What does it mean when a software script component is released as a beta?

have you ever seen some scripts that say BETA on them, well, beta simply means that is in test mode. this means that the beta program (for example) is in its testing stages. many programmers use beta to get bugs out, they let users use their software in beta stage to test for any bugs in the prgram. once you testing phase is complete, it goes into a release that will be sometime like example vesion 1.0