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NuGet · #2680 most downloaded on NuGet
The extremely fast enum utilities for C#/.NET. Provided methods are all achieved zero allocation and faster than System.Enum.
Last release 2 months ago
26 Jul 2026
Ships unpredictably
gaps range from 1 weeks to 2.2 years
Some releases are documented
notes for 9 of 25 stable releases
5 versions withdrawn
withdrawn after publishing
127 years old
30 releases · first in 1900
Use extension members by @xin9le in #105
One column per quarter.
Specify commit hash by @xin9le in #91
GetHashCode performance by @xin9le in #94.ToNumberString() performance by @xin9le in #96.IsDefined(ReadOnlySpan<char>) performance by @xin9le in #97.TryParseName() performance by @xin9le in #98FrozenDictionary<K,V> in .NET 10 instead of FastReadOnlyDictionary<K,V> by @xin9le in #102Full Changelog: v2.0.6...v2.0.7
goto Shouldly; by @xin9le in #74
.slnx by @xin9le in #79Full Changelog: v2.0.5...v2.0.6
Update nuget packages by @xin9le in #64
Unsafe.BitCast() to Unsafe.As() by @xin9le in #65.GetUnderlyingType<T>() method by @xin9le in #68Full Changelog: v2.0.4...v2.0.5
Enhance code coverages by @xin9le in #57
Full Changelog: v2.0.3...v2.0.4
Fix .GetName() method inconsistency for enums with duplicate values by @xin9le in #55
.GetName() method inconsistency for enums with duplicate values by @xin9le in #55Full Changelog: v2.0.2...v2.0.3
Refine GitHub Actions by @xin9le in #50
Downgrade the referenced version of Microsoft.CodeAnalysis.CSharp to 4.4.0 by @xin9le in #47
Change directory structure by @xin9le in #14
ImmutableArray<T> by @xin9le in #19ReadOnlySpan<char> by @xin9le in #23ReadOnlySpan<byte> overloads by @xin9le in #36ReadOnlySpan<byte> overloads by @xin9le in #37.ToString() by @xin9le in #38StringHelper type by @xin9le in #39Full Changelog: v1.8.0...v2.0.0
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