# Upgrading from Simplygon 8 to 9 - general information

Below are the basic steps that needs to be taken when upgrading from Simplygon 8 to Simplygon 9;

  • Start by re-installing your license!
  • Be sure to check out the API changes.
  • If you have been working with Batch or SPL files, don't miss the guide to upgrade Simplygon Batch and SPL.
  • Simplygon Grid has been re-written to be more powerful and flexible. More information in the Grid upgrade section.
  • A lot of work has also gone into improving the 3ds Max and Maya integrations. More information in Max migration and Maya migration guides.
  • Important for especially Free users is also the discontinuation of the Simplygon UI, which has transitioned into a UI for each integration respectively instead. See the UI upgrade section for more information.