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47 lines
2.0 KiB
Plaintext
47 lines
2.0 KiB
Plaintext
$Id$
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HOW TOR VERSION NUMBERS WORK
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============================
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The Old Way
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-----------
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Before 0.1.0, versions were of the format:
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MAJOR.MINOR.MICRO(status(PATCHLEVEL))?(-cvs)?
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where MAJOR, MINOR, MICRO, and PATCHLEVEL are numbers, status is one
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of "pre" (for an alpha release), "rc" (for a release candidate), or
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"." for a release. As a special case, "a.b.c" was equivalent to
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"a.b.c.0". We compare the elements in order (major, minor, micro,
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status, patchlevel, cvs), with "cvs" preceding non-cvs.
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We would start each development branch with a final version in mind:
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say, "0.0.8". Our first pre-release would be "0.0.8pre1", followed by
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(for example) "0.0.8pre2-cvs", "0.0.8pre2", "0.0.8pre3-cvs",
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"0.0.8rc1", "0.0.8rc2-cvs", and "0.0.8rc2". Finally, we'd release
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0.0.8. The stable CVS branch would then be versioned "0.0.8.1-cvs",
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and any eventual bugfix release would be "0.0.8.1".
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The New Way
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-----------
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After 0.1.0, versions are of the format:
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MAJOR.MINOR.MICRO(.PATCHLEVEL)(-status_tag)
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The stuff in parenthesis is optional. As before, MAJOR, MINOR, MICRO,
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and PATCHLEVEL are numbers, with an absent number equivalent to 0.
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All versions should be distinguishable purely by those four
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numbers. The status tag is purely informational, and lets you know how
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stable we think the release is: "alpha" is pretty unstable; "rc" is a
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release candidate; and no tag at all means that we have a final
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release. If the tag ends with "-cvs", you're looking at a development
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snapshot that came after a given release. If we *do* encounter two
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versions that differ only by status tag, we compare them lexically.
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Now, we start each development branch with (say) 0.1.1.1-alpha. The
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patchlevel increments consistently as the status tag changes, for
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example, as in: 0.1.1.2-alpha, 0.1.1.3-alpha, 0.1.1.4-rc 0.1.1.5-rc,
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Eventually, we release 0.1.1.6. The next patch release is 0.1.1.7.
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Between these releases, CVS is versioned with a -cvs tag: after
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0.1.1.1-alpha comes 0.1.1.1-alpha-cvs, and so on.
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