2.0.4 timeline / patch submission deadline?

I saw that there’s a 2.0.4 release candidate. There are some bugs that
particularly bother me in 2.0.3. Given that there seems to be roughly a
year between releases, I was thinking that if I want them fixed soon
then perhaps I’ll have to dig into the code and try to fix them myself.
However, projects often limit changes once they hit the RC stage. So, is
there some kind of deadline for 2.0.4 patch submissions?

– Adam