• Acid's filter goes much darker: the cutoff now reaches down to 60 Hz (a 303 stops at 314 Hz). The top half of the knob is the stock 303's, unchanged; the bottom half is the new dark range. The factory acid presets and the house demo sound as before (their cutoffs moved to the new knob). In your own projects, an acid track with its cutoff below the middle will now sound darker: turn it up a little to get the old sound back.
• The delay's ping width: on a delay, FX I's or FX II's SEL list has PING WIDTH, how far apart the echoes bounce, from hard left and right (127, as before) to the centre (0). Projects from earlier versions keep their full bounce. Projects saved by 0.12.1 don't open in 0.12 or earlier.
• The manual says what acid's shaper does: it shapes the square wave only (wave on square), most of it in the bottom third of the knob.
• Fixed: the install page stopped with "PORT_NAMES is not defined".