There seems to be a rash of Alpha and Beta test software available at the moment. I currently have, or have very recently had, the following on my laptops: In addition, there is a Beta release of ...

This paper studies the estimation of asset pricing model regressions with conditional alphas and betas, focusing on the joint effects of data snooping and spurious regression. We find that the ...

Google has issued an update to how developers use the Play Store to test apps. There aren't as many options, but the entire setup is simpler. You've got internal tests, closed alpha, and open beta.