lmdsp has updated their Superchord sympathetic string resonance plug-in to version 1.2.1.
This recommended maintenance update includes:
Windows version is now 64-bit only.
Resonator polarity setting for extended sonic possibilities.
macOS 10.11 El Capitan and above is now required.
Various other improvements and bugfixes.
Updated installers are available in the download area, and a detailed list of changes can be found here.