Features for version 0.4

[Araq]

Borrow checking

Reason: It makes the compiler pickier and we want to avoid code breakage later. It is easier to make rules more lenient according to user feedback than to make them stricter. We want to teach people early on about the rules, limitations and workarounds.

Implement the nil ptr/refs as we want them to work

Reason: Same as "borrow checking".

.passive procs working including delay.

Reason: We cannot really enable networking libraries without it.

[blackmius]

network libraries will be based on passive procs?

[Araq]

Sure.