Questions? Email us: sales@haneng.com   Upgrade Do you own HanengCharts 3.0? You can upgrade to version 3.1 for free. Enterprise License HanengCharts 3.x Domain License owners can upgrade to the Enterprise License at any time at a discounted price. Please contact sales for details: sales@haneng.com Do you own HanengCharts 2.0, 2.5 or 2.6? If you purchased HanengCharts before May 1st. 2005 you can upgrade to 3.1 at a 50% upgrade discount. Please contact sales for more information: sales@haneng.com If you purchased HanengCharts after May 1st. 2005 you can upgrade to 3.1 for free. Please contact sales for more information: sales@haneng.com Do you own HanengCharts 1.x or HanengCharts PRO 1.x? Upgrade to HanengCharts 3.1 at a 50% upgrade discount today! Please contact sales for more information: sales@haneng.com