It depends on where you purchased it from. Please take a look at the following questions to find out how to get the update:
Question: I have purchased Hexagon 2. How do I get the updated version of Hexagon 2.5?
Answer: You will simply need to reset your Hexagon 2 in your 'Itemized Order History'. This will give you the most recent update to Hexagon 2.5 for free. If you have further questions please feel free to contact our sales Department.
Question: I have purchased Hexagon 2 from Eovia, when and how will I get my upgrade to Hexagon 2.5?
Answer: Our support team is working on getting our customers that have purchase Hexagon 2 from Eovia the updated Hexagon 2.5 into the account. This is taking long then expected but our customers will have Hexagon 2.5 in their account shortly.
Question: I have purchased Hexagon 2 OEM, how will I receive the updated version of Hexagon 2.5?
Answer: This has been added to your account. You will simply need to reset your download for Hexagon 2 OEM this will put Hexagon 2.5 in your 'Available Download' section. Feel free to contact our sales department if you require any further assistance.