2 HOW TOR VERSION NUMBERS WORK
6 Before 0.1.0, versions were of the format:
7 MAJOR.MINOR.MICRO(status(PATCHLEVEL))?(-cvs)?
8 where MAJOR, MINOR, MICRO, and PATCHLEVEL are numbers, status is one
9 of "pre" (for an alpha release), "rc" (for a release candidate), or
10 "." for a release. As a special case, "a.b.c" was equivalent to
11 "a.b.c.0". We compare the elements in order (major, minor, micro,
12 status, patchlevel, cvs), with "cvs" preceding non-cvs.
14 We would start each development branch with a final version in mind:
15 say, "0.0.8". Our first pre-release would be "0.0.8pre1", followed by
16 (for example) "0.0.8pre2-cvs", "0.0.8pre2", "0.0.8pre3-cvs",
17 "0.0.8rc1", "0.0.8rc2-cvs", and "0.0.8rc2". Finally, we'd release
18 0.0.8. The stable CVS branch would then be versioned "0.0.8.1-cvs",
19 and any eventual bugfix release would be "0.0.8.1".
23 After 0.1.0, versions are of the format:
24 MAJOR.MINOR.MICRO(.PATCHLEVEL)(-status_tag)
25 The stuff in parentheses is optional. As before, MAJOR, MINOR, MICRO,
26 and PATCHLEVEL are numbers, with an absent number equivalent to 0.
27 All versions should be distinguishable purely by those four
28 numbers. The status tag is purely informational, and lets you know how
29 stable we think the release is: "alpha" is pretty unstable; "rc" is a
30 release candidate; and no tag at all means that we have a final
31 release. If the tag ends with "-cvs" or "-dev", you're looking at a
32 development snapshot that came after a given release. If we *do*
33 encounter two versions that differ only by status tag, we compare them
36 Now, we start each development branch with (say) 0.1.1.1-alpha. The
37 patchlevel increments consistently as the status tag changes, for
38 example, as in: 0.1.1.2-alpha, 0.1.1.3-alpha, 0.1.1.4-rc, 0.1.1.5-rc.
39 Eventually, we release 0.1.1.6. The next patch release is 0.1.1.7.
41 Between these releases, CVS is versioned with a -cvs tag: after
42 0.1.1.1-alpha comes 0.1.1.1-alpha-cvs, and so on. But starting with
43 0.1.2.1-alpha-dev, we switched to SVN and started using the "-dev"
44 suffix instead of the "-cvs" suffix.