diff --git a/.gitignore b/.gitignore
index 69b0dadb..d3b907a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,4 +32,6 @@ install/logging/logstash-*.zip
 # JaCoCo Reports
 /target
 /jacoco-reports
-/test-screenshots
\ No newline at end of file
+/test-screenshots
+
+*.cnf
\ No newline at end of file
diff --git a/create_server_dist.sh b/create_server_dist.sh
index c0760c18..cc757833 100755
--- a/create_server_dist.sh
+++ b/create_server_dist.sh
@@ -19,7 +19,7 @@ print 'Removing previous distribution directory...'
 rm -rf ${DIST}
 
 print 'Creating new CWS distribution directory...'
-mkdir -p ${CWS}/{bpmn,config/templates,installer,logs,sql/cws}
+mkdir -p ${CWS}/{bpmn,config/templates,installer,logs,upgrade,sql/cws}
 
 print 'Unzipping Camunda into distribution...'
 unzip ${INSTALL_DIR}/cws_camunda-bpm-tomcat-${CAMUNDA_VER}.zip -x start-camunda.bat start-camunda.sh -d ${CWS} > ${CWS}/logs/camunda_extract.log 2>&1
@@ -219,6 +219,10 @@ cp ${INSTALL_DIR}/launch_ls.sh                         ${CWS}
 print 'Copying Modeller scripts and libraries...'
 cp -R ${INSTALL_DIR}/modeler                    ${CWS}
 
+print 'Copying Upgrade scripts...'
+cp -R ${INSTALL_DIR}/upgrade/upgrade_to_2.4.sh         ${CWS}/upgrade
+cp -R ${INSTALL_DIR}/upgrade/README.md                 ${CWS}/upgrade
+
 print 'Installing context.xml to Tomcat...'
 cp ${INSTALL_DIR}/context.xml ${CWS_TOMCAT_ROOT}/conf/context.xml
 
diff --git a/install/upgrade/README.md b/install/upgrade/README.md
new file mode 100644
index 00000000..8adf341c
--- /dev/null
+++ b/install/upgrade/README.md
@@ -0,0 +1,24 @@
+# CWS v2.4 Database Upgrade
+
+### Use this script before installing CWS v2.4 to update your database schema.
+
+#### _NOTICE: Once you've used this upgrade script, preserve your existing data by answering 'No' to the cws installation prompted: Do you want this script to drop and re-create the database for you, so that you have a clean install?_
+
+This upgrade helps to prepare the database of older CWS versions, previous to v2.4, to be used for new installations of CWS v2.4. The script updates the existing database schema to match CWS v2.4 core. This gives the user the option of preserving data and migrating to CWS v2.4 without blowing up the database.
+
+### Update Actions:
+
+* *Script updates to database* : 
+  * Alter database table *cws_worker* to add new column `max_num_running_procs`
+  * Remove existing worker data from tables `cws_worker`, `cws_worker_proc_def`, `cws_log_usage`
+
+To run the commands:
+
+
+```
+cd install/upgrade/
+```
+
+```
+./upgrade_to_2.4.sh
+```
\ No newline at end of file
diff --git a/install/upgrade/upgrade_to_2.4.sh b/install/upgrade/upgrade_to_2.4.sh
new file mode 100755
index 00000000..3a97a532
--- /dev/null
+++ b/install/upgrade/upgrade_to_2.4.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+# -------------------
+# upgrade_to_2.4.sh
+# -------------------
+# Update previous version of CWS database schema to CWS v2.4 core schema
+ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+read -p "Would you like to upgrade the CWS database schema to CWS v2.4?  (Y/N): " UPGRADE_DB
+while [[ ! ${UPGRADE_DB} =~ $(echo "^(y|Y|n|N)$") ]]; do
+  echo "  ERROR: Must specify either 'Y' or 'N'.";
+  read -p "Continue? (Y/N): " UPGRADE_DB
+done
+
+if [[ ${UPGRADE_DB} =~ $(echo "^(y|Y)$") ]]
+then
+  echo " "
+  echo "[Enter Your Database Configuration]"
+  read -p 'DB Host: ' DB_HOST
+  read -p 'DB Name: ' DB_NAME
+  read -p 'DB Port: ' DB_PORT
+  read -p 'DB Username: ' DB_USERNAME
+  read -sp 'DB Password: ' DB_PASSWORD
+  echo " "
+  echo " "
+  echo "Your database Configuration is:"
+  echo "   DB HOST:       ${DB_HOST}"
+  echo "   DB NAME:       ${DB_NAME}"
+  echo "   DB PORT:       ${DB_PORT}"
+  echo "   DB USERNAME:   ${DB_USERNAME}"
+  echo "   DB PASSWORD:   [PASSWORD]"
+  echo " "
+
+  while [[ ! ${CREDS_DB} =~ $(echo "^(y|Y|n|N)$") ]]; do
+    read -p "Do you want to continue with the database upgrade? (specify either 'Y' or 'N'):  " CREDS_DB
+  done
+fi
+
+if [[ ${CREDS_DB} =~ $(echo "^(y|Y)$") ]]
+then
+  echo " "
+  echo "[mysql]" > ${ROOT}/myupgrade.cnf
+  echo "host=${DB_HOST}" >> ${ROOT}/myupgrade.cnf
+  echo "user=\"${DB_USERNAME}\"" >> ${ROOT}/myupgrade.cnf
+  echo "password=\"${DB_PASSWORD}\"" >> ${ROOT}/myupgrade.cnf
+  echo "port=\"${DB_PORT}\"" >> ${ROOT}/myupgrade.cnf
+  chmod 644 ${ROOT}/myupgrade.cnf
+
+  echo "Checking number of CORES on machine..."
+
+  if [[ "$OSTYPE" =~ ^darwin ]]; then
+    CORE_NUMBER=`sysctl -n hw.ncpu`
+    echo "  CORE: " ${CORE_NUMBER}
+  fi
+  if [[ "$OSTYPE" =~ ^linux ]]; then
+    CORE_NUMBER_=`lscpu -b -p=Core,Socket | grep -v '^#' | sort -u | wc -l`
+    echo "  CORE: " ${CORE_NUMBER}
+  fi
+
+  echo "Checking whether database ${DB_NAME} already exists..."
+  RES=`mysql --defaults-file=${ROOT}/myupgrade.cnf -e "SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '${DB_NAME}'"`
+
+  if [[ $? -gt 0 ]]; then
+    echo "ERROR: Problem checking for database. "
+    echo "  Please check your database configuration, and try again."
+    rm -f ${ROOT}/myupgrade.cnf
+    rm -rf ${ROOT}/upgrade_core_db.sql
+    exit 1
+  fi
+
+  FOUND=`echo $RES | grep ${DB_NAME} | wc -l`
+
+  if [[ ${FOUND} -eq 1 ]]; then
+      echo "  Database ${DB_NAME} exists."
+      echo " "
+      echo "Updating tables in CWS CORE DB..."
+
+      cat > ${ROOT}/upgrade_core_db.sql <<- EOF
+      DELETE FROM cws_log_usage;
+      DELETE FROM cws_worker_proc_def;
+      DELETE FROM cws_worker;
+      ALTER TABLE cws_worker ADD max_num_running_procs int(11) DEFAULT ${CORE_NUMBER} AFTER job_executor_max_pool_size;
+EOF
+
+      mysql --defaults-file=${ROOT}/myupgrade.cnf ${DB_NAME} < ${ROOT}/upgrade_core_db.sql
+
+      if [[ $? -gt 0 ]]; then
+          echo "ERROR: Problem updating tables. Database Column may already exist."
+          echo "  Please check your database upgrade sql template '${ROOT}/upgrade_core_db.sql', and try again."
+          cat ${ROOT}/upgrade_core_db.sql
+          cat ${ROOT}/myupgrade.cnf
+          rm -rf ${ROOT}/myupgrade.cnf
+          rm -rf ${ROOT}/upgrade_core_db.sql
+          exit 1
+      fi
+      rm -rf ${ROOT}/myupgrade.cnf
+      rm -rf ${ROOT}/upgrade_core_db.sql
+		  echo "   Upgrade to CWS Database was made."
+  else
+      echo "   Database ${DB_NAME} DOES NOT exists. Please check your database configuration"
+  fi
+else
+		echo "   Upgrade to CWS Database was NOT made."
+	  rm -rf ${ROOT}/myupgrade.cnf
+    rm -rf ${ROOT}/upgrade_core_db.sql
+fi