Hi,
There’s no plans for an upgrade for Biscuit at the moment.
The last one (Der OTO) was a quite huge one!
Some bugs fixes and new features are planned later this year, but it will need two separate firmwares: one for Biscuit and one for Der OTO.
The reason is that there’s no more room for bug fixes or new features in the same firmware (as it’s the case now).
.
