Ample Sound shipped version 4.01 for Ample Guitar across 14 virtual instruments that address macOS permission problems affecting MIDI operations and Riff file management. The company restored interface scaling from 50 percent to 200 percent and corrected tuning file conflicts that emerged when users loaded multiple instances with different sample libraries. Developers resolved a Studio One crash triggered by guitar switching during Undo operations in Riffer and fixed note triggering problems in Fifth and Octave play modes. The piano roll preview function prioritizes the current position when users click keyboard notes. Existing customers can download the update at no charge through their MyAmpleSound accounts. The manufacturer offers the Ample Guitar Series at 25 percent off through October 9.