add spectrogram display mode, per-item spectrogram option - video
improve support for editing media items containing .wav files which are being recorded in a separate tab
support swing grid in arrange view, optionally synchronized with MIDI editor grid - video
allow grid/snap window to stay open if enabled in advanced preferences
move grid appearance options from grid/snap window to preferences/appearance
allow absolute MIDI CC control of swing grid strength
create new take on "open item copy in built-in MIDI editor" action •
set MIDI clock properly when exporting to .mid file • ...
support item_*_hidpi.png on Windows/HiDPI themes
use common dialog font for various elements in envelope, send windows
allow themes to override global UI scaling using rtconfig.txt global_scale line ...
Notation editor: NEW in 5.20 - Compose and edit MIDI as musical notation, or view and edit recorded MIDI. Flexible mouse editing, key signatures, multiple clefs, dynamics, voices, lyrics, tuplets, articulation, ornaments, slurs, and more.
FX:VST3 support, sample-accurate automation for VST3 and JSFX, FX browser improvements.
ReaScript:API and scripting improvements, including a built-in development environment for creating and debugging scripts in Lua, EEL, or Python. Create anything from simple macros, to complex new functionality.
Control grouping:Flexible, automatable VCA control. Link groups of track controls together at any point in the signal flow.
Video:Many improvements to video support and performance, including real-time programmable track and item effect processing.
FX parameter automation:Full automation and MIDI/OSC learn support for per-take FX, improved FX envelope and modulation management via the Project Bay, increased automation recording speed.
New GUI layouts, Media Explorer improvements, metronome beat patterns, Opus support, MIDI note-off editing, new volume envelope modes, new actions and API functions, and many other fixes and improvements