All valid previous version serial numbers for Voxler and Strater can be upgraded to the current version at a rate that is discounted from the price of a new license. Upgrade prices can be found on each product's webpage and upgrade instructions can be found here: How do I purchase an upgrade?
To be eligible for upgrade pricing, the serial number must be registered to the purchaser and must not have been previously upgraded. If you're unsure if your serial number qualifies, please contact Golden Software.
Upgrades for Surfer and Grapher perpetual licenses have replaced by software maintenance, which includes benefits such as free priority support and free updates to the newest version. One free year of software maintenance is included with each purchase of a perpetual license. Please see the articles Renew software maintenance for information about how to renew your software maintenance and gain access to the latest version.
Updated March 2022