METRON V1.77 CHANGELOG
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Upgrading to 1.70 and beyond will change the save session data structure. You cannot go back to pre 1.70 versions and use saved data.
Back up your SD Card save sessions before updating.
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Bug Fixes:
- Changing single track pointer length shows the correct steps in the display panel
Feature Additions:
- Accessibility feature for resetting Fill FX, Global Assigns and Voltera scales, mutes and octaves.
- Clock swing on Metron is now available when using an external clock source
- Voltera scales and octaves now boot to their defaults. Recall your previous scales and octaves from saved sessions.
Last checked 27 Oct 2026
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We check WMD's official download page for the WMD Metron every day. One message per release. No spam, no newsletter.
Back up the Metron SD card to your computer first. Download the firmware zip from the Metron product page, extract UPDATE.BIN and copy it to the root of the Metron SD card, replacing any older UPDATE.BIN. With Metron powered off, put the card back and connect any Voltera expanders. Power on: the screen shows BOOTLOADER while the update runs; wait until Metron reaches its normal screen before powering down, removing the card or playing. Voltera and Axxent expanders update at the same time and show progress on their LEDs. A valid UPDATE.bin on the card can also be installed with Force Update in Global Settings.
2 releases since Apr 2026, roughly one every 3 months.
Changelogs summarised from the manufacturer's release notes.
Version 1.77
Release notes for this version are listed above.
Version 1.76 — 18 Jun 2026
Bug Fixes:
- Fixes a Voltera session save bug that could cause loss of individual save session files
Feature Additions:
- UI tweak to count down global setting to limit the count down to the current step while leaving the counter to count up
- Spread the pot range when choosing a scale on Voltera to give equal range to each scale choice
Version 1.75 — 1 Apr 2026
We are addressing a few user reported bug in this release. Thank you to the folks who reached out with your bug reports! Also adding two small new features this time around.
Bug Fixes:
- Fixes loading bug where UI would freeze if trying to load a session while transitioning variations
- Fixes pattern stutter when tracking external clock
- Prevents reset out from triggering when sequencer paused in PRE and END clock modes
- RST mode will send reset signal on button press or external reset trigger
- Fixes shuffle sticking near end of pattern
Feature Additions:
- Adds new global option for Clock Out Always. Set if the clock is output when the sequencer is paused
- Adds new global option for Step Count Direction. Count up or down to last step in pattern.
WMD Metron firmware FAQ
What is the latest firmware for the WMD Metron?
The latest firmware for the WMD Metron is version 1.77. FW//RADAR last checked WMD's official page on 27 Oct 2026.
How do I update the WMD Metron?
Back up the Metron SD card to your computer first. Download the firmware zip from the Metron product page, extract UPDATE.BIN and copy it to the root of the Metron SD card, replacing any older UPDATE.BIN. Full instructions on WMD's official firmware page.
Where can I download WMD Metron firmware and drivers?
Directly from WMD's official firmware page — FW//RADAR links to the source and never hosts firmware files. Official firmware page →
