3. Version Numbering Scheme for XFree86 4.0.x.

The version numbering format for XFree86 4.0.x releases is M.m.nx, where M is the major version number (4), m is the minor version number (0), n is the sub-minor version number, and x is a letter. Full release versions up to and including 4.0.2 were 4.0, 4.0.1, and 4.0.2. Between-release snapshots are indicated by including x, a lower case letter. For example, the first post-4.0.1 snapshot was 4.0.1a. Release candidates have been indicated by setting x to a one or two letter combination with the first letter being "Z". For example, 4.0.1Z was the first 4.0.2 release candidate.

The next 4.0.x release will be an update release, not a full release. These update releases will be indicated by incrementing the sub-minor version number. So, the first post-4.0.2 update release will be 4.0.3. Between-release snapshots will continue to be indicated with a lower case letter, so the first pre-4.0.3 snapshot will be 4.0.2a.

The following example illustrates the release sequence from 4.0 through to the post-4.0.2 update releases.

4.0

The 4.0 release.

4.0a

The first post-4.0 development snapshot.

4.0f

The sixth post-4.0 development snapshot.

4.0Z

The 4.0.1 release candidate.

4.0.1

The 4.0.1 release.

4.0.1a

The first post-4.0.1 development snapshot.

4.0.1f

The sixth post-4.0.1 development snapshot.

4.0Z

The first 4.0.2 release candidate.

4.0Zb

The third 4.0.2 release candidate.

4.0.2

The 4.0.2 release.

4.0.2a

The first pre-4.0.3 snapshot/release candidate.

4.0.2c

The third pre-4.0.3 snapshot/release candidate.

4.0.3

The 4.0.3 update release.

4.0.3a

The first pre-4.0.4 snapshot/release candidate.

4.0.4

The 4.0.4 update release.