KINDZAudio has released DDPressor, a Multi-band Compressor, Expander, Limiter, and Gate plug-in for Windows and MacOS. They're saying:
DDpressor is dynamics scalpel in your hands to control any dynamic aspect of processing audio. 4 bands, 3 splits with 4 split algorithms each, 1Pole for clean split, Butterwoth, Chebyshev, Chebyshev 2 for harmonics rich split. Compress, Limit, Gate or Expand each band. Selective frequency Sidechain, External Sidechain for each band. Clean interface with nice visual representation of processing. Right mouse button to control parameter on all bands simultaneously. Hold Ctrl for precise control.