diff --git a/ChangeLog b/ChangeLog
index 742e52b..55e3a5f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,5 @@
 1.1.0
-	New parsing algorithm for the attractor-cycle notation. The previous convoluted solution did not always work for more than 9 states. Breaking change: the implementation now strictly follows the context-free grammar specification, thus the expression "[1|2,3,4]" is now treated as malformed.
+	New parsing algorithm for the attractor-cycle notation. The previous convoluted solution did not always work for more than 9 states. Breaking change: the implementation now strictly follows the context-free grammar specification, thus the expression "[1|2,3,4]" is now treated as malformed. Adding more tests for the notation. Technical function SgpDecTestInstall2 added to get some information on memory usage of tests.
 1.0.0
 	Covering Lemma implementation. Code for essential dependencies revised and corrected. Switching to Break Versioning.
 0.9.8
diff --git a/lib/acn.gd b/lib/acn.gd
index 57f28ea..44597dc 100644
--- a/lib/acn.gd
+++ b/lib/acn.gd
@@ -7,7 +7,4 @@ DeclareGlobalFunction("AttractorCycleNotation");
 DeclareGlobalFunction("SimplerAttractorCycleNotation");
 
 DeclareGlobalFunction("CycleOfTransformationFromPoint");
-
-DeclareGlobalFunction("SplitStringAtPositions");
-
 DeclareGlobalFunction("DotTransformation");
diff --git a/lib/acn.gi b/lib/acn.gi
index f95e145..e3cf278 100644
--- a/lib/acn.gi
+++ b/lib/acn.gi
@@ -2,6 +2,7 @@
 ##  SgpDec                        Attractor-cycle notation for transformations
 ##  Copyright (C) 2009-2024                             Attila Egri-Nagy et.al
 ################################################################################
+# Functions only used here are prefixed by ACN.
 
 ###############################################################################
 # TRANSFORMATION -> ATTRACTOR-CYCLE NOTATION ##################################