diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 3d9b2f7..d0dd5f8 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -26,16 +26,16 @@ jobs:
       run: mkdir ~/nuget
 
     - name: Restore solution
-      run: dotnet restore src/Core.FlatCollections.slnx
+      run: dotnet restore
 
     - name: Build solution
-      run: dotnet build src/Core.FlatCollections.slnx --no-restore  -c Release
+      run: dotnet build --no-restore  -c Release
 
     - name: Test solution
-      run: dotnet test src/Core.FlatCollections.slnx --no-restore  -c Release
+      run: dotnet test --no-restore  -c Release
 
     - name: Pack solution
-      run: dotnet pack src/Core.FlatCollections.slnx --no-restore -o ~/nuget  -c Release
+      run: dotnet pack --no-restore -o ~/nuget  -c Release
 
     - name: Push Packages
       if: ${{ github.event_name == 'release' }}
diff --git a/Core.FlatCollections.slnx b/Core.FlatCollections.slnx
new file mode 100644
index 0000000..cf8c7ef
--- /dev/null
+++ b/Core.FlatCollections.slnx
@@ -0,0 +1,15 @@
+<Solution>
+  <Folder Name="/.sln/">
+    <File Path="./.github/workflows/dotnet.yml" />
+    <File Path="./LICENSE" />
+    <File Path="./.gitignore" />
+    <File Path="./README.md" />
+  </Folder>
+  <Folder Name="/flatcollections-array/">
+    <Project Path="src/flatcollections-array/FlatArray.Tests/FlatArray.Tests.csproj" />
+    <Project Path="src/flatcollections-array/FlatArray/FlatArray.csproj" />
+  </Folder>
+  <Folder Name="/flatcollections/">
+    <Project Path="src/flatcollections/FlatCollections/FlatCollections.csproj" />
+  </Folder>
+</Solution>
\ No newline at end of file
diff --git a/src/Core.FlatCollections.slnx b/src/Core.FlatCollections.slnx
deleted file mode 100644
index caf0fcf..0000000
--- a/src/Core.FlatCollections.slnx
+++ /dev/null
@@ -1,15 +0,0 @@
-<Solution>
-  <Folder Name="/.sln/">
-    <File Path="../.github/workflows/dotnet.yml" />
-    <File Path="../LICENSE" />
-    <File Path="../.gitignore" />
-    <File Path="../README.md" />
-  </Folder>
-  <Folder Name="/flatcollections-array/">
-    <Project Path="flatcollections-array/FlatArray.Tests/FlatArray.Tests.csproj" />
-    <Project Path="flatcollections-array/FlatArray/FlatArray.csproj" />
-  </Folder>
-  <Folder Name="/flatcollections/">
-    <Project Path="flatcollections/FlatCollections/FlatCollections.csproj" />
-  </Folder>
-</Solution>
\ No newline at end of file
diff --git a/src/flatcollections-array/FlatArray/FlatArray.csproj b/src/flatcollections-array/FlatArray/FlatArray.csproj
index 441adaf..22aaf9a 100644
--- a/src/flatcollections-array/FlatArray/FlatArray.csproj
+++ b/src/flatcollections-array/FlatArray/FlatArray.csproj
@@ -19,7 +19,7 @@
     <Description>PrimeFuncPack Core.FlatArray is a core library for .NET consisting of immutable FlatArray targeted for use in functional programming.</Description>
     <RootNamespace>System</RootNamespace>
     <AssemblyName>PrimeFuncPack.Core.FlatArray</AssemblyName>
-    <Version>1.5.2-preview.1</Version>
+    <Version>1.5.2-rc.1</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/flatcollections/FlatCollections/FlatCollections.csproj b/src/flatcollections/FlatCollections/FlatCollections.csproj
index 365ae9c..a7d9e21 100644
--- a/src/flatcollections/FlatCollections/FlatCollections.csproj
+++ b/src/flatcollections/FlatCollections/FlatCollections.csproj
@@ -19,7 +19,7 @@
     <Description>PrimeFuncPack Core.FlatCollections is a set of immutable Flat collections for .NET designed for developing business applications based on functional programming.</Description>
     <RootNamespace>System</RootNamespace>
     <AssemblyName>PrimeFuncPack.Core.FlatCollections</AssemblyName>
-    <Version>1.5.2-preview.1</Version>
+    <Version>1.5.2-rc.1</Version>
   </PropertyGroup>
 
   <ItemGroup>