diff --git a/src/maths/sparse/ChangeLog b/src/maths/sparse/ChangeLog
index af1dff85c..1b510c80d 100644
--- a/src/maths/sparse/ChangeLog
+++ b/src/maths/sparse/ChangeLog
@@ -3,48 +3,31 @@
 	* spdefs.h: #includes spice.h instead of misc.h
 	added a few #undefs to avoid redaclarations 
 
-2023-06-06 Dietmar Warning
+2023-06-06 Dietmar Warning adaption to latest sparse version 1.4b
 spAllocate.c:
 	ReserveElements() not needed
-	Distinction between OriginalCount() and ElementCount() needed for ACCT report.
-	Structure Matrix has no "Original" member anymore, seems ELEMENTS plays this role.
+	Distinction between OriginalCount() and ElementCount() needed for ACCT report. Structure Matrix has no "Original" member anymore, seems ELEMENTS plays this role.
+
 spBuild.c:
 	int Min is initialized with LARGEST_LONG_INTEGER follows in -1, Min should be long int
+
 spSMP.c:
-	Return value of SMP functions: what is meant for spError? the typedef to int or the spErrorState function?
 	SMPfindElt() calls spcFindElement() - it is not available
-	Compiling with spSEPARATED_COMPLEX_VECTORS=0 follows in error like this:
-spSMP.c: In function ‘SMPcSolve’:
-spSMP.c:222:5: error: too many arguments to function ‘spSolve’
-  222 |     spSolve( (char *)Matrix, RHS, RHS, iRHS, iRHS );
-      |     ^~~~~~~
-In file included from spSMP.c:93:
-../../../src/include/ngspice/spmatrix.h:371:23: note: declared here
-  371 | spcEXTERN  void       spSolve( spMatrix, spREAL[], spREAL[] );
 
-This shows that prototypes are OK, but in the call of the function is no difference in parameter count.
+	Call's to spcXXX functions are correct for real, complex needed adaptions in arguments count
+	Prototypes in spmatrix.h are OK, but in the call of the function is no difference in parameter count.
+	E.g. compiling with spSEPARATED_COMPLEX_VECTORS=0 follows in error like this:
+	spSMP.c: In function ‘SMPcSolve’:
+	spSMP.c:222:5: error: too many arguments to function ‘spSolve’
+	222 |     spSolve( (char *)Matrix, RHS, RHS, iRHS, iRHS );
+		|     ^~~~~~~
+	In file included from spSMP.c:93:
+	../../../src/include/ngspice/spmatrix.h:371:23: note: declared here
+	371 | spcEXTERN  void       spSolve( spMatrix, spREAL[], spREAL[] );
+	
+	Function SMPreorder line 203 we have:
+	spSetComplex( (char *)Matrix );
 
-spConfig.h:
-#define  REAL                           YES
-#define  EXPANDABLE                     YES
-#define  TRANSLATE                      YES
-#define  INITIALIZE                     NO
-#define  DIAGONAL_PIVOTING              YES
-#define  ARRAY_OFFSET                   NO
-#define  MODIFIED_MARKOWITZ             NO
-#define  DELETE                         NO
-#define  STRIP                          NO
-#define  MODIFIED_NODAL                 YES
-#define  QUAD_ELEMENT                   NO
-#define  TRANSPOSE                      YES
-#define  SCALING                        NO
-#define  DOCUMENTATION                  YES
-#define  MULTIPLICATION                 YES
-#define  DETERMINANT                    YES
-#define  STABILITY                      NO
-#define  CONDITION                      NO
-#define  PSEUDOCONDITION                NO
-#define  FORTRAN                        NO
-#define  DEBUG                          YES
-#define  spCOMPLEX                      1
-#define  spSEPARATED_COMPLEX_VECTORS    1
+	But SMPreorder() is the function for real operation on the contrary to SMPcReorder().
+	Correct ngspice operation w/o segmentation fault in Solve we got with
+	spSetReal( (char *)Matrix );