alpha version
Internal beta. α is the first Greek letter indicates the earliest version, users generally do not download this version, this version contains many BUG , not all functions, mainly to developers and testers with the test and find BUG.
beta version
Public Beta. β is the second Greek letters, as the name implies, this version is released later than the alpha version of some, mainly to the "tribe" of loyal users and user testing, and there are many BUG version that any course , but relatively alpha version to stabilize some of the . This stage version of the software will continue to add new features. If you are enthusiasts, you can download this version.
rc version
Release Candidate (release candidate), but this version even further than the beta version, this version features not increase, and the final release version of the same function. This version is similar sort of like a preview version before the final release, this release will mark the final release is not far away. As an ordinary user, if you are eager to use this software, you can also download this version.
stable version
stable version. In the open-source software, has a stable version, this is the final release of open source software, users can rest assured bold use .
Release version
There are some software Release version of the official release , the official version is recommended for use, some with GA to represent. For example, spring
