System.Collections 4.0.11

Provides classes that define generic collections, which allow developers to create strongly typed collections that provide better type safety and performance than non-generic strongly typed collections. Commonly Used Types: System.Collections.Generic.List<T> System.Collections.Generic.Dictionary<TKey, TValue> System.Collections.Generic.Queue<T> System.Collections.Generic.Stack<T> System.Collections.Generic.HashSet<T> System.Collections.Generic.LinkedList<T> System.Collections.Generic.EqualityComparer<T> System.Collections.Generic.Comparer<T> System.Collections.Generic.SortedDictionary<TKey, TValue> When using NuGet 3.x this package requires at least version 3.4.

Showing the top 20 packages that depend on System.Collections.

Packages Downloads
Microsoft.DotNet.PlatformAbstractions
Abstractions for making code that uses file system and environment testable.
2
NETStandard.Library
A set of standard .NET APIs that are prescribed to be used and supported together. This includes all of the APIs in the NETStandard.Platform package plus additional libraries that are core to .NET but built on top of NETStandard.Platform. When using NuGet 3.x this package requires at least version 3.4.
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NETStandard.Library
A set of standard .NET APIs that are prescribed to be used and supported together. This includes all of the APIs in the NETStandard.Platform package plus additional libraries that are core to .NET but built on top of NETStandard.Platform. When using NuGet 3.x this package requires at least version 3.4.
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System.AppContext
Provides the System.AppContext class, which allows access to the BaseDirectory property and other application specific data. Commonly Used Types: System.AppContext When using NuGet 3.x this package requires at least version 3.4.
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System.Collections.Concurrent
Provides several thread-safe collection classes that should be used in place of the corresponding types in the System.Collections.NonGeneric and System.Collections packages whenever multiple threads are accessing the collection concurrently. Commonly Used Types: System.Collections.Concurrent.ConcurrentDictionary<TKey, TValue> System.Collections.Concurrent.ConcurrentQueue<T> System.Collections.Concurrent.ConcurrentBag<T> System.Collections.Concurrent.BlockingCollection<T> System.Collections.Concurrent.ConcurrentStack<T> When using NuGet 3.x this package requires at least version 3.4.
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System.ComponentModel.TypeConverter
Provides the System.ComponentModel.TypeConverter class, which represents a unified way of converting types of values to other types. Commonly Used Types: System.ComponentModel.TypeConverter System.ComponentModel.TypeConverterAttribute System.ComponentModel.PropertyDescriptor System.ComponentModel.StringConverter System.ComponentModel.ITypeDescriptorContext System.ComponentModel.EnumConverter System.ComponentModel.TypeDescriptor System.ComponentModel.Int32Converter System.ComponentModel.BooleanConverter System.ComponentModel.DoubleConverter When using NuGet 3.x this package requires at least version 3.4.
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System.Diagnostics.DiagnosticSource
Provides Classes that allow you to decouple code logging rich (unserializable) diagnostics/telemetry (e.g. framework) from code that consumes it (e.g. tools) Commonly Used Types: System.Diagnostics.DiagnosticListener System.Diagnostics.DiagnosticSource
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System.Diagnostics.TraceSource
Provides classes that help you trace the execution of your code. Developers should prefer the classes in the ETW-based System.Diagnostics.Tracing package. Commonly Used Types: System.Diagnostics.TraceListener System.Diagnostics.TraceLevel System.Diagnostics.TraceSource System.Diagnostics.TraceEventType System.Diagnostics.DefaultTraceListener System.Diagnostics.Trace When using NuGet 3.x this package requires at least version 3.4.
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System.Dynamic.Runtime
Provides classes and interfaces that support the Dynamic Language Runtime (DLR). Commonly Used Types: System.Runtime.CompilerServices.CallSite System.Runtime.CompilerServices.CallSite<T> System.Dynamic.IDynamicMetaObjectProvider System.Dynamic.DynamicMetaObject System.Dynamic.SetMemberBinder System.Dynamic.GetMemberBinder System.Dynamic.ExpandoObject System.Dynamic.DynamicObject System.Runtime.CompilerServices.CallSiteBinder System.Runtime.CompilerServices.ConditionalWeakTable<TKey, TValue> When using NuGet 3.x this package requires at least version 3.4.
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System.Linq
Provides classes and interfaces that supports queries that use Language-Integrated Query (LINQ). Commonly Used Types: System.Linq.Enumerable System.Linq.IGrouping<TKey, TElement> System.Linq.IOrderedEnumerable<TElement> System.Linq.ILookup<TKey, TElement> System.Linq.Lookup<TKey, TElement> When using NuGet 3.x this package requires at least version 3.4.
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System.Linq
Provides classes and interfaces that supports queries that use Language-Integrated Query (LINQ). Commonly Used Types: System.Linq.Enumerable System.Linq.IGrouping<TKey, TElement> System.Linq.IOrderedEnumerable<TElement> System.Linq.ILookup<TKey, TElement> System.Linq.Lookup<TKey, TElement> When using NuGet 3.x this package requires at least version 3.4.
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System.Linq.Queryable
Provides classes for querying data structures that implement IQueryable<T>. Commonly Used Types: System.Linq.Queryable System.Linq.EnumerableQuery<T> System.Linq.EnumerableQuery When using NuGet 3.x this package requires at least version 3.4.
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System.ObjectModel
Provides types and interfaces that allow the creation of observable types that provide notifications to clients when changes are made to it. Commonly Used Types: System.ComponentModel.INotifyPropertyChanged System.Collections.ObjectModel.ObservableCollection<T> System.ComponentModel.PropertyChangedEventHandler System.Windows.Input.ICommand System.Collections.Specialized.INotifyCollectionChanged System.Collections.Specialized.NotifyCollectionChangedEventArgs System.Collections.Specialized.NotifyCollectionChangedEventHandler System.Collections.ObjectModel.KeyedCollection<TKey, TItem> System.ComponentModel.PropertyChangedEventArgs System.Collections.ObjectModel.ReadOnlyDictionary<TKey, TValue> When using NuGet 3.x this package requires at least version 3.4.
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System.Security.Cryptography.Algorithms
Provides base types for cryptographic algorithms, including hashing, encryption, and signing operations. Commonly Used Types: System.Security.Cryptography.Aes System.Security.Cryptography.RSA System.Security.Cryptography.RSAParameters System.Security.Cryptography.HMACSHA1 System.Security.Cryptography.SHA256 System.Security.Cryptography.SHA1 System.Security.Cryptography.SHA512 System.Security.Cryptography.SHA384 System.Security.Cryptography.HMACSHA256 System.Security.Cryptography.MD5 System.Security.Cryptography.HMACSHA384 System.Security.Cryptography.HMACSHA512 When using NuGet 3.x this package requires at least version 3.4.
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System.Security.Cryptography.Encoding
Provides types for representing Abstract Syntax Notation One (ASN.1)-encoded data. Commonly Used Types: System.Security.Cryptography.AsnEncodedData System.Security.Cryptography.Oid System.Security.Cryptography.OidCollection When using NuGet 3.x this package requires at least version 3.4.
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System.Security.Cryptography.OpenSsl
Provides cryptographic algorithm implementations and key management for non-Windows systems with OpenSSL. Commonly Used Types: System.Security.Cryptography.RSAOpenSsl When using NuGet 3.x this package requires at least version 3.4.
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System.Security.Principal.Windows
Provides classes for retrieving the current Windows user and for interacting with Windows users and groups. Commonly Used Types: System.Security.Principal.WindowsIdentity System.Security.Principal.SecurityIdentifier System.Security.Principal.NTAccount System.Security.Principal.WindowsPrincipal System.Security.Principal.IdentityReference System.Security.Principal.IdentityNotMappedException System.Security.Principal.WindowsBuiltInRole System.Security.Principal.WellKnownSidType 8321c729934c0f8be754953439b88e6e1c120c24 When using NuGet 3.x this package requires at least version 3.4.
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System.Security.Principal.Windows
Provides classes for retrieving the current Windows user and for interacting with Windows users and groups. Commonly Used Types: System.Security.Principal.WindowsIdentity System.Security.Principal.SecurityIdentifier System.Security.Principal.NTAccount System.Security.Principal.WindowsPrincipal System.Security.Principal.IdentityReference System.Security.Principal.IdentityNotMappedException System.Security.Principal.WindowsBuiltInRole System.Security.Principal.WellKnownSidType When using NuGet 3.x this package requires at least version 3.4.
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MonoAndroid 1.0

  • No dependencies.

MonoTouch 1.0

  • No dependencies.

.NET Framework 4.5

  • No dependencies.

.NETCore 5.0

.NET Standard 1.0

.NET Standard 1.3

.NETPortable 0.0

  • No dependencies.

Windows 8.0

  • No dependencies.

WindowsPhone 8.0

  • No dependencies.

WindowsPhoneApp 8.1

  • No dependencies.

Xamarin.iOS 1.0

  • No dependencies.

Xamarin.Mac 2.0

  • No dependencies.

Xamarin.TVOS 1.0

  • No dependencies.

Xamarin.WatchOS 1.0

  • No dependencies.

Version Downloads Last updated
4.3.0 4 2/10/2026
4.0.11 3 2/10/2026