beta's instead of daily builds?

I was reinstalling windows and of course also my favourite ShareAza.
The normal version is still 2.5.5.0 may 2011.
Because you always keep on improving Aza, I thought of installing a beta version.
Had fun in trying that previously.
But I can only find Alpha's, daily builds.
That is a little too risky for me, and I think full of debug code.
The number there is already 2.5.5.3, so I think there have been a number of beta's too?
Where can I find them?
Or do you advice to avoid them?
Thanks and keep on the good work !
SCS
The normal version is still 2.5.5.0 may 2011.
Because you always keep on improving Aza, I thought of installing a beta version.
Had fun in trying that previously.
But I can only find Alpha's, daily builds.
That is a little too risky for me, and I think full of debug code.
The number there is already 2.5.5.3, so I think there have been a number of beta's too?
Where can I find them?
Or do you advice to avoid them?
Thanks and keep on the good work !
SCS