PreSonus has announced that all of its current software and hardware products with the latest firmware are compatible with Windows 10.
This applies to both 64-bit and 32-bit versions, and includes products such as Studio One 3, Notion 5, StudioLive AI mixers, and AudioBox interfaces.
Go here for a complete list of PreSonus products and firmware versions that have been tested and confirmed to be compatible with Windows 10.