Update release notes for v4.2.0

Author: wo80

CSparse/CSparse.csproj

@@ -11,17 +11,21 @@
     <Company />
     <Copyright>Copyright Christian Woltering © 2012-2024</Copyright>
     <Authors>Christian Woltering</Authors>
-    <AssemblyVersion>4.1.0.0</AssemblyVersion>
-    <FileVersion>4.1.0.0</FileVersion>
+    <AssemblyVersion>4.2.0.0</AssemblyVersion>
+    <FileVersion>4.2.0.0</FileVersion>
     <PackageTags>math sparse matrix lu cholesky qr decomposition factorization </PackageTags>
-    <Version>4.1.0</Version>
+    <Version>4.2.0</Version>
     <AssemblyName>CSparse</AssemblyName>
     <RootNamespace>CSparse</RootNamespace>
     <PackageLicenseExpression>LGPL-2.1-only</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/wo80/CSparse.NET</PackageProjectUrl>
     <RepositoryUrl>https://github.com/wo80/CSparse.NET.git</RepositoryUrl>
     <RepositoryType>git</RepositoryType>
     <PackageReleaseNotes>
+		Version 4.2.0
+
+		* Make SymbolicColumnStorage class public and update StronglyConnectedComponents and DulmageMendelsohn decomposition accordingly.
+
 		Version 4.1.0
 
 		* Add overload for creating a sparse matrix from an enumerable of ValueTuple.