The only difference between educational licenses and commercial licenses is that educational licenses have an expiration date. Functionally, there's no difference at all - both licenses allow you to do exactly the same things in SketchUp. Because educational licenses expire, though, we're able to offer free version upgrades on educational licensees, and no maintenance fees. Commercial licenses never expire, but there is an additional cost to upgrade (or an additional cost when buying a new license), unless otherwise noted.
If you purchased or received your SketchUp Pro educational license from a reseller (the serial number does not end in -ALW or -alm), please contact the reseller for more information. If you purchased or received your SketchUp Pro education license from Trimble, then please contact us for assistance upgrading the license.
To order a new (or to renew) your SketchUp Pro educator license, contact your local reseller who will fulfill your request. In order to complete the license request, they will require proof of academic verification. Educator licenses expire one year from the date they were generated, and you can apply each year for a new license, so long as you are still an educator.