Blue Cat's Gain Suite full changelog

More link groups: now supports up to 26 groups (instead of 9).
Mono and stereo linking: instances can now be linked across both mono and stereo tracks (the stereo plug-in can now also be used on mono tracks).
MIDI Control:
All plug-in parameters can now be controlled with MIDI notes, pitch bend, NRPN, 14-bit CCs, aftertouch or channel pressure, in addition to existing MIDI CC.
New MIDI "learn once" mode for parameters control (deactivates itself once learned).
Plug-in can now send Bank Select and Program Change messages upon changes in the user interface to keep in sync with external controllers.
Fixed plug-in sending Bank number 0 when loading a preset that is not located in a bank.
Fixed audio dropouts when navigating presets via next/previous and plug-in set to send MIDI Program Change messages.
User Interface:
Windows multitouch support (manipulate multiple controls at the same time with several fingers).
Windows accessibility: native system widgets are now scaled according to text size settings on Windows 8 and newer in settings windows.
Can now follow host zoom in Blue cat Audio hosts.
Fixed window opacity changes not shown in plug-in when host application modifies it.
Fixed selected text in text edit box sometimes not easy to read on Mac depending on the color scheme.
Fixed text edit boxes sometimes losing focus when hovering mouse over other controls.
Fixed revert current preset not always triggering undo properly.
Windows: fixed return key sometimes unexpectedly forwarded to host while typing in a text edit box.
Presets Management:
Find currently selected preset easily in the menu (folders containing the preset now display a check mark).
Show current preset in Finder/Windows Explorer.
New option to cycle next/previous preset in current bank only.

Refreshed GUI design, with improved usability and improved touchscreen support.
The GUI can now be zoomed from 70% to 200%.
Added Retina displays support on Mac (text and graphs using high resolution).
Last loaded preset is now remembered in session and displayed in the presets menu.
Plug-in state can now be reverted to the last loaded preset.
New installer on Mac.
Fixed minor compatibility issues with Mac OS High Sierra and Mojave.
Dropped support for Windows XP and Mac OS X 10.6 and earlier.
Dropped support for legacy DirectX plug-in format.

New Features:
Copy/paste the plug-in's current state from the presets menu using the system clipboard.
Improvements:
Reduced the plug-in's memory usage.
Windows VST Installer now remembers where the plug-in was initially installed to simplify upgrades.
Bug Fixes:
(Win) Alt-Click on a control now resets the value to default in Pro Tools, as expected.
Fixed version number reported to host application for VST and Audio Unit versions.

Bug Fixes:
· Performance improvement when running under high CPU load for other platforms.