diff --git a/GaussForHomalg/PackageInfo.g b/GaussForHomalg/PackageInfo.g
index 90e218103..e221143e1 100644
--- a/GaussForHomalg/PackageInfo.g
+++ b/GaussForHomalg/PackageInfo.g
@@ -11,7 +11,7 @@ SetPackageInfo( rec(
 
 PackageName := "GaussForHomalg",
 Subtitle := "Gauss functionality for the homalg project",
-Version := "2023.11-01",
+Version := "2024.07-01",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
diff --git a/GaussForHomalg/gap/GaussTools.gi b/GaussForHomalg/gap/GaussTools.gi
index ade597902..d30dd2374 100644
--- a/GaussForHomalg/gap/GaussTools.gi
+++ b/GaussForHomalg/gap/GaussTools.gi
@@ -406,11 +406,18 @@ InstallGlobalFunction( HOMALG_RING_OF_INTEGERS_PRIME_POWER_HELPER,
             d := 1;
         fi;
         R := CreateHomalgRing( GF( c, d ) );
+        
+        SetRingFilter( R, IsHomalgRing );
+        SetRingElementFilter( R, IsFFE );
+        
         R!.NameOfPrimitiveElement := Concatenation( "Z", String( c ), "_", String( d ) );
         SetIsFieldForHomalg( R, true );
         SetRingProperties( R, c, d );
     else
         R := CreateHomalgRing( ZmodnZ( c ) );
+        
+        SetRingFilter( R, IsHomalgRing );
+        SetRingElementFilter( R, IsZmodnZObj );
     fi;
     return R;
 end );
diff --git a/GradedRingForHomalg/PackageInfo.g b/GradedRingForHomalg/PackageInfo.g
index e6bf64a84..751d2a4c3 100644
--- a/GradedRingForHomalg/PackageInfo.g
+++ b/GradedRingForHomalg/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "GradedRingForHomalg",
 Subtitle := "Endow Commutative Rings with an Abelian Grading",
-Version := "2023.08-01",
+Version := "2024.07-01",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
diff --git a/GradedRingForHomalg/gap/GradedRing.gi b/GradedRingForHomalg/gap/GradedRing.gi
index 3f8b19e9a..7a234bf31 100644
--- a/GradedRingForHomalg/gap/GradedRing.gi
+++ b/GradedRingForHomalg/gap/GradedRing.gi
@@ -779,6 +779,10 @@ InstallMethod( GradedRing,
     
     ## create the graded ring
     S := CreateHomalgRing( R, [ TheTypeHomalgGradedRing, ValueGlobal( "TheTypeHomalgMatrixOverGradedRing" ) ], GradedRingElement, RP );
+    
+    SetRingFilter( S, IsHomalgGradedRingRep );
+    SetRingElementFilter( S, IsHomalgGradedRingElementRep );
+    
     SetConstructorForHomalgMatrices( S,
       function( arg )
         local nargs, mat, R, l;
diff --git a/MatricesForHomalg/PackageInfo.g b/MatricesForHomalg/PackageInfo.g
index a3c57b3d4..cb8bd7bf8 100644
--- a/MatricesForHomalg/PackageInfo.g
+++ b/MatricesForHomalg/PackageInfo.g
@@ -11,7 +11,7 @@ SetPackageInfo( rec(
 
 PackageName := "MatricesForHomalg",
 Subtitle := "Matrices for the homalg project",
-Version := "2024.06-01",
+Version := "2024.07-01",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
diff --git a/MatricesForHomalg/gap/ResidueClassRing.gi b/MatricesForHomalg/gap/ResidueClassRing.gi
index bc9121e3f..3772c227e 100644
--- a/MatricesForHomalg/gap/ResidueClassRing.gi
+++ b/MatricesForHomalg/gap/ResidueClassRing.gi
@@ -578,6 +578,9 @@ InstallMethod( \/, ## this operation is declared in the file HomalgRelations.gd
     ## create the residue class ring
     S := CreateHomalgRing( R, [ TheTypeHomalgResidueClassRing, TheTypeHomalgResidueClassMatrix ], HomalgResidueClassRingElement, RP );
     
+    SetRingFilter( S, IsHomalgResidueClassRingRep );
+    SetRingElementFilter( S, IsHomalgResidueClassRingElementRep );
+    
     ## the constructor of matrices over residue class rings
     SetConstructorForHomalgMatrices( S,
             function( arg )
diff --git a/ToolsForHomalg/PackageInfo.g b/ToolsForHomalg/PackageInfo.g
index f851b964b..6679ea867 100644
--- a/ToolsForHomalg/PackageInfo.g
+++ b/ToolsForHomalg/PackageInfo.g
@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "ToolsForHomalg",
 Subtitle := "Special methods and knowledge propagation tools",
-Version := "2023.11-01",
+Version := "2024.07-01",
 Date := (function ( ) if IsBound( GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE ) then return GAPInfo.SystemEnvironment.GAP_PKG_RELEASE_DATE; else return Concatenation( ~.Version{[ 1 .. 4 ]}, "-", ~.Version{[ 6, 7 ]}, "-01" ); fi; end)( ),
 License := "GPL-2.0-or-later",
 
diff --git a/ToolsForHomalg/gap/ToolsForHomalg.gd b/ToolsForHomalg/gap/ToolsForHomalg.gd
index bbd422193..267fdb01e 100644
--- a/ToolsForHomalg/gap/ToolsForHomalg.gd
+++ b/ToolsForHomalg/gap/ToolsForHomalg.gd
@@ -105,6 +105,9 @@ DeclareAttribute( "RingElementFilter",
 SetRingFilter( Integers, IsIntegers );
 SetRingElementFilter( Integers, IsInt );
 
+SetRingFilter( Rationals, IsRationals );
+SetRingElementFilter( Rationals, IsRat );
+
 ####################################
 #
 # global functions and operations: