Ok, installed the 1.4.0.20, and it has huge problems!
I'm running BSP as slave over USB, with renoise as master, using it only for controlling my modular (over CV). Did a lot of tests this morning with this and 1.3.0.23, recording the triggers CVs and clock CVs in renoise and measured the timing. Took me about two hours, here are my findings:
in 1.4.0.20 the triggers are delayed about 22ms compared to the clock out (and everything in 1.3.0.23):
in 1.3.0.23 the triggers are about 1ms delayed (I can live with that) compared to the clock.
This means that in 1.4.0.20 I can't use both clock and triggers with my modular. Downgraded and everythings fine again.
Additional finding:
in 1.3.0.23 there's a hickup in the clock when going from pattern to the next in renoise if "send song position pointers" is on in renoise prefs
in 1.4.0.20 the BSP actually stops sending clocks when switching renoise patterns with "send song position pointers" is on
Can't believe I didn't notice this hickup in 1.3.0.23 (didn't do this level of testing before), with 1.4.0.20 it's obvious (clock stops), so in any case "song song position pointers" should be off...
EDIT: i didn't try the new "factory reset" feature and I'm not going to, although there's a slight possibility that it might remedy the issue. I'm out of time and out of patience...