Hi Petra,
Could you please clarify what you mean by Helix 2? Do you mean Helix Ultimate 2.x, or are you referring to the older Helix II framework (which was discontinued a long time ago)?
This update is only for the Helix3 framework, not for the Helix Ultimate framework.
Although both frameworks are developed by us, they are separate frameworks with different structures and update paths. This update does not apply to Helix Ultimate.
We also do not recommend using both frameworks on the same website, as it may cause compatibility issues.
Thanks!
Best regards,