Sometimes do not understand, has not been released when the software how there are so many versions, today thoroughly want to know.
Well, someone wrote it early.
Please refer to here:
Http://baike.baidu.com/view/707808.htm#1_2
Beta version
This version of the
Alpha Edition indicates that the software is only a preliminary product, usually communicated only within the software developer, and a small portion is released to professional testers. Generally speaking, this version of the software bug more, ordinary users should not install.
Beta Version There has been a great improvement over the alpha version, eliminating serious errors, but there are still some flaws that need to be further eliminated by large-scale release testing. This version is usually released free of charge by the software company and can be downloaded from the relevant site. Through the testing of some professional enthusiasts, the results are fed back to the developers and the developers make targeted changes. This version is also not suitable for general user installation.
Gamma version of this version is quite mature, and the forthcoming release of the official version of the same, if the user can not wait, try to install.
RC Version (Release Candidate) Release Candidatem, meaning "Release Candidate", is not the final version, but the last version before the final version (Rtm=release to manufacture). In general, there are three traditional names for testing: alpha, beta, gamma, which identifies the stage and scope of the test. Alpha refers to the beta, or CB, that refers to the internal test version of the development team or the Limited User experience test version. Beta refers to public testing, which is a beta version that is exposed to all users. And then made some changes to become the official release of the candidate version is called Gamma, called RC (Release Candidate).
[It literacy] software test period version of Salutation