Backup your old files & database then download the product package in your account area, extract the ZIP file to local computer.
Then replace in your hosting server:

General update & improvements:
-. replace file /public_html/eg_license.php
-. replace file /public_html/includes/eg_mysql.php
-. replace file /public_html/includes/eg_filter.php
-. replace file /public_html/includes/eg_cron.php
-. replace file /public_html/includes/eg_payment.php
-. replace file /public_html/includes/eg_general.php
-. replace file /public_html/includes/eg_local.php
-. replace file /public_html/includes/setting_inc.php
-. replace file /public_html/includes/eg_fields.php
-. replace file /public_html/includes/eg_config.php


New payment plugin, Blockchain:
-. Upload directory /public_html/includes/payments/blockchain/
-. Upload /public_html/themes/***folder_name***/member/member_payment_blockchain.html
-. Upload /public_html/update.php. and Run yoursite.com/update.php

New withdrawal plugin, Blockchain:
-. Upload /public_html/includes/eg_withdrawal.php
-. Upload directory /public_html/includes/withdrawals/blockchain/

New payment plugin, Coinbase:
-. Upload directory /public_html/includes/payments/coinbase/

New withdrawal plugin, Coinbase:
-. Upload directory /public_html/includes/withdrawals/coinbase/

Remove Egopay payment:
-. remove directory /public_html/includes/payments/egopay

Remove Egopay withdrawal:
-. remove directory /public_html/includes/withdrawals/egopay

Update database backup:
-. replace file /public_html/admin/includes/manage_backup.php

Added HTTP API to feature of Sms notification:
-. replace file /public_html/includes/eg_mail.php
-. replace file /public_html/admin/includes/config_sms.php
-. replace file /public_html/includes/languages/***language_name***/admin/config_sms.php
-. replace file /public_html/includes/languages/***language_name***/admin/configuration.php
-. replace file /public_html/themes/***folder_name***/admin/admin_config_sms.html


Upgrading Smarty template engine to version 3:
Optional, Do not update if you are not able to replace all files below.
-. replace file /public_html/js/custom.js
-. Replace all template file /public_html/themes/
-. Replace file /public_html/includes/eg_templater.php
-. Upload directory /public_html/includes/smarty/