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RootControl Changelog

Version history and release notes for RootControl.

v6.4.0 Latest Released July 9, 2026

A major update. If you're coming from an earlier version, here's everything that's been added and improved.

EQ & Band Shaping

  • Asymmetric band widths — set each band's low and high edges independently, so you can shape bells that are wide on one side and tight on the other.
  • Tighter, more surgical bands — bands can now go significantly narrower for precise notching.
  • Non-overlapping bands — dragging a band gently pushes its neighbor aside instead of colliding or stacking, so your bands stay clean and readable.
  • Cleaner octave moves — nudging a band by an octave shifts its whole region smoothly and moves neighboring bands out of the way.
  • Smoother mode switching — moving between Anti-Key and normal EQ resolves any band overlaps automatically.

Anti-Key

  • Modal modes + Custom — Anti-Key can now target any of the 7 diatonic modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) or your own fully custom interval set.
  • Sharper deep cuts — deeper Anti-Key cuts are automatically more surgical, so a strong cut carves out exactly what you want without pulling a wide band of surrounding tone with it.
  • Clean, predictable presets — Anti-Key presets now load in a known-clean state every time, instead of carrying over whatever you had dialed in on the band beforehand.
  • Reliable on/off state — the Anti-Key toggle now always reflects its true state.

Saturation

  • Rebuilt saturation engine — driving the saturation changes the harmonic character of your sound while keeping the level consistent, so you can judge the effect honestly by ear instead of being fooled by a volume jump.
  • More drive on tap — the saturation range has been extended for a more audible effect across the control.
  • A little reward at the top — a subtle lift eases in only at the very top of the knob, for extra push when you want it, while the usable range stays honest.
  • Finer control — the saturation knob spreads its most useful range across more of the travel, so dialing in is easier.
  • Per-band A/B bypass — instantly toggle each band's saturation on and off to compare.
  • Smart auto-engage — saturation switches on as you raise the amount and off at zero, with a manual override when you want it.
  • Refreshed factory presets — the saturation factory presets have been re-voiced to sound great with the new engine.

Metering & Display

  • Locked analyzer & panel — the spectrum display and the band controls stay perfectly in sync as you edit.
  • Smoother visuals — band regions, curves, and handles track your mouse fluidly for precise, fine adjustments.

Workflow

  • Shift+Click exclusive solo — Shift-click a band's solo to instantly hear just that band.
  • Correct multi-band solo — soloing multiple bands now combines them properly.
  • Clearer dynamics width control — one clearly-placed control governs the dynamics width for a band's dynamic EQ and sidechain.
  • Expanded Quick Guide — added tips for the dynamics features.

Fixes

  • macOS external sidechain now works correctly in both VST3 and AU, matching Windows.
  • macOS factory presets now install to and load from the correct location.
  • Anti-Key + root changes — changing the root with Anti-Key on now lands on the correct frequencies, and automating the Anti-Key toggle no longer disturbs your band positions.
  • Band drag floor — bands can no longer be accidentally dragged down on top of your lowest band.
  • Solo stability — fixed a crash that could occur when soloing across bands.
  • Windows — resolved an error some users encountered during installation.

A note for existing projects

Your saved presets and project settings load as expected. Two small things to be aware of:

  • If you previously automated the saturation control in a project, that automation may respond a little differently now, due to the control's improved response.
  • Presets that used saturation will reflect the new saturation engine, so they may sound subtly different from before — in line with the improvements above.