I recently updated Cubase 8.5 to Cubase 9 the Cubase 9.5 Pro. It seems that the HALion Sonic SE version I have is SE 2 versus the SE 3 that supposed to come with 9.5. My HALion Sonic dll I see is dated in 2014 (Program Files\Common Files\Steinberg\Shared Components\HALion Sonic SE.dll). Does anyone have any idea why this would be and how can I update this to HALion Sonic 3?
Suggest that you run the full Cubase installer again and choose to install HSSE3 when prompted.
Or, you could go to the Steinberg support section and get the download for HSSE3 there. Also, there is a upgrade available for HSSE3 to 3.1.0. I’m not sure if you would have to apply the upgrade or if just installing it gives you the latest.