It's in Debian (possibly upstream only), but you can download the latest version from their website and install it manually.
The MX Linux repositories
: Backports galore! If we don't have something, just ask and we'll try--we like challenges. New packages: Inkscape 0.92.1, Pale Moon 27.1.0, Liquorix kernel 4.9-11, SMPlayer 17.2.0, Kodi 17.0, Shotwell 24.5, Mesa 13.0.4