NEW FEATURES
Math page
Pitch bend is now a modulation source
VintageChorus now has a wet level control
New trigger source for per part note on and off
Master tune setting
Mono output choices for parts
IMPROVEMENTS
5 new presets
Pots are now a lot more responsive when turning them slowly
Replace Amp:Volume with VCA Env Amount, move Volume to Parts, and rename Amp:Gain to Drone
Don’t stop transport when loading preset
Tap tempo is now more stable
Rename Amount -> Via Amt in mod matrix
Rename VCF:Key / Key Follow to Key Amt / Key Follow Amount, for clarity
FIXES
Reset modulation amount when quick assigner uses an empty row
Rare crash when exiting Preset page without pressing Ok
Rare crash when paraphony is reduced at the same instant as notes are played
An alert the day a new Redshift 6 firmware ships, by email, Telegram or push
Your whole rig in one place, with the version each device is on
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We check Supercritical Synthesizers's official download page for the Supercritical Synthesizers Redshift 6 every day. One message per release. No spam, no newsletter.
How to update the Supercritical Synthesizers Redshift 6
Download the updater for your OS (Linux, Mac, or Windows) from supercriticalsynthesizers.com/redshift6/. Connect the Redshift 6 via USB. Run the updater and follow the on-screen instructions. Do not power off during the update. A preset storage update message on first boot after flashing is normal.
Supercritical Synthesizers Redshift 6 firmware update history
10 releases since Mar 2025, roughly one every 2 months.
Changelogs summarised from the manufacturer's release notes.
Version 1.7 — 24 Jun 2026
Release notes for this version are listed above.
Release notesopens in a new tab — supercriticalsynthesizers.com
Version 1.6.1 — 14 Apr 2026
Note: you might see a message “PRESET STORAGE UPDATED, PLEASE REBOOT” on startup: this is normal and should only appear once.
FIXES
Remove typo in preset SEQ-DIVIDING-SPACES and remove extra mod matrix row
Playing very many notes via USB MIDI could crash the synth (Regression in 1.6)
Recreate preset registry if it has been corrupted
No presets should be lost when this happens
Fix crash when PB Down on Part 6 is not default (regression in 1.6)
Version 1.6 — 30 Mar 2026
NEW FEATURES
New Arp/Seq engine: Polyphonic Sequencer
32-step sequencer with 6-voice polyphony
Macro page
8 global macros that can be used as modulation sources on any part
Assign in the mod matrix or by holding the Macro button
Hold Macro and press the arrow buttons to choose the macro to assign
Perform and Clock pages now show transport state including song position
Clock page now has transport controls
Shortcuts: Hold Clock and press Ok for transport play/pause or Esc for transport stop
IMPROVEMENTS
Eight new presets
Hold Macro, Vel or Voice button and press arrows to choose between modulation sources
Drive is now a modulation destination
Part + Arp/Seq shortcut now requires a double tap
This was making part multi-edits awkward if you wanted to change something on the Arp/Seq page
Envelope CCs now control the full range
Engine can now be selected by pressing the Select knob
FIXES
Crash when receiving too many notes at once
Rename X-Delay Sync values for consistency with LFO
Disable unused keyboard buttons
Amp & Math no longer do anything while internal keyboard is on
Illuminate Clock when Shift is held
Mute didn’t work for voices with non-zero VCA gain
Note that parts are now muted immediately instead of letting the release stage play
Small visual fixes & tweaks
Edit CCs now work on the MPE master channel
MIDI clock via DIN was dropping out every 7.8 seconds (regression in 1.5)
Shift no longer continues blinking if preset is loaded while shift lock is on
Enabling the internal keyboard now disables mod lock
Portamento CC was not working
Unify Separation parameter naming (it’s now called Separ everywhere)
Version 1.5 — 4 Dec 2025
NEW FEATURES
Added engine selection interface
Press Engine on any page with engines (currently FX & VCF)
Or hold the Engine button and press the button for a page with engines
New VCF engine: Mirror Twins
New FX engine: Chorus+
New FX engine: Stage Reverb
New FX engine: Vintage Chorus
New FX engine: X-Delay
Add Glide Mode to Perform page
IMPROVEMENTS
Added 14 new presets
Reorder existing presets and added effects to most of them
Double-tapping now toggles parts / FX / Arp on and off
Hold one or more part buttons and press Arp/Seq to toggle it on/off for those parts
Unify look of top/bottom panes and add visual dividers between elements
Double-tap detection is now slightly less sensitive
More stable BPM display
Rename Choose to Select on all pages
Only illuminate arrow buttons when they actually do something
Mod matrix destinations now default to Off
Make it easier to tell if ARP/SEQ & FX are enabled or not
If MIDI clock is received over both USB and DIN, ignore the DIN clock
Show env amount on VCF Env page
Step Pitch & OSC 2 Tune by fifths & octaves when holding down the pot
Adjust BPM faster when holding down the pot
UI now runs faster overall
FIXES
Potential crash when arpeggiator was stealing notes
Illuminate MIDI button when Shift is held
Double-tapping a mod source now changes the mod lock instead of adding a via lock
Reload did not work when starting from init preset
Fix a timing issue that caused exaggerated pops on large pitch changes
Don’t reset MPE pitch bend on note off
Shift button no longer blinks while held
Unused NRPN’s would get routed to the closest used NRPN
Ignore global parameter NRPNs except on perform channel, instead of crashing
Don’t crash when selecting Delete when there are no user presets
Pots now start working quicker after bootup
Get rid of spurious weird line on Preset page
Voice mode couldn’t be set to Reserved in some instances
Fix several edge cases with preset reloading
Crash when scrolling to the end of the preset list
[...]
Version 1.4 — 1 Oct 2025
NEW FEATURES
MPE
Settings page now has options for MPE
Assign MPE Timbre (CC74) modulation by holding the MIDI button
BREAKING: CC for Cutoff is now 79 (to avoid clash with MPE Timbre)
New oscillator waveform variants that reset on incoming note
Arpeggiator
Envelopes now have a Reset parameter
Defaults to Off for analog-style envelopes as before
LFOs now have a Sample & Hold waveform
Multi-part editing
Quick edit
Hold down one or more part buttons while turning a knob to adjust the parameter for all held parts
All parameters will be set to the same value, i.e. the editing is absolute, not relative
Latched edit
Hold down a part button while selecting/deselecting others by tapping them
Adjust parameters to edit all held & selected parts
Let go of all held part buttons to exit multi-edit mode
Tip: this is a great way to assign multiple parts to the same group
Load individual parts from presets
There’s a new control “Parts” on the Preset page
By default it’s set to “All” which works as before
Other options will load individual parts from the preset into the selected part
For example, “3 -> 4” means “load part 3 from the preset into part 4”
You change the first number (“source part”) by turning the top left knob
You change the second number (“target part”) by choosing a part with the 1-6 buttons
The result of this will be previewed as usual; press Ok to confirm
If you want to load multiple individual parts, you need to press Ok after each one and re-enter the Preset page
Enter single part load mode by holding a part button and tapping Presets
Parts option defaults to loading part 1 instead of all parts
Selected part doesn’t reset to 1 while scrolling presets
IMPROVEMENTS
New factory presets showcasing MPE, the arpeggiator and more
Stepped pot response is slightly less overenthusiastic now
Add grace period after releasing a parameter knob or Shift to prevent accidental edits
Preset scrolling is a lot more responsive now
[...]
Version 1.3.1 — 26 Jun 2025
FIXED
Fix buttons sometimes getting stuck in very specific circumstances
Version 1.3 — 16 Jun 2025
ADDED
Multitimbrality
Multitimbral factory presets
Preset preview: presets are automatically loaded while browsing
Amp & VCF envelope ADSR controls now have CC numbers (see manual)
Key page now has controls for Low/High key limits
CHANGED
Polyphony & Unison on Parts page now limit each other
Parts page now shows how Paraphony is limited by Stack
Trigger parameter is now on the Perform page
Mod Matrix now scrolls to latest modulation assigned with quick assign controls
Note tails are now cut when changing presets
Change Character NRPN number because Reaper for example is sending 0, 0 to reset CC/NRPN (see manual)
Disable Shift Lock when loading preset
Parameter overlay logic tweaks
Improve stepped knob response
Visual tweaks
FIXED
Changing parameters with MIDI now makes preset show as modified
Fix perfectly overlapping notes not retriggering
Overlapping notes now work as expected
Fix crash when modulating Character in the negative direction (and potentially other weird behaviour in modulations)
NRPN compatibility fixes
Fix buffer overflow when sending a lot of CC messages to the synth
Clock setting was shown based on external clock on clock page, even when internal was selected
Modulations were being applied to the last parameter modulated when turning a knob with no assigned parameter (such as when turning the top row of knobs on envelope pages)
Version 1.2.2 — 2 Jun 2025
FIXED
Firmware update improvements
Version 1.2.1 — 8 Apr 2025
FIXED
Fix occasional crash when sending CC/NRPN messages to the synth
Firmware updater is now more robust especially on Mac
Version 1.2 — 31 Mar 2025
ADDED
Clock that can be synced via MIDI
LFO clock sync
Tap tempo
All parameters can now be controlled with NRPN and some with CC
Velocity to Amp quick modulation on AMP page
Mod lock
Double-tap a mod source to latch mod assignment mode
Hold a source and double-tap another one to latch mod + via assignment
Tap the blinking source or via button or Esc to unlatch
DCO keyfollow setting -400% to 400% on the KEY page
Keyboard octave switching: Up/Down on Key page, or Shift + Up/Down anywhere
Filter keyfollow snap to nominal 1:1, 2:1, 3:1 (these are not super accurate in self oscillation)
65 new presets by Gattobus, Starsky Carr and our team
CHANGED
New parameter adjustment logic
Default is as previously, except adjustment is more responsive (much smaller “deadzone” when starting to move a knob)
Holding shift now enables parameter fine tuning, allowing for much smaller adjustments (you can for example adjust tune by less than a cent)
Double-tap Shift to latch fine tune mode, tap Shift or Esc to unlatch
Parameter steps are now accessed by holding down a knob while turning
Perform page now shows clock status and incoming MIDI
Clarify a bunch of names around the UI
LFO Reset Phase now has steps at 25%, 50% and 75%
DCO Stack & Detune visualization now more accurately reflects what’s happening in the voice
Short grace period after adjusting modulation to prevent accidentally changing the parameter
Keyfollow now also follows pitch bend and portamento (might change behaviour of some presets)
Minor visual tweaks and fixes
FIXED
LFO now sends reset signal also when it is externally reset itself
Note that this may change presets where you have multiple LFO’s synced in sequence
Reload preset now works correctly
Multiple panel controls can now be adjusted simultaneously
Bottom of Settings page no longer disappers after a parameter overlay is shown
June Harp preset had Pitch -2 by accident
[...]
What is the latest firmware for the Supercritical Synthesizers Redshift 6?
The latest firmware for the Supercritical Synthesizers Redshift 6 is version 1.7, released on 24 Jun 2026. FW//RADAR last checked Supercritical Synthesizers's official page on 26 Oct 2026.
How do I update the Supercritical Synthesizers Redshift 6?
Download the updater for your OS (Linux, Mac, or Windows) from supercriticalsynthesizers.com/redshift6/. Connect the Redshift 6 via USB. Full instructions on Supercritical Synthesizers's official firmware page.
Where can I download Supercritical Synthesizers Redshift 6 firmware and drivers?
Directly from Supercritical Synthesizers's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →
Where can I find the Supercritical Synthesizers Redshift 6 manual?