Mark I/II:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_18p08.zip
XL:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_xl_18p08.zip
XL+:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_xlplus_18p08.zip
If using Axe-Edit, version 3.1.10 is required and may be downloaded here:
Fractal Audio Systems - Axe-Edit 3.0 Software Editor for the Fractal Audio Axe-Fx II Guitar Processor
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_18p08.zip
XL:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_xl_18p08.zip
XL+:
www.fractalaudio.com/downloads/firmware-presets/axe-fx-2/18.0/axefx2_xlplus_18p08.zip
If using Axe-Edit, version 3.1.10 is required and may be downloaded here:
Fractal Audio Systems - Axe-Edit 3.0 Software Editor for the Fractal Audio Axe-Fx II Guitar Processor