4.0.6 Release: August 2026
New Features:
• New polyphonic Arpeggiator modes
• Mutator patch randomizer
• Global->MIDI->Out:
- New setting whether arp/seq notes shall be sent out to external. Works also with Iridium Desktop & Core when triggered from external MIDI inputs.
Bug Fixes:
FS#2832 - Midi learn CC OK button touch range
FS#2837 - Layer Multi no notes played after load
FS#2839 - Mutator: At 0%, still mutates osc semitone and filter1 env amount
FS#2842 - Master Compressor Missing
FS#2843 - Display Brightness changes to 40% if screensaver>power off
- Arpeggiator: Fixing Chord Sort Order (won't work together with Poly Arp)
- MPE Zones Button Glitch
- MIDI CC Learn UI Glitch
- Update Panel fix
- Various USB & Flash fixes
Unzip the download and copy quantum.update.bin to the root folder of an SD card (FAT32, at least 10 MB free, ideally no other files) or a USB drive. Insert the SD card into the Quantum upside down, go to Global > System > Info and press Update; the Quantum updates itself and reboots. Do not switch it off or disconnect mains power during the update. Afterwards the pitch bend and mod wheels may need recalibrating. Install only Quantum OS files: Iridium files are not compatible.
3 releases since Oct 2025, roughly one every 5 months.
Changelogs summarised from the manufacturer's release notes.
Version 4.0.6 — 6 Aug 2026
Release notes for this version are listed above.
Release notesopens in a new tab — downloads.waldorfmusic.com
Version 3.3.2 — 7 Jul 2026
Version 3.3.0 — 1 Oct 2025
3.3.0 Release Candidate 1: October 2025
Bug Fixes:
FS#2638 - FX modulation is offset by one
FS#1866 - Matrix: FX1-FX5 destinations mixed up in 5 Serial
FS#2538 - Typos in Add Samples dialog
FS#2524 - Typo: Missing 't' in Resonator-Timbre-Select entry
FS#2622 - Menü FAVORITES wird in LOAD - Assign Favorites nicht korrekt angezeigt
- General stability fixes.
- Fixing pitch wheel having sometimes wrong pitch effect.
3.3.0 Beta 3 - September 2025
New Features:
- Number of favorite sets increased to 12
- Number of distinct bank and author names increased to 100
Bug Fixes:
- Fixing hanging midi out notes in layered mode
- Fixing midi out overloads
3.3.0 Beta 2:
New Features:
- Modulation Matrix
- New source "Release Velocity"
- Macros
- More screens to select from for "Show Screen"
- Global
- Improved Support Log esp. for freeze errors
Bug Fixes:
- Fixing PolyAT Calibration
- Removing "Rec Level" from Global->Audio for Iridium instruments as it only is functional for Quantums
- Fixing situations when no MIDI is received on macOS Sonoma with "local off" and MIDI 2.0 mode for some applications like Live.
- FS#2503 - Typo 'nuber' in save patch 'please select a slot' popup
3.3.0 Beta 1:
New Features:
- PitchBend
- "Per Note PitchBend" (e.g. from MPE or MIDI 2.0) is now independently handled from wheel ptch bend.
- It has its own range setting in Osc->Pitch&Tools (for all 3 osc same)
- It is a new source in the modulation matrix
- Samples
- The "Load" button in Global->Audio has been renamed to "Browse"
- In the file browser you can now copy whole directories between internal Flash and USB/SD storage.
- MIDI 2.0
- High-resolution Velocity, Poly Aftertouch, Controller, Wheels and Channel Pressure
- Supported e.g. by Logic and Cubase on macOS Sonoma or Sequoia.
- All internal processing of these now with 32 bit floating point precision
- Transformed and received to/from via USB Midi Host & Device (Controller & Computer ports)
[...]
Waldorf Quantum MK2 firmware FAQ
What is the latest firmware for the Waldorf Quantum MK2?
The latest firmware for the Waldorf Quantum MK2 is version 4.0.6, released on 6 Aug 2026. FW//RADAR last checked Waldorf's official page on 26 Oct 2026.
How do I update the Waldorf Quantum MK2?
Unzip the download and copy quantum.update.bin to the root folder of an SD card (FAT32, at least 10 MB free, ideally no other files) or a USB drive. Insert the SD card into the Quantum upside down, go to Global > System > Info and press Update; the Quantum updates itself and reboots. Full instructions on Waldorf's official firmware page.
Where can I download Waldorf Quantum MK2 firmware and drivers?
Directly from Waldorf's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →