I certainly wouldn't! Every time Microsoft brings out a new version you have to go through an extensive process to ensure your business is running on the latest version of Exchange. I say leave this to Microsoft and replace your ageing Microsoft Exchange Server with Microsoft Office 365 in the cloud, sit back and let them do all the hard work.
MS Office 365 includes Exchange Online, SharePoint Online, Lync Online, and Office Professional Plus, a whole suite of applications that will improve productive and aid collaboration within your business.
There are two many advantages to moving to Office 365 to mention, but here are a few:
Free up your IT staff – Instead of managing boxes, your IT staff can focus on activities that really add value to your business
Access Anywhere – Your staff can access email anywhere and on and device.
Scalability – Pay for what you use. As your company expands simply add on user licenses, perfect for your growing company.
Reliability - Microsoft backs Office 365 with a 99.9% SLA that pays the customer back in cash if there is any significant downtime. Your email system is no longer reliant on your Internet connection in to your building.
Collaboration - Lync Online brings the powerful collaboration tools like video conferencing, screen sharing, and presence awareness to your business
And not only this, Microsoft have recently reduced the cost of Microsoft Office 365, so what are you waiting for? Follow this link for a Free Trial.