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Merge pull request #77 from mojombo/build-metadata-identifier

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Build metadata identifier
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Phil Haack 2013-03-20 15:00:55 -07:00
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Semantic Versioning 2.0.0-rc.1
Semantic Versioning 2.0.0-rc.2
==============================
In the world of software management there exists a dread place called
@ -79,22 +79,23 @@ MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-]. Pre-release
versions satisfy but have a lower precedence than the associated normal
version. Examples: 1.0.0-alpha, 1.0.0-alpha.1, 1.0.0-0.3.7, 1.0.0-x.7.z.92.
1. A build version MAY be denoted by appending a plus sign and a series of dot
separated identifiers immediately following the patch version or pre-release
version. Identifiers MUST be comprised of only ASCII alphanumerics and hyphen
[0-9A-Za-z-]. Build versions satisfy and have a higher precedence than the
associated normal version. Examples: 1.0.0+build.1, 1.3.7+build.11.e0f985a.
1. Build metadata MAY be denoted by appending a plus sign and a series of dot
separated identifiers immediately following the patch or pre-release version.
Identifiers MUST comprise only ASCII alphanumerics and hyphen [0-9A-Za-z-].
Build metadata SHOULD be ignored when determining version precedence. Thus two
packages with the same version, but different build metadata are considered to
be the same version. Examples: 1.0.0-alpha+001, 1.0.0+20130313144700,
1.0.0-beta+exp.sha.5114f85.
1. Precedence MUST be calculated by separating the version into major, minor,
patch, pre-release, and build identifiers in that order. Major, minor, and
patch versions are always compared numerically. Pre-release and build version
precedence MUST be determined by comparing each dot separated identifier as
follows: identifiers consisting of only digits are compared numerically and
identifiers with letters or hyphens are compared lexically in ASCII sort order.
Numeric identifiers always have lower precedence than non-numeric identifiers.
Example: 1.0.0-alpha < 1.0.0-alpha.1 < 1.0.0-beta.2 < 1.0.0-beta.11 <
1.0.0-rc.1 < 1.0.0-rc.1+build.1 < 1.0.0 < 1.0.0+0.3.7 < 1.3.7+build <
1.3.7+build.2.b8f12d7 < 1.3.7+build.11.e0f985a.
patch and pre-release identifiers in that order (Build metadata does not figure
into precedence). Major, minor, and patch versions are always compared
numerically. Pre-release precedence MUST be determined by comparing each dot
separated identifier as follows: identifiers consisting of only digits are
compared numerically and identifiers with letters or hyphens are compared
lexically in ASCII sort order. Numeric identifiers always have lower precedence
than non-numeric identifiers. Example: 1.0.0-alpha < 1.0.0-alpha.1 <
1.0.0-beta.2 < 1.0.0-beta.11 < 1.0.0-rc.1 < 1.0.0.
Why Use Semantic Versioning?
----------------------------