VCV Rack changelog

In this document, Ctrl means Command (⌘) on Mac.

2.5.3 (2025-03-26)

• Fix failure to launch on Windows 7.
• Rack Pro
  • Audio Unit: Fix crash when sending multiple MIDI CC messages to plugin simultaneously.

2.6.2 (2025-03-17)

• Fix incorrect audio driver being loaded from patches made in Rack ≤2.6.0.
• Fix Mac installer creating duplicate app bundle.

2.6.1 (2025-03-14)

• Add UI translations for:
  • German
  • Spanish
  • French
  • Italian
  • Chinese (Simplified)
  • Japanese
• Add Chinese, Japanese, and emoji fonts.
• Accept Unicode text in text fields.
• Add "View > UI scale" menu setting.
• Add note voltage constants to parameter expression evaluator such as C4v, A#5v, Gb0v, etc.
• Allow installing to user Applications and plugin folders on Mac.
• Remember last patch and selection folder after creating a new patch.
• Fix loading/saving patches on Mac x64.
• Fix non-ASCII audio device names displaying as blank on Windows.
• Fix key command mapping and names on non-QWERTY keyboard layouts.
• Use Mac-native arrow key commands for navigating text fields.
• Rack Pro
  • Fix automation parameter values resetting to 0.0 upon initialization in VST3 in some DAWs.
  • Allow VST3 plugin to receive 16 MIDI channels of MIDI CC, pitch bend, and channel aftertouch.
  • Improve CLAP plugin loading speed.
• Core
  • Fix DC filter accuracy of Right input when normalled to Left input in VCV Audio 2.
  • Change default MIDI CC numbers of VCV MIDI CC to CV and VCV CV to MIDI CC modules to 1-16 instead of 0-15.
• API
  • Add Widget::KeyBaseEvent::isKeyCommand() for checking key commands on all keyboard layouts.
  • Add settings::language global variable.
  • Add string::UTF32toUTF8(), UTF8toUTF32(), and UTF8*() functions.
  • Update to zstd 1.5.6 and libarchive 3.7.7.
  • Update RtAudio.

2.6.0 (2024-11-20)

• Add ability to grab all plugs stacked on a port with the "All cables" menu item.
• When dropping a plug on a port, always stack it on top of other plugs.
• Add "View > Zoom to fit modules" to menu bar with key command F4.
• Add "Zoom to fit" to module context menu with key command Ctrl+F4.
• Add "View > Mouse wheel" setting to make mouse wheel zoom instead of scroll.
• Add parameter value functions vtobpm() and bpmtov().
• On non-QWERTY keyboards, use QWERTY key positions for key commands instead of letters.
• Render 2-stop linear/radial gradients with any stop offsets and transformations in SVG.
• Rack Pro
  • Fix VST3 plugin forcing DAW MIDI input to channel 1.
  • Allow VST3 plugin to receive MIDI CC, pitch bend, and channel aftertouch.
• Core
  • MIDI to CV: When sustain pedal is released in monophonic mode, turn off gate if no notes are held.
• API
  • Don't combine SDK packages for Mac-x64 and Mac-arm64.
  • Update to libcurl 8.10.0 and OpenSSL 3.3.2.
  • Add dsp::MidiParser class.

2.5.2 (2024-05-09)

• Add configurable cable color labels.
• When duplicating module with cables, duplicate cables connected to module's outputs as well as inputs.
• Allow building multi-arch x64+arm64 "Universal" Mac binary.
• Optimize engine's cable stepping algorithm to be as CPU-efficient as non-stackable inputs.
• Limit log file size to 10 MB.
• API
  • Define ARCH_* macros in arch.hpp header (included in rack.hpp) instead of in compiler flags.

2.5.1 (2024-04-16)

• Remember the last selected cable color from the port's "New cable" menu item. When "Auto-rotate cables" is enabled, the next color in the rotation is used.
• Fix crash when modules such as VCV MIDI-Map bind parameters.
• If loaded patch contains unavailable modules, don't close Rack after user chooses to open them in VCV Library. Instead, load patch without these modules so user can download them.
• Add error dialog if moving Rack's user folder to new location fails.

2.5.0 (2024-04-08)

• Allow stacking cables on input ports. Cable voltages are summed.
• Ask to view unavailable modules on the VCV Library when loading a patch.
• Add "View > Cable colors" menu to edit cable colors and disable auto-rotating colors.
• Add parameter value functions gaintodb() (gain factor to decibels), dbtogain(), vtof() (1V/octave voltage to frequency), and ftov().
• Move Rack user folder to:
  • Mac: ~/Library/Application Support/Rack2
  • Windows: AppData/Local/Rack2
  • Linux: ~/.local/share/Rack2
• Update Mac icon.
• If Microphone permission is blocked on Mac, show warning dialog on startup.
• Add "verifyHttpsCerts" setting to disable verifying HTTPS certificates.
• Rack Pro
  • Fix MIDI note velocity scale in CLAP adapter.
• API
  • Don't zero output port voltages when disconnecting cables.
  • Fix ExpanderChangeEvent not being dispatched when removing an adjacent module.

2.4.1 (2023-08-24)

• Improve module browser search order.
• Fix Library menu plugin update items not being re-enabled when downloading is completed.
• Rack Pro
  • Fix discarded MIDI input messages for all plugin adapters.
• API
  • Add LightButton to component library.
  • Use SSE4.1 intrinsics in simd::trunc, floor, ceil, round, and fmod to improve performance.

2.4.0 (2023-08-07)

• Add "View > Use dark panels if available" menu item.
• Show module ID in module's Info menu.
• Fix order of input MIDI messages having the same frame timestamp. This fixes VCV MIDI to CV from sometimes duplicating clock pulses when transport starts.
• Move plugins folder to <Rack user folder>/plugins-<OS>-<CPU>.
• Core
  • Add dark panels.
• Rack Pro
  • Add CLAP FX and Generator plugin adapters in addition to existing Instrument plugin.
  • Fix file dialogs from sometimes loading/saving the wrong Rack plugin instance when multiple instances are running.
  • Fix crash when using Mac VST3 and AU plugins simultaneously in a DAW.
  • Fix crash when removing one of multiple running plugin instances in Studio One.
  • Fix CLAP plugin discarding output MIDI messages.
• API
  • Add ThemedSvgPanel and ThemedSvgScrew classes which automatically switch SVGs when dark panels are toggled.
  • Add "minRackVersion" property to plugin manifest, which prevents Rack from downloading plugin if version is not compatible.
  • Fix ContextCreateEvent and ContextDestroyEvent not defining vg NanoVG context.

2.3.0 (2023-03-08)

• Add "View > Themes" menu with new UI themes: light and high-contrast dark.
• Fix file permissions resulting in error when loading certain patches.
• Don't select modules on click when module positions are locked.
• Fix small memory leak when pasting modules or selections.
• Fix incorrect panel scale when moving window between screens with different scale.
• Rack Pro
  • Don't force MIDI output message channel to 1 in VST3 adapter. Offer all 16 channels.
  • Fix aftertouch and polyphonic pressure on all MIDI channels in VST3 and CLAP adapters.
• API
  • Make ParamQuantity::set/getValue() set/get the Param's target value of the Engine's per-sample smoothing algorithm instead of the Param's immediate value. Add ParamQuantity::set/getImmediateValue(). Deprecate ParamQuantity::set/getSmoothValue().
  • Add dsp::polyDirect(), dsp::polyHorner(), and dsp::polyEstrin().
  • Rename dsp::approxExp2_taylor5() to dsp::exp2_taylor5() and improve polynomial coefficients.
  • Add color::lerp().
  • Add BooleanTrigger::processEvent() and SchmittTrigger::processEvent().
  • Add get() helper function for std::vector.

2.2.3 (2023-01-25)

• Place module selection nearest to mouse position when pasted and nearest to the center of the rack viewport when imported.
• Allow custom menu items to be appended to port's context menu.
• Fix ignored MIDI input messages while using small audio block sizes.
• Rack Pro
  • Fix hang when dialog box opens on Windows, such as after syncing library plugins.
  • Enable Loopback MIDI driver in all plugin adapters.
  • Fix MIDI CC output of VST3 adapter.
  • Fix Windows installer not overwriting existing VST3 plugin bundle on Windows.
  • Store and recall window size of VST3.
  • Fix MIDI clock input in CLAP adapter.
  • Make CLAP adapter a Note Effect and Audio Effect as well as an Instrument.
• API
  • Make unarchiver handle zero-byte files as a special case by deleting destination files instead of overwriting them. This allows plugin packages to remove old presets by including a zero-byte file with its filename.
  • Add ModuleWidget::getModule<TModule>() convenience method.

2.2.2 (2022-12-27)

• Display Rack edition, version, OS, CPU, and plugin type in menu bar to help with troubleshooting.
• Add long-form command line options.
• Zero audio output of all channels in audio::Device::processBuffer() before writing, to avoid sending uninitialized values to audio device.
• Rack Pro
  • Fix blank plugin window on certain Linux Nvidia graphics drivers.
• API
  • Don't include SIMDE headers on x64, fixing symbol conflicts when plugins include x64 intrinsic headers.
  • Don't export symbols from libarchive, zstd, rtaudio, and rtmidi to avoid conflicts with hosts that use these libraries. Rack plugins can no longer link to these libraries.
  • Rename plugin binary to plugin-arm64.dylib on Mac ARM64 so multiple plugin architectures can coexist in the same Rack user folder.

2.2.1 (2022-12-07)

• Add CROSS_COMPILE environment variable to specify target triplet for building plugins for non-native architectures.
• Accept aarch64 in target triplet as alias for ARM64.
• Rack Pro
  • Re-enable rtaudio and rtmidi in plugin adapters, so hardware audio/MIDI devices can be used directly by Rack.
  • Fix VST3 not receiving MIDI CC input from DAWs.
  • Fix VST3 not sending MIDI output to some DAWs.
  • Fix VST3 in Bitwig resetting parameters when adding/removing modules.
  • Fix VST3 adapter not loading on Bitwig Linux and possibly other hosts, by providing VST3 as a folder bundle instead of a single file.
  • Fix CLAP adapter not loading on Windows, by statically linking libgcc.

2.2.0 (2022-11-23)

• Add MIDI Loopback driver, allowing modules with MIDI ports to send MIDI messages to other modules.
• Improve fuzzy search in module browser.
• Allow building on ARM64 CPUs.
• Rename plugin packages to SLUG-VERSION-OS-CPU.vcvplugin.
• Rack Pro
  • Add VST3, Audio Unit, and CLAP plugin adapters.
  • Add framerate setting to plugins.
• API
  • Add system::sleep().
  • Make random::get(), uniform(), etc use global random state instead of thread-local.

2.1.2 (2022-07-04)

• Add old module moving behavior (nearest and force-moving), available by disabling "View > Auto-squeeze algorithm".
• Reorganized View menu.
• Add version comparator so Rack only updates plugins or itself if the remote version is "greater" than the local version, as defined by the string::Version documentation.
• Add file association to Mac, so double-clicking a .vcv patch file in Finder opens Rack and loads the patch.
• Fix expanders not updating (connecting or disconnecting to adjacent modules) when cloning or removing modules.
• Fix VCV Audio 2 VU meter light thresholds not matching label.

2.1.1 (2022-05-21)

• Allow changing cable colors with port menu.
• Fix placement bugs and improve behavior when moving or duplicating modules.
• Fix probabilistic crash when undoing a module paste action.
• Rack Pro
  • Fix VST2 window size not being remembered on Mac.
• API
  • Make SvgButton dispatch ActionEvent only on left mouse down, instead of left/right mouse down and drag drop.

2.1.0 (2022-02-26)

• Change behavior of force-moving modules so that other modules return to original position while dragging.
• Update to RtMidi 5.0.0.
• Update to RtAudio 5.2.0.
• Update GLFW.
• Fix plug graphic sometimes being incorrectly rotated.
• Core
  • Add "Pitch bend range" setting to MIDI to CV module.
  • Fix MIDI to CV incorrectly setting pitch wheel and mod wheel outputs in MPE mode.
• Rack Pro
  • Fix crash if generating hundreds of MIDI output messages per process block in VST2.

2.0.6 (2022-01-15)

• Add "Save a copy" to File menu.
• Remember CPU meter state across launches.
• Use audio device's suggested sample rate as initial sample rate.
• Add more logging of initialization/destruction of subsystems and module instantiation.
• Make MIDI input queue thread-safe, fixing probabilistic crash when processing MIDI input.
• Rack Pro
  • Generate MIDI Start message in DAWs like Cubase that pre-roll transport.
  • Generate MIDI Song Position Pointer messages when DAW is playing.
  • Fix VST2 input/output channel labels being truncated in Ableton Live.
  • Improve VST2 audio performance by avoiding unnecessary copying of buffers.

2.0.5 (2022-01-01)

• Swap order of parameter name and module name in MIDI-Map.
• Parse all note names from c0 to b9 and accidentals like c# and eb in parameter entry field.
• Tweak framebuffer render-skipping algorithm to always render at least 1 framebuffer after the frame deadline, to prevent framebuffers from never being rendered.
• Set audio device default sample rate to 44100, and block size to 256 except DirectSound to 1024.
• Fix file dialog truncating Unicode filenames on Mac.

2.0.4 (2021-12-18)

• Fix hang when initializing Audio module.
• Fix hidden window after closing while minimized and reopening.
• Move Import Selection menu item to File menu bar.
• Switch from GTK3 to zenity for opening dialogs on Linux.
• Implement prompt dialog on Windows.
• Make Windows installer add Rack to list of CFA allowed apps, allowing Rack to write to "My Documents" folder if Controlled Folder Access is enabled.
• Rack Pro
  • Improve stability of DAW MIDI clock.
  • Fix graphics glitch when duplicating module with Ctrl+D in Ableton Live.
  • Re-enable patch load error dialog.
• SDK
  • Compile with -fno-omit-frame-pointer.

2.0.3b (2021-12-09)

• Rack Pro
  • Use separate template patch when running as a plugin.

2.0.3 (2021-12-09)

• Fix MIDI-Map not accepting MIDI CC.
• Fix order of Audio-16 outputs 13/14 and 15/16.
• Clear patch before removing autosave dir when loading patch. This fixes inability to load patches on Windows when modules hold file handles to patch storage.
• Fix crash when patch attempts to add a cable that connects to a valid Port but an inexistent PortWidget (e.g. if a module defines a Port but omits the PortWidget).
• Upgrade from ustar to pax tar patch format. Don't store actual uid/gid, just set to 0.
• Rack Pro
  • Add external audio/MIDI drivers in plugin, except ASIO on Windows.
  • Show machine ID in splash window for offline activation.
  • Prevent "Reserved" plugin parameter from being changed when moving module parameters.

2.0.2 (2021-12-06)

• Turn off lights if module is bypassed.
• Fix Font and Image not loading UTF-8 filenames on Windows.
• Fix plugins not loading if their fallback alias exists.
• Fix crash when sometimes unsetting audio interface on Mac.
• Rack Pro
  • Save/restore plugin window size in patch.
  • Fix crash on scan in Renoise.

2.0.1 (2021-12-02)

• Fix network connection timeout.
• Flush log file when logging to avoid truncated logs.

2.0.0 (2021-11-30)

• Redesign Module Browser with compact layout, adjustable zoom levels, sorting options, intelligent searching, and multiple tag selection.
• Redesign component graphics and Core panels by Pyer.
• Add port tooltips with name, voltage, and list of connected ports.
• Add port context menu with ability to create cables with a particular color, drag any cable from the stack, or delete the top cable.
• Evaluate mathematical expressions (such as 1+2*3) in parameter context menu fields.
• Add multiple module selection by highlighting a rectangle or Shift-clicking on a module panel.
• Add importing/exporting module selections to new .vcvs file format.
• Add module whitelist to Module Browser which synchronizes individual modules chosen in the VCV Library.
• Add favorite modules filter to Module Browser.
• Restructure engine to no longer use an "engine thread".
  • Improve engine performance and latency by no longer requiring thread synchronization between the engine thread and audio thread. The engine now runs directly on the audio thread.
  • Add support for multiple simultaneous audio devices.
  • Add "Master module" context menu item to VCV Audio modules to select which audio device clocks the engine.
  • Allow other modules to be the primary module, such as VCV Recorder for rendering audio faster than real-time.
  • Remove "Real-time priority" menu item, since the thread priority is now managed elsewhere (RtAudio, etc).
  • Remove engine pausing as it no longer makes sense with the new engine architecture.
• Replace module disabling with bypassing, which directly routes certain inputs to outputs if specified by the plugin.
• Duplicate cables patched to inputs when a module is duplicated.
• Add module tags to module context menu.
• Add module manual URL (if plugin developer supplies it) to module context menu item.
• Add quick access to user module patches from <Rack user dir>/presets/<plugin slug>/<module slug> to module context menu. Supports subdirectories.
• Add infinity and NaN protection to cables, so they won't propagate non-finite values from badly behaving modules.
• Add basic headless support with the -h flag.
• Add multiple parameter dragging modes: scaled linear, absolute rotary, and relative rotary.
• Add "knobLinearSensitivity" property to settings.
• Add timestamps to MIDI messages.
• Allow sending and receiving SysEx messages through MIDI drivers.
• Allow scrolling with Alt+click and drag.
• Add "File > Open recent" menu item for opening recent patches.
• Add "Preset > Save template" to module context menu which saves the default module preset to load when a new instance is added to the rack.
• Break Rack executable into libRack shared library and lightweight standalone Rack executable.
• Add support for 1/2x and 1/4x low-fidelity sample rates to engine and "Engine > Sample rates" menu.
• Add Escape key command for existing fullscreen, in case F11 doesn't work.
• Copy cable color when cloning cables with Ctrl+click.
• Fix key commands on AZERTY, Dvorak, and all other keyboard layouts.
• Add Mouse device to Computer keyboard/mouse MIDI driver.
• Make scrollbar mouse interaction similar to modern OS behavior.
• Re-render framebuffers when subpixel offset changes, fixing bug that makes ports and knobs appear slightly offset at certain zoom levels.
• Use new .vcv patch format, an archive (POSIX tar compressed with Zstandard) of a patch.json file, module patch assets, and potentially other future files.
• Use randomly-generated 53-bit IDs to identify modules and cables in the patch.
• Use a fuzzy search algorithm for searching modules in the Module Browser.
• Add tips window which appears when Rack launches or when choosing "Help > Tips".
• Check for Library updates every few seconds to avoid needing to restart Rack to check for updates.
• When clicking on a module in the Module Browser and immediately releasing, place the module in the last cursor position in the rack, rather than the current cursor position.
• When clicking and dragging a module from the Module Browser, fix the mouse handle offset to the center of the module.
• Allow darkening rack brightness.
• Draw spotlight near cursor when rack brightness is lowered.
• Improve light rendering with a more physical blending algorithm.
• Add engine CPU meter and framerate meter to menu bar.
• Allow zooming rack with extra mouse buttons 4 and 5.
• Add "pixelRatio" to settings for forcing the UI pixel scale.
• If Ctrl+clicking on any menu item, the menu stays open (except for some menu items like "Delete Module").
• Add Ctrl+F1 key command when cursor is hovering a module to open its user manual.
• Redesign CPU meter with percentage history graph.
• Add PulseAudio driver on Linux.
• Distribute .pkg installer on Mac.

• Check for VCV Library updates when Library menu is opened, rather than at time intervals.

• Core

  • Add Audio-2 module with stereo input/output, a level knob, and VU meters.
  • Add DC blocker setting to Audio modules. On Audio-2, enable it by default.
  • Add MPE mode to MIDI-CC and MIDI-Gate.
  • Add mode to MIDI-CC to process 14-bit MIDI CC via MSB/LSB.
  • Use MIDI timestamps in MIDI-CV, MIDI-CC, MIDI-Gate, and MIDI-Map to improve overall timing and drastically reduce clock jitter.
  • Add red clip lights to VCV Audio-8/16 when signal reaches beyond ±10V.
  • Reset notes in MIDI-CV and MIDI-Gate if an "all notes off" MIDI message is received.
  • Allow disabling smoothing for MIDI-CV (pitch and mod wheel), MIDI-CC, and MIDI-Map.
  • Add several module presets for many Core modules.

• API

  • Add setters/getters for nearly every instance variable in Rack's API. Use these for higher likelihood of stability.
  • Compile Rack and plugins with -march=nehalem, enabling (and requiring) up to SSE4.2 and POPCNT instruction sets.
  • Add Module::configInput() and Module::configOutput() for adding names to ports.
  • Replace ParamWidget::paramQuantity with ParamWidget::getParamQuantity().
  • Add .modules[].manualUrl to plugin manifest schema.
  • Add appendAudioMenu() and appendMidiMenu() so plugin developers can develop custom audio/MIDI interfaces without adding an AudioWidget/MidiWidget to their panel.
  • Make Module::toJson() and fromJson() virtual.
  • Add Module::paramsToJson() and paramsFromJson() virtual methods.
  • Add SwitchQuantity and a helper method Module::configSwitch() for displaying named values in the parameter context menu. Also add Module::configButton() recommended for momentary switches with no value labels.
  • Overhaul Engine threading model to allow as many Engine methods to be called simultaneously as possible, while ensuring that Module events are mutually exclusive to module processing.
  • Add Engine::getNumModules() and Engine::getModuleIds().
  • Add event::KeyBase::keyName. Plugins should use this instead of key for alphanumeric keys in order to support all keyboard layouts.
  • Improve thread safety of dsp::RingBuffer.
  • Add several convenient filesystem routines to system::.
  • Add system::getTime() and getUnixTime().
  • Add system::readFile() and writeFile().
  • Move all string:: functions dealing with filesystem paths to system::.
  • Change type of Module::id and Cable::id from int to int64_t.
  • Move event classes to inside widget::Widget class.
  • Deprecate Window::loadSvg(). Un-deprecate Svg::load().
  • Font and Image can no longer be stored across UI frames. Load them with APP->window->loadFont() and loadImage() each draw() method.
  • Add Widget::hasChild(), addChildBottom(), addChildBelow(), addChildAbove(), and drawChild().
  • Add Module::createPatchStorageDirectory() and getPatchStorageDirectory().
  • Add createMenuLabel(), createMenuItem(), createCheckMenuItem(), createBoolMenuItem(), createBoolPtrMenuItem(), createSubmenuItem(), createIndexSubmenuItem(), and createIndexPtrSubmenuItem() to helpers.
  • Add Module::onReset() and onRandomize(). Overrides default param resetting and randomization behavior if overridden, unless super methods are called.
  • Add Module::SaveEvent.
  • Add operator overloads for Vec.
  • Add string::join(), split(), formatTime(), and formatTimeISO().
  • Add random::Xoroshiro128Plus which can be used like C++ <random> classes.
  • Add Port::getVoltageRMS().
  • Add Widget::drawLayer() for handling multiple draw passes.
  • Add on/off threshold values to dsp::SchmittTrigger.
  • Add dsp::convert() template functions for converting audio between normalized floats and integers.
  • Add bool app::SvgSwitch::latch setting for latching button switches.
  • Dispatch Module::SampleRateChange event when Module is added to engine.

1.1.6 (2019-11-04)

• Add ability for plugins to use LuaJIT on Mac.
• Fix normal random number generator possibly returning -infinity.
• Core
  • MIDI-Map: Don't move param until the first MIDI CC command is sent.
• API
  • Remove support for namespaced rack::APP, rack::DEBUG, etc macros. Use namespace-less APP, DEBUG, etc instead.
  • Add dsp::IIRFilter.

1.1.5 (2019-09-29)

• Swap order of tags and brands in Module Browser.
• Add View > Frame rate menu bar item.
• Hide menu and scrollbars when fullscreen.
• Add key command (F3) for engine CPU meter.
• Add numpad key commands.
• Automatically unzip update on Mac.
• Stop worker threads when engine is paused to save CPU.
• Core
  • Disable smoothing for MIDI CC buttons in MIDI-Map.
  • Fix sustain pedal release bug when using polyphonic mode in MIDI-CV.
• API
  • Add libsamplerate library.

1.1.4 (2019-08-22)

• Fix parameter smoothing of MIDI-Map.
• Sort modules within plugin in the Module Browser according to plugin rather than alphabetically.
• Fix bug where knobs sometimes jump while dragging.
• Reimplement CPU meter to measure thread runtime, not real time.
• Fix crashes when deleting/duplicating modules while dragging modules/cables in certain cases.
• API
  • Add dsp::BiquadFilter.
  • Add dsp/approx.hpp with approximate math functions.
  • Add simd::tan(), atan(), and atan2().
  • Add string::toBase64() and fromBase64().

1.1.3 (2019-07-23)

• Include root certificate bundle for libcurl on all OS's.
• Revert to OpenSSL from Schannel on Windows.
• Bundle unsigned Fundamental package on Mac.

1.1.2 (2019-07-20)

• Add app notarization on Mac, which removes the "Apple cannot check for malicious software" message on launch.
• Write stack trace to log.txt and display dialog box when Rack crashes.
• Re-enable JACK MIDI driver on Linux.
• Fix scroll speed for mice and trackpads on Mac.
• Fix undo history bug when dragging patch file to the Rack window.
• Fix crash when pasting presets to an empty rack space with Ctrl+V.
• Fix module expanders being assigned incorrectly when loading presets.
• Add check for duplicate port IDs for modules.

1.1.1 (2019-07-01)

• Add auto-updating on Windows when Help > Update VCV Rack is clicked.
• Fix extension filters in open/save dialog box on Windows.
• Fix expanders not attaching when force-dragging modules.

1.1.0 (2019-06-27)

• Request microphone access on Mac to prevent Mac 10.14+ from blocking audio input.
• Clear filters in Module Browser when backspace is pressed while the search field is empty.
• Add Ctrl+0 key command to set zoom to 100%.
• Emulate middle-click with Ctrl+shift-click on Mac.
• Fix MIDI receiving in Bridge MIDI driver.
• Fix opening/saving UTF-8 filenames on Windows.
• Fix bug where cable ID's were not being set in .vcv patches.
• Plugin API
  • Add string::absolutePath().
  • Use namespace for Core plugin to avoid name clashes.

1.0.0 (2019-06-19)

• Add polyphonic cables.
• Add multithreading to engine.
• Add undo/redo history.
• Add module expander support.
• Add parameter labels, units, and descriptions.
• Add parameter tooltips for quickly viewing parameter values.
• Add parameter context menu for entering numerical values, unmapping, etc.
• Change parameter initialization to double-click.
• Add ability to Ctrl+click on an input port to clone the existing cable.
• Add module "force" dragging when holding Ctrl.
• Add ability to disable modules with a context menu item and key command Ctrl+E.
• Add sample rates up to 768,000 Hz (16 x 48,000 Hz).
• Overhaul Module Browser with visual previews of modules.
• Add plugin info sub-menu to module context menu with links to manual, website, source code, etc.
• Add factory presets to module context menu if plugin supplies a folder of presets.
• Add default template patch.
• Add menu item to save the current patch as the template.
• Add "frameRateLimit" and "frameRateSync" for setting maximum screen refresh rate and to toggle vertical sync.
• Add "autosavePeriod" for setting the frequency of autosaves in seconds.
• Add textual menu bar, rearranged menu items, removed icons.
• Make CPU timer display microseconds and percentage instead of millisamples.
• Add engine real-time priority setting.
• Make rack infinite in all four directions.
• Add bus board graphic to rack.
• Add key command Ctrl+- and Ctrl+=, or Ctrl+scroll, for zooming the rack.
• Fix draw order of cable plugs and wires.
• Make Gamepad MIDI driver generate MIDI CC instead of MIDI notes for buttons.
• Add Numpad keyboard MIDI device.
• Fix Unicode user directories on Windows.
• Add ability to change cable colors in settings.json.
• Add -p X flag for dumping a screenshot of each available module.
• Allow user to see changelogs of plugins before updating their plugin library.
• Allow user to update individual plugins.
• Core
  • Add Audio-16 with 16/16 inputs/outputs.
  • Add CV-MIDI, CV-CC, and CV-Gate for sending MIDI to external devices.
  • Add MIDI-Map for mapping MIDI CC parameters directly to Rack parameters.
  • Add polyphony to MIDI-CV.
  • Add MPE mode to MIDI-CV.
  • Add "Panic" button to all MIDI modules to reset performance state.
• Plugin API
  • Add helper.py for creating and manipulating plugins with the command-line.
  • Add simd.hpp for generically handling arithmetic and math functions for vectors of floats, accelerated with SSE.
  • Add dsp::VuMeter2.
  • Add dsp::Timer and dsp::Counter.
  • Overhaul event system with many new events.
  • etc. See more at https://vcvrack.com/manual/Migrate1.html.
• Licenses
  • Relicense Rack to GPLv3 with the VCV Rack Non-Commercial Plugin License Exception and a commercial licensing option.
  • Collect all license statements into new LICENSE.md file.
  • License Core panel graphics under CC BY-NC-ND 4.0.

0.6.2 (2018-07-13)

• Add module presets.
• Add command line arguments for setting Rack directories.
• Improve UI/engine communication stability.
• VCV Bridge 0.6.2
  • Add VST FX plugin.

0.6.1 (2018-06-17)

• Add gamepad MIDI driver.
• Add computer keyboard MIDI driver.
• Add JACK support on Linux.
• Add velocity mode to MIDI-Trig.
• Add MIDI multiplexing so multiple MIDI modules can use the same MIDI device on Windows.
• Make Module Browser layout more compact.
• Add power meter.
• Add icons to toolbar.
• VCV Bridge 0.6.1
  • Replace VST effect plugin with VST instrument plugin with audio inputs.
  • Add MIDI support.
  • Add DAW transport and clock.

0.6.0 (2018-03-29)

• Release VCV Bridge for interfacing Rack with your DAW.
  • VST/AU effect plugins (Mac and 32/64-bit Windows) for using Rack as a send/return on a DAW track.
  • Enables future VSTi/AU instrument plugins with MIDI and DAW clock transport to be added in a later Rack 0.6.* update.
• Updated Plugin Manager to handle open-source plugins.
  • Potentially all plugins can be added with help from the VCV Community.
• New Module Browser for adding modules to the rack.
  • Launch by right-clicking on the rack or pressing .
  • Add "favorite" modules by clicking on the star button.
  • Navigate modules with arrow keys or mouse.
• Redesign Core modules.
  • Access to audio channels beyond the first 8 inputs/outputs.
  • Improve AUDIO stability.
  • Add retrigger output to MIDI-1.
  • Merged MIDI clock module with MIDI-1.
  • Fix MIDI-4 sustain pedal in polyphonic modes.
• Improve sample rate conversion performance, is disabled entirely when not needed.
• Patch cable colors are saved to patch files.
• Add highlighting for active patch cables when hovering mouse over port.
• Add shadows to knobs and ports.
• Add File > "Disconnect cables".
• Release Rack SDK for compiling plugins without compiling Rack.

0.5.1 (2017-12-19)

• Add Plugin Manager support.
• Fix metadata panel in the Add Module window.

0.5.0 (2017-11-21)

• Add zoom scaling from 25% to 200%.
• Automatically scroll when dragging cables to the edge of the screen.
• Add Quad MIDI-to-CV Interface, CC-to-CV, Clock-to-CV, and Trigger-to-CV MIDI interfaces.
• Improve support for ASIO, WASAPI, DirectSound, Core Audio, and ALSA audio drivers.
• New module browser with search and tags.
• Enhanced LED emulation in graphics engine.
• File > New attempts to load "template.vcv" in the "Documents/Rack" folder if it exists.

0.4.0 (2017-10-13)

• Cables can now stack on output ports.
• Add sub-menus for each plugin, includes optional plugin metadata like URLs.
• Add MIDI CC-to-CV Interface, updated MIDI-to-CV Interface.
• Add new scrolling methods: middle-click-and-drag, shift-scroll, and arrow keys.
• Add engine pausing in sample rate menu.
• Add resizable blank to Core.
• Add LEDs on plugs.
• Support for AMD Phenom II processors.
• Use self-contained Mac app bundle, no need for a Rack folder.

0.3.2 (2017-09-25)

• Add key commands.
• Fix "invisible knobs/ports" rendering bug for ~2010 Macs.
• Add "allowCursorLock" to settings.json (set to "false" for touch screen support).
• Fix 100% CPU issue when no audio device is selected.
• Add vector scaling panels.

0.3.1 (2017-09-13)

• Fix Windows open dialog current working directory graphics problem.
• Ctrl+C/Ctrl+V to copy/paste from text and password fields.
• Automatically remember settings and login token between launches.
• Remove .zip after downloading and extracting plugin.
• Ctrl+click to right click on Mac.
• Fix menu "flicker" when menu cannot fit in window.
• tweaks to Fundamental and Audible Instruments plugins.

0.3.0 (2017-09-10)

• Knobcon public Beta release.