Which mina version to choose?

[David Rosenstrauch]

We're planning to use Mina as the core for a fairly mission-critical 
server application we're building, and I'm trying to decide which 
version of Mina we should base it on.

Since 1.1 is the stable version, my first instinct would be to choose 
that.  However, I see that the 2.0 version has some important 
improvements in it - with several of them re: important capabilities 
like buffer allocation, threading, and such.

In addition, it looks like the 2.0 version is very close to release 
candidate status, which makes me wonder if it'd be a bad idea to launch 
a new development effort based on 1.x.

So thought I'd ask some of the folks here who have more expertise what 
they'd recommend.  Is there any current estimate when the 2.0 version is 
expected to be released?  How stable/performant is the 2.0 version right 
now?  Would you recommend basing a new development on it?  And if not, 
how hard is it to upgrade one's code later to use it?

Thanks,

DR