Hi,
I have started committing filters support to OpenBSD today in order to get them nice and ready for the next major release.
The only part missing at this point is DATA filtering which I'll probably finish by the end of November.
Filters are in development meaning that keywords will change, protocol will change, they are not intended to be used by lambda users yet, only by developers willing to change their code every few days.
I wrote about them in an overview here:
Feel free to ask questions :-)
