System.Runtime 4.3.1
Provides the fundamental primitives, classes and base classes that define commonly-used value and reference data types, events and event handlers, interfaces, attributes, and exceptions. This packages represents the core package, and provides the minimal set of types required to build a managed application.
Commonly Used Types:
System.Object
System.Exception
System.Int16
System.Int32
System.Int64
System.Enum
System.String
System.Char
System.Boolean
System.SByte
System.Byte
System.DateTime
System.DateTimeOffset
System.Single
System.Double
System.UInt16
System.UInt32
System.UInt64
System.IDisposable
System.Uri
When using NuGet 3.x this package requires at least version 3.4.
Showing the top 20 packages that depend on System.Runtime.
| Packages | Downloads |
|---|---|
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System.Globalization
Provides classes that define culture-related information, including language, country/region, calendars in use, format patterns for dates, currency, and numbers, and sort order for strings.
Commonly Used Types:
System.Globalization.DateTimeFormatInfo
System.Globalization.CultureInfo
System.Globalization.NumberFormatInfo
System.Globalization.CalendarWeekRule
System.Globalization.TextInfo
System.Globalization.Calendar
System.Globalization.CompareInfo
System.Globalization.CompareOptions
System.Globalization.UnicodeCategory
When using NuGet 3.x this package requires at least version 3.4.
|
8 |
|
System.Text.Encoding
Provides base abstract encoding classes for converting blocks of characters to and from blocks of bytes.
Commonly Used Types:
System.Text.Encoding
System.Text.DecoderFallbackException
System.Text.Decoder
System.Text.EncoderFallbackException
System.Text.Encoder
System.Text.EncoderFallback
System.Text.EncoderFallbackBuffer
System.Text.DecoderFallback
System.Text.DecoderFallbackBuffer
System.Text.DecoderExceptionFallback
When using NuGet 3.x this package requires at least version 3.4.
|
7 |
|
System.IO
Provides base input and output (I/O) types, including System.IO.Stream, System.IO.StreamReader and System.IO.StreamWriter, that allow reading and writing to data streams
Commonly Used Types:
System.IO.Stream
System.IO.EndOfStreamException
System.IO.MemoryStream
System.IO.StreamReader
System.IO.StreamWriter
System.IO.StringWriter
System.IO.TextWriter
System.IO.TextReader
When using NuGet 3.x this package requires at least version 3.4.
|
6 |
|
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.
|
6 |
|
System.Memory
Provides types for efficient representation and pooling of managed, stack, and native memory segments and sequences of such segments, along with primitives to parse and format UTF-8 encoded text stored in those memory segments.
Commonly Used Types:
System.Span
System.ReadOnlySpan
System.Memory
System.ReadOnlyMemory
System.Buffers.MemoryPool
System.Buffers.ReadOnlySequence
System.Buffers.Text.Utf8Parser
System.Buffers.Text.Utf8Formatter
c6cf790234e063b855fcdb50f3fb1b3cfac73275
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Threading
Provides the fundamental synchronization primitives, including System.Threading.Monitor and System.Threading.Mutex, that are required when writing asynchronous code.
Commonly Used Types:
System.Threading.Monitor
System.Threading.SynchronizationContext
System.Threading.ManualResetEvent
System.Threading.AutoResetEvent
System.Threading.ThreadLocal<T>
System.Threading.EventWaitHandle
System.Threading.SemaphoreSlim
System.Threading.Mutex
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Net.Sockets
Provides classes such as Socket, TcpClient and UdpClient, which enable developers to send and receive data over the network.
Commonly Used Types:
System.Net.Sockets.Socket
System.Net.Sockets.SocketAsyncEventArgs
System.Net.Sockets.LingerOption
System.Net.Sockets.SocketAsyncOperation
System.Net.Sockets.ProtocolType
System.Net.Sockets.NetworkStream
System.Net.Sockets.TcpClient
System.Net.Sockets.SocketType
System.Net.Sockets.UdpClient
System.Net.Sockets.SocketShutdown
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Net.WebHeaderCollection
Contains types that represent HTTP request and response headers. This library is used with classes such as System.Net.HttpWebRequest and System.Net.HttpWebResponse and allows developers to query/edit header names/values.
Commonly Used Types:
System.Net.HttpRequestHeader
System.Net.HttpResponseHeader
System.Net.WebHeaderCollection
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Buffers
Provides resource pooling of any type for performance-critical applications that allocate and deallocate objects frequently.
Commonly Used Types:
System.Buffers.ArrayPool<T>
7601f4f6225089ffb291dc7d58293c7bbf5c5d4f
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
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
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5 |
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System.Runtime.InteropServices.RuntimeInformation
Provides APIs to query about runtime and OS information.
Commonly Used Types:
System.Runtime.InteropServices.RuntimeInformation
System.Runtime.InteropServices.OSPlatform
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Resources.ResourceManager
Provides classes and attributes that allow developers to create, store, and manage various culture-specific resources used in an application.
Commonly Used Types:
System.Resources.ResourceManager
System.Resources.NeutralResourcesLanguageAttribute
System.Resources.SatelliteContractVersionAttribute
System.Resources.MissingManifestResourceException
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.IO.FileSystem.Primitives
Provides common enumerations and exceptions for path-based I/O libraries.
Commonly Used Types:
System.IO.DirectoryNotFoundException
System.IO.FileAccess
System.IO.FileLoadException
System.IO.PathTooLongException
System.IO.FileMode
System.IO.FileShare
System.IO.FileAttributes
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Security.Claims
Provides classes that implement claims-based identity in the .NET Framework, including classes that represent claims, claims-based identities, and claims-based principals.
Commonly Used Types:
System.Security.Principal.GenericIdentity
System.Security.Claims.Claim
System.Security.Claims.ClaimsIdentity
System.Security.Claims.ClaimsPrincipal
System.Security.Principal.GenericPrincipal
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Threading.ThreadPool
Provides the System.Threading.ThreadPool class, which contains a pool of threads that can be used to execute tasks, post work items, wait on behalf of other threads, and process timers.
Commonly Used Types:
System.Threading.ThreadPool
System.Threading.WaitOrTimerCallback
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
System.Threading.Overlapped
Provides common types for interacting with asynchronous (or overlapped) input and output (I/O).
Commonly Used Types:
System.Threading.NativeOverlapped
System.Threading.Overlapped
System.Threading.IOCompletionCallback
When using NuGet 3.x this package requires at least version 3.4.
|
5 |
|
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.
|
5 |
|
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.
|
5 |
|
System.Collections
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.
|
5 |
|
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.
|
5 |
https://go.microsoft.com/fwlink/?LinkID=799421
MonoAndroid 1.0
- No dependencies.
MonoTouch 1.0
- No dependencies.
.NET Framework 4.5
- No dependencies.
.NET Framework 4.6.2
- No dependencies.
.NETCore 5.0
- Microsoft.NETCore.Platforms (>= 1.1.1)
- Microsoft.NETCore.Targets (>= 1.1.3)
.NET Standard 1.0
- Microsoft.NETCore.Platforms (>= 1.1.1)
- Microsoft.NETCore.Targets (>= 1.1.3)
.NET Standard 1.2
- Microsoft.NETCore.Platforms (>= 1.1.1)
- Microsoft.NETCore.Targets (>= 1.1.3)
.NET Standard 1.3
- Microsoft.NETCore.Platforms (>= 1.1.1)
- Microsoft.NETCore.Targets (>= 1.1.3)
.NET Standard 1.5
- Microsoft.NETCore.Platforms (>= 1.1.1)
- Microsoft.NETCore.Targets (>= 1.1.3)
.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 |
|---|---|---|
| 4.3.1 | 12 | 2026/1/23 |
| 4.3.0 | 5 | 2026/1/22 |
| 4.3.0-preview1-24530-04 | 2 | 2026/1/25 |
| 4.1.2 | 2 | 2026/1/23 |
| 4.1.1 | 2 | 2026/1/23 |
| 4.1.0 | 2 | 2026/1/23 |
| 4.1.0-rc2-24027 | 1 | 2026/3/28 |
| 4.0.21-beta-23516 | 2 | 2026/1/25 |
| 4.0.21-beta-23409 | 2 | 2026/1/25 |
| 4.0.21-beta-23225 | 2 | 2026/1/25 |
| 4.0.20 | 1 | 2026/3/27 |
| 4.0.20-beta-23109 | 2 | 2026/1/23 |
| 4.0.20-beta-23019 | 2 | 2026/1/25 |
| 4.0.20-beta-22816 | 2 | 2026/1/25 |
| 4.0.20-beta-22605 | 2 | 2026/1/25 |
| 4.0.20-beta-22416 | 2 | 2026/1/25 |
| 4.0.20-beta-22231 | 2 | 2026/1/25 |
| 4.0.10 | 1 | 2026/3/27 |
| 4.0.10-beta-23109 | 2 | 2026/1/25 |
| 4.0.10-beta-23019 | 2 | 2026/1/25 |
| 4.0.0 | 2 | 2026/1/23 |
| 4.0.0-beta-23109 | 2 | 2026/1/25 |
| 4.0.0-beta-23019 | 2 | 2026/1/25 |