MIDI 2.0 is an updated version of the original MIDI (Musical Instrument Digital Interface) standard, which was first introduced in 1983. This new version enhances the way electronic musical instruments communicate, allowing for more detailed and expressive musical performances. It supports higher resolution for note velocity and pitch, enabling musicians to convey subtle nuances in their playing. Additionally, MIDI 2.0 introduces new features like per-note control, which allows for individual adjustments of each note in a chord. This upgrade also improves compatibility with modern technology, making it easier for musicians to integrate various devices and software in their creative processes.