System.Collections 4.3.0

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
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.
1,120
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.
1,085
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.
1,083
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.
1,082
System.Security.Cryptography.X509Certificates
Provides types for reading, exporting and verifying Authenticode X.509 v3 certificates. These certificates are signed with a private key that uniquely and positively identifies the holder of the certificate. Commonly Used Types: System.Security.Cryptography.X509Certificates.X509Certificate2 System.Security.Cryptography.X509Certificates.X509Certificate System.Security.Cryptography.X509Certificates.X509ContentType System.Security.Cryptography.X509Certificates.StoreLocation System.Security.Cryptography.X509Certificates.StoreName System.Security.Cryptography.X509Certificates.X509FindType System.Security.Cryptography.X509Certificates.X509ChainStatus System.Security.Cryptography.X509Certificates.X509Certificate2Collection System.Security.Cryptography.X509Certificates.X509EnhancedKeyUsageExtension System.Security.Cryptography.X509Certificates.X509Chain When using NuGet 3.x this package requires at least version 3.4.
1,081
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.
1,081
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.
1,080
System.Linq.Expressions
Provides classes, interfaces and enumerations that enable language-level code expressions to be represented as objects in the form of expression trees. Commonly Used Types: System.Linq.IQueryable<T> System.Linq.IQueryable System.Linq.Expressions.Expression<TDelegate> System.Linq.Expressions.Expression System.Linq.Expressions.ExpressionVisitor When using NuGet 3.x this package requires at least version 3.4.
1,076
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
1,074
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.
1,073
System.Net.Http
Provides a programming interface for modern HTTP applications, including HTTP client components that allow applications to consume web services over HTTP and HTTP components that can be used by both clients and servers for parsing HTTP headers. Commonly Used Types: System.Net.Http.HttpResponseMessage System.Net.Http.DelegatingHandler System.Net.Http.HttpRequestException System.Net.Http.HttpClient System.Net.Http.MultipartContent System.Net.Http.Headers.HttpContentHeaders System.Net.Http.HttpClientHandler System.Net.Http.StreamContent System.Net.Http.FormUrlEncodedContent System.Net.Http.HttpMessageHandler When using NuGet 3.x this package requires at least version 3.4.
1,066
System.Threading.Tasks.Extensions
Provides additional types that simplify the work of writing concurrent and asynchronous code. Commonly Used Types: System.Threading.Tasks.ValueTask<TResult>
1,064
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.
1,063
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.
1,063
System.IO.Compression
Provides classes that support the compression and decompression of streams. Commonly Used Types: System.IO.Compression.DeflateStream System.IO.Compression.GZipStream System.IO.Compression.CompressionMode System.IO.Compression.CompressionLevel System.IO.Compression.ZipArchiveEntry System.IO.Compression.ZipArchive System.IO.Compression.ZipArchiveMode When using NuGet 3.x this package requires at least version 3.4.
1,062
System.Xml.ReaderWriter
Provides provides a fast, non-cached, forward-only way to read and write Extensible Markup Language (XML) data. Commonly Used Types: System.Xml.XmlNodeType System.Xml.XmlException System.Xml.XmlReader System.Xml.XmlWriter System.Xml.IXmlLineInfo System.Xml.XmlNameTable System.Xml.IXmlNamespaceResolver System.Xml.XmlNamespaceManager System.Xml.XmlQualifiedName When using NuGet 3.x this package requires at least version 3.4.
1,062
System.Text.RegularExpressions
Provides the System.Text.RegularExpressions.Regex class, an implementation of a regular expression engine. Commonly Used Types: System.Text.RegularExpressions.Regex System.Text.RegularExpressions.RegexOptions System.Text.RegularExpressions.Match System.Text.RegularExpressions.Group System.Text.RegularExpressions.Capture System.Text.RegularExpressions.MatchEvaluator When using NuGet 3.x this package requires at least version 3.4.
1,061
System.Xml.XDocument
Provides the classes for Language-Integrated Query (LINQ) to Extensible Markup Language (XML). LINQ to XML is an in-memory XML programming interface that enables you to modify XML documents efficiently and easily. Commonly Used Types: System.Xml.Linq.XElement System.Xml.Linq.XAttribute System.Xml.Linq.XDocument System.Xml.Linq.XText System.Xml.Linq.XNode System.Xml.Linq.XContainer System.Xml.Linq.XComment System.Xml.Linq.XObject System.Xml.Linq.XProcessingInstruction System.Xml.Linq.XDocumentType When using NuGet 3.x this package requires at least version 3.4.
1,061
System.Net.Http
Provides a programming interface for modern HTTP applications, including HTTP client components that allow applications to consume web services over HTTP and HTTP components that can be used by both clients and servers for parsing HTTP headers. Commonly Used Types: System.Net.Http.HttpResponseMessage System.Net.Http.DelegatingHandler System.Net.Http.HttpRequestException System.Net.Http.HttpClient System.Net.Http.MultipartContent System.Net.Http.Headers.HttpContentHeaders System.Net.Http.HttpClientHandler System.Net.Http.StreamContent System.Net.Http.FormUrlEncodedContent System.Net.Http.HttpMessageHandler When using NuGet 3.x this package requires at least version 3.4.
980
System.Threading.Tasks.Extensions
Provides additional types that simplify the work of writing concurrent and asynchronous code. Commonly Used Types: System.Threading.Tasks.ValueTask<TResult> 7601f4f6225089ffb291dc7d58293c7bbf5c5d4f
353

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 1,194 10/03/2025
4.3.0-preview1-24530-04 0 10/24/2016
4.0.11 309 10/06/2025
4.0.11-rc2-24027 0 05/16/2016
4.0.11-beta-23516 0 11/18/2015
4.0.11-beta-23409 0 10/15/2015
4.0.11-beta-23225 0 09/01/2015
4.0.10 0 07/29/2015
4.0.10-beta-23109 0 07/27/2015
4.0.10-beta-23019 0 06/30/2015
4.0.10-beta-22816 0 04/24/2015
4.0.10-beta-22605 0 02/13/2015
4.0.10-beta-22416 0 01/16/2015
4.0.10-beta-22231 0 11/11/2014
4.0.0 0 07/29/2015
4.0.0-beta-23109 0 07/27/2015
4.0.0-beta-23019 0 06/30/2015