diff --git a/html/fcl/tipper.cpp b/html/fcl/tipper.cpp
index b8c2a8c..45abea9 100644
--- a/html/fcl/tipper.cpp
+++ b/html/fcl/tipper.cpp
@@ -84,7 +84,7 @@ void FunctionBlock_tipper::calc_No1() {
 			double x = 0.0 + i * 0.03;
 			double membership = membership_tip_cheap(x);
 			double y = ruleActivationMethod_min( degreeOfSupport_1 , membership );
-			defuzzify_tip[i] += ruleAccumulationMethod_max( defuzzify_tip[i], y );
+			defuzzify_tip[i] = ruleAccumulationMethod_max( defuzzify_tip[i], y );
 		}
 	}
 
@@ -95,7 +95,7 @@ void FunctionBlock_tipper::calc_No1() {
 			double x = 0.0 + i * 0.03;
 			double membership = membership_tip_average(x);
 			double y = ruleActivationMethod_min( degreeOfSupport_2 , membership );
-			defuzzify_tip[i] += ruleAccumulationMethod_max( defuzzify_tip[i], y );
+			defuzzify_tip[i] = ruleAccumulationMethod_max( defuzzify_tip[i], y );
 		}
 	}
 
@@ -106,7 +106,7 @@ void FunctionBlock_tipper::calc_No1() {
 			double x = 0.0 + i * 0.03;
 			double membership = membership_tip_generous(x);
 			double y = ruleActivationMethod_min( degreeOfSupport_3 , membership );
-			defuzzify_tip[i] += ruleAccumulationMethod_max( defuzzify_tip[i], y );
+			defuzzify_tip[i] = ruleAccumulationMethod_max( defuzzify_tip[i], y );
 		}
 	}
 
diff --git a/out/artifacts/jFuzzyLogic_jar/jFuzzyLogic.jar b/out/artifacts/jFuzzyLogic_jar/jFuzzyLogic.jar
new file mode 100644
index 0000000..4db8b79
Binary files /dev/null and b/out/artifacts/jFuzzyLogic_jar/jFuzzyLogic.jar differ
diff --git a/src/main/java/META-INF/MANIFEST.MF b/src/main/java/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..ff822c2
--- /dev/null
+++ b/src/main/java/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: net.sourceforge.jFuzzyLogic.JFuzzyLogic
+
diff --git a/src/main/java/net/sourceforge/jFuzzyLogic/JFuzzyLogic.java b/src/main/java/net/sourceforge/jFuzzyLogic/JFuzzyLogic.java
index f0eb1ff..d28a34f 100644
--- a/src/main/java/net/sourceforge/jFuzzyLogic/JFuzzyLogic.java
+++ b/src/main/java/net/sourceforge/jFuzzyLogic/JFuzzyLogic.java
@@ -1,5 +1,6 @@
 package net.sourceforge.jFuzzyLogic;
 
+import net.sourceforge.jFuzzyLogic.ruleConnectionMethod.Szczepanski;
 import org.antlr.runtime.RecognitionException;
 
 import net.sourceforge.jFuzzyLogic.demo.tipper.TipperAnimation;
@@ -20,10 +21,10 @@ public class JFuzzyLogic {
 	// Version info
 	public static final String SOFTWARE_NAME = "JFuzzyLogic";
 	public static final String REVISION = "";
-	public static final String BUILD = "2015-04-09";
-	public static final String VERSION_MAJOR = "3.3";
+	public static final String BUILD = "2022-05-12";
+	public static final String VERSION_MAJOR = "4.0";
 	public static final String VERSION_SHORT = VERSION_MAJOR + REVISION;
-	public static final String VERSION_NO_NAME = VERSION_SHORT + " (build " + BUILD + "), by " + Pcingola.BY;
+	public static final String VERSION_NO_NAME = VERSION_SHORT + " (build " + BUILD + "), by " + Pcingola.BY + " and " + Szczepanski.BY;
 	public static final String VERSION = SOFTWARE_NAME + " " + VERSION_NO_NAME;
 
 	public static boolean debug = false;
diff --git a/src/main/java/net/sourceforge/jFuzzyLogic/ruleActivationMethod/RuleActivationMethod.java b/src/main/java/net/sourceforge/jFuzzyLogic/ruleActivationMethod/RuleActivationMethod.java
index 55a9bca..91a3748 100644
--- a/src/main/java/net/sourceforge/jFuzzyLogic/ruleActivationMethod/RuleActivationMethod.java
+++ b/src/main/java/net/sourceforge/jFuzzyLogic/ruleActivationMethod/RuleActivationMethod.java
@@ -148,7 +148,7 @@ public abstract class RuleActivationMethod extends FclObject {
 			out.append("\t\t\tdouble y = " + toStringCpp() + "( " + degreeOfSupportName + " , membership );\n");
 
 			// Aggregate value
-			out.append("\t\t\t" + variable.toStringCppDefuzzifyVarName() + "[i] += " + ruleAccumulationMethod.toStringCpp() + "( " + variable.toStringCppDefuzzifyVarName() + "[i], y );\n");
+			out.append("\t\t\t" + variable.toStringCppDefuzzifyVarName() + "[i] = " + ruleAccumulationMethod.toStringCpp() + "( " + variable.toStringCppDefuzzifyVarName() + "[i], y );\n");
 			out.append("\t\t}\n");
 			out.append("\t}\n");
 		}
diff --git a/src/main/java/net/sourceforge/jFuzzyLogic/ruleConnectionMethod/Szczepanski.java b/src/main/java/net/sourceforge/jFuzzyLogic/ruleConnectionMethod/Szczepanski.java
new file mode 100644
index 0000000..a77d999
--- /dev/null
+++ b/src/main/java/net/sourceforge/jFuzzyLogic/ruleConnectionMethod/Szczepanski.java
@@ -0,0 +1,11 @@
+package net.sourceforge.jFuzzyLogic.ruleConnectionMethod;
+
+/**
+ * Author's data
+ * @author marcin-szczepanski
+ */
+public class Szczepanski {
+
+	public static final String EMAIL = "marcin.szczepanski@amu.edu.pl";
+	public static final String BY = "Marcin Szczepanski";
+}
diff --git a/src/main/resources/META-INF/MANIFEST.MF b/src/main/resources/META-INF/MANIFEST.MF
new file mode 100644
index 0000000..ff822c2
--- /dev/null
+++ b/src/main/resources/META-INF/MANIFEST.MF
@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+Main-Class: net.sourceforge.jFuzzyLogic.JFuzzyLogic
+