A Semantic Version Library for .Net

Create, parse, and manipulate semantic version numbers with the SemVersion class and semantic version ranges with the SemVersionRange class. This library complies with v2.0.0 of the semantic versioning spec from semver.org.

API docs for the most recent release are available online at semver-nuget.org.

We've Moved; Nothing is Changing

You may have noticed that this repository has moved between accounts recently (from maxhauser to WalkerCodeRanger). This move reflects who has been the primary maintainer for the last five years. Nothing will change with how the project is managed or run. Look for the next major release, 3.0, to come out within the next month or two! (Sept. or Oct. 2024)

Parsing

var version = SemVersion.Parse("1.1.0-rc.1+e471d15", SemVersionStyles.Strict);

Constructing

var v1 = new SemVersion(1, 0);
var vNextRc = SemVersion.ParsedFrom(1, 1, 0, "rc.1");

Comparing

if (version.ComparePrecedenceTo(vNextRc) == 0)
    Console.WriteLine($"{version} has the same precedence as {vNextRc}");

if (version.CompareSortOrderTo(vNextRc) > 0)
    Console.WriteLine($"{version} sorts after {vNextRc}");

Outputs:

1.1.0-rc.1+e471d15 has the same precedence as 1.1.0-rc.1
1.1.0-rc.1+e471d15 sorts after 1.1.0-rc.1

Manipulating

Console.WriteLine($"Current: {version}");
if (version.IsPrerelease)
{
    Console.WriteLine($"Prerelease: {version.Prerelease}");
    Console.WriteLine($"Next release version is: {version.WithoutPrereleaseOrMetadata()}");
}

Outputs:

Current: 1.1.0-rc.1+nightly.2345
Prerelease: rc.1
Next release version is: 1.1.0

Version Ranges

var range = SemVersionRange.Parse("^1.0.0");
var prereleaseRange = SemVersionRange.ParseNpm("^1.0.0", includeAllPrerelease: true);
Console.WriteLine($"Range: {range}");
Console.WriteLine($"Prerelease range: {prereleaseRange}");
Console.WriteLine($"Range includes version {version}: {range.Contains(version)}");
Console.WriteLine($"Prerelease range includes version {version}: {prereleaseRange.Contains(version)}");

// Alternative: another way to call SemVersionRange.Contains(version)
version.Satisfies(range);

// Alternative: slower because it parses the range on every call
version.SatisfiesNpm("^1.0.0", includeAllPrerelease: true)

Outputs:

Range: 1.*
Prerelease range: *-* 1.*
Range includes version 1.1.0-rc.1+e471d15: False
Prerelease range includes version 1.1.0-rc.1+e471d15: True