowerTests.fs" />
-    <Compile Include="Math\PerfectNumbersTests.fs" />
-    <Compile Include="Strings\ZFunctionTests.fs" />
-    <Compile Include="Strings\WordOccurrenceTests.fs" />
-    <Compile Include="Strings\UpperTests.fs" />
-    <Compile Include="Strings\SwapCaseTests.fs" />
-    <Compile Include="Strings\SplitTests.fs" />
-    <Compile Include="Strings\ReverseWordsTests.fs" />
-    <Compile Include="Strings\ReverseLettersTests.fs" />
-    <Compile Include="Strings\RemoveDuplicatesTests.fs" />
-    <Compile Include="Strings\RabinKarpTests.fs" />
-    <Compile Include="Strings\PrefixFunctionTests.fs" />
-    <Compile Include="Strings\NaiveStringSearchTests.fs" />
-    <Compile Include="Strings\ManacherTests.fs" />
-    <Compile Include="Strings\MinCostStringConversionTests.fs" />
-    <Compile Include="Strings\LowerTests.fs" />
-    <Compile Include="Strings\LevenshteinDistanceTests.fs" />
-    <Compile Include="Strings\KnuthMorrisPrattTests.fs" />
-    <Compile Include="Strings\JaroWinklerTests.fs" />
-    <Compile Include="Strings\IsPalindromeTests.fs" />
-    <Compile Include="Strings\CheckPangramTests.fs" />
-    <Compile Include="Strings\CheckAnagramsTests.fs" />
-    <Compile Include="Strings\CapitalizeTests.fs" />
+    <Compile Include="Math/*.fs" />
+    <Compile Include="Search/*.fs" />
+    <Compile Include="Sort/*.fs" />
+    <Compile Include="Strings/*.fs" />
     <Compile Include="Program.fs" />
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.1.1" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.1.1" />
-    <PackageReference Include="coverlet.collector" Version="1.3.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.8" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
+    <PackageReference Include="coverlet.collector" Version="3.1.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Algorithms/Algorithms.fsproj b/Algorithms/Algorithms.fsproj
index 4be3dd4..b17144c 100644
--- a/Algorithms/Algorithms.fsproj
+++ b/Algorithms/Algorithms.fsproj
@@ -1,52 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
+
   <PropertyGroup>
-    <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
-    <LangVersion>preview</LangVersion>
+    <OutputType>Library</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <LangVersion>latest</LangVersion>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
+
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <DefineConstants>TRACE</DefineConstants>
   </PropertyGroup>
+
   <ItemGroup>
-    <Compile Include="Math/Abs.fs" />
-    <Compile Include="Math/AbsMax.fs" />
-    <Conpile Include="Math/AbsMin.fs" />
-    <Compile Include="Math/Factorial.fs" />
-    <Compile Include="Math/Fibonacci.fs" />
-    <Compile Include="Math/Perfect_Numbers.fs" />
-    <Compile Include="Math/Power.fs" />
-    <Compile Include="Sort/Bubble_Sort.fs" />
-    <Compile Include="Sort/Comb_Sort.fs" />
-    <Compile Include="Sort/Cycle_Sort.fs" />
-    <Compile Include="Sort/Gnome_Sort.fs" />
-    <Compile Include="Sort/Heap_Sort.fs" />
-    <Compile Include="Sort/Insertion_Sort.fs" />
-    <Compile Include="Sort/Merge_Sort.fs" />
-    <Compile Include="Sort/Pancake_Sort.fs" />
-    <Compile Include="Sort/Quick_Sort.fs" />
-    <Compile Include="Search/BinarySearch.fs" />
-    <Compile Include="Strings/Capitalize.fs" />
-    <Compile Include="Strings/CheckAnagrams.fs" />
-    <Compile Include="Strings/CheckPangram.fs" />
-    <Compile Include="Strings/IsPalindrome.fs" />
-    <Compile Include="Strings/JaroWinkler.fs" />
-    <Compile Include="Strings/KnuthMorrisPratt.fs" />
-    <Compile Include="Strings/LevenshteinDistance.fs" />
-    <Compile Include="Strings/Lower.fs" />
-    <Compile Include="Strings/Manacher.fs" />
-    <Compile Include="Strings/MinCostStringConversion.fs" />
-    <Compile Include="Strings/NaiveStringSearch.fs" />
-    <Compile Include="Strings/PrefixFunction.fs" />
-    <Compile Include="Strings/RabinKarp.fs" />
-    <Compile Include="Strings/RemoveDuplicates.fs" />
-    <Compile Include="Strings/ReverseLetters.fs" />
-    <Compile Include="Strings/ReverseWords.fs" />
-    <Compile Include="Strings/Split.fs" />
-    <Compile Include="Strings/SwapCase.fs" />
-    <Compile Include="Strings/Upper.fs" />
-    <Compile Include="Strings/WordOccurrence.fs" />
-    <Compile Include="Strings/ZFunction.fs" />
-    <Compile Include="Program.fs" />
+    <Compile Include="Math/*.fs" />
+    <Compile Include="Search/*.fs" />
+    <Compile Include="Sort/*.fs" />
+    <Compile Include="Strings/*.fs" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+
+</Project>
diff --git a/Algorithms/Program.fs b/Algorithms/Program.fs
deleted file mode 100644
index 31cb68e..0000000
--- a/Algorithms/Program.fs
+++ /dev/null
@@ -1,12 +0,0 @@
-namespace Algorithms
-
-module Program =
-    [<EntryPoint>]
-    let main argv =
-        // For sort algorihm testing
-        // let list = [| 2; 45; 59; 1; 0; -2; 5; 19 |]
-        // for item in InsertionSort.Sort list do
-        //    System.Console.WriteLine item
-        Math.Fibonacci.PrintSerie 1 0
-
-        0
diff --git a/Algorithms/Strings/Manacher.fs b/Algorithms/Strings/Manacher.fs
index b3e111b..beb2b2b 100644
--- a/Algorithms/Strings/Manacher.fs
+++ b/Algorithms/Strings/Manacher.fs
@@ -18,7 +18,9 @@ module Manacher =
 
         printfn "%A" newInputString
         // Append last character
-        newInputString <- newInputString + (string) inputString.[^1]
+        newInputString <-
+            newInputString
+            + string inputString.[inputString.Length - 1]
 
         // We will store the starting and ending of previous furthest ending palindromic
         // substring