Microsoft.Extensions.Caching.Memory 10.0.0-preview.5.25277.114

About

Provides implementations for local and distributed in-memory cache. It stores and retrieves data in a fast and efficient way.

Key Features

  • A concrete implementation of the IMemoryCache interface, which represents a local in-memory cache that stores and retrieves data in a fast and efficient way
  • A distributed cache that supports higher scale-out than local cache
  • Expiration and eviction policies for its entries
  • Entry prioritization for when the cache size limit is exceeded and needs to be compacted by entry eviction
  • Track of cache statictics

How to Use

Use Microsoft.Extensions.Caching.Memory over System.Runtime.Caching when working with ASP.NET Core as it provides better integration support. For example, IMemoryCache works natively with ASP.NET Core dependency injection.

Local in-memory serialization:

using Microsoft.Extensions.Caching.Memory;

using MemoryCache cache = new(new MemoryCacheOptions());

object valueToCache = new();
string key = "key";

using (ICacheEntry entry = cache.CreateEntry(key))
{
    // Entries are committed after they are disposed therefore it does not exist yet.
    Console.WriteLine($"Exists: {cache.TryGetValue(key, out _)}\n");

    entry.Value = valueToCache;
    entry.SlidingExpiration = TimeSpan.FromSeconds(2);
}

bool exists = cache.TryGetValue(key, out object? cachedValue);
Console.WriteLine($"Exists: {exists}" );
Console.WriteLine($"cachedValue is valueToCache? {object.ReferenceEquals(cachedValue, valueToCache)}\n");

Console.WriteLine("Wait for the sliding expiration...");
Thread.Sleep(TimeSpan.FromSeconds(2));

Console.WriteLine("Exists: " + cache.TryGetValue(key, out _));

// You can also use the acceleration extensions to set and get entries
string key2 = "key2";
object value2 = new();

cache.Set("key2", value2);

object? cachedValue2 = cache.Get(key2);
Console.WriteLine($"cachedValue2 is value2? {object.ReferenceEquals(cachedValue2, value2)}");

Main Types

The main types provided by this library are:

  • Microsoft.Extensions.Caching.Memory.MemoryCache
  • Microsoft.Extensions.Caching.Memory.MemoryCacheOptions
  • Microsoft.Extensions.Caching.Distributed.MemoryDistributedCache
  • Microsoft.Extensions.Caching.Memory.MemoryDistributedCacheOptions

Additional Documentation

Microsoft.Extensions.Caching.Abstractions

Feedback & Contributing

Microsoft.Extensions.Caching.Memory is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

Showing the top 20 packages that depend on Microsoft.Extensions.Caching.Memory.

Packages Downloads
Microsoft.Extensions.Caching.Hybrid
Experimental package. Multi-level caching implementation building on and extending IDistributedCache
3
Microsoft.EntityFrameworkCore.InMemory
In-memory database provider for Entity Framework Core (to be used for testing purposes).
3
Microsoft.EntityFrameworkCore
Entity Framework Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations. EF Core works with SQL Server, Azure SQL Database, SQLite, Azure Cosmos DB, MySQL, PostgreSQL, and other databases through a provider plugin API. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet
3
Microsoft.EntityFrameworkCore.Relational
Shared Entity Framework Core components for relational database providers.
3
Microsoft.EntityFrameworkCore.SqlServer
Microsoft SQL Server database provider for Entity Framework Core.
3
Microsoft.Identity.Web.TokenCache
This package bring token cache serializers for MSAL.NET confidential client applications.
3
Microsoft.AspNetCore.App
Microsoft.AspNetCore.App
2
Microsoft.AspNetCore.Mvc
ASP.NET Core MVC is a web framework that gives you a powerful, patterns-based way to build dynamic websites and web APIs. ASP.NET Core MVC enables a clean separation of concerns and gives you full control over markup.
2
Microsoft.EntityFrameworkCore.InMemory
In-memory database provider for Entity Framework Core (to be used for testing purposes).
2
Microsoft.Identity.Web.TokenCache
This package bring token cache serializers for MSAL.NET confidential client applications.
2
IdentityModel.AspNetCore.OAuth2Introspection
ASP.NET Core authentication handler for validating tokens using OAuth 2.0 introspection
2
IdentityModel.AspNetCore.OAuth2Introspection
ASP.NET Core 2.0 Middleware for validating tokens using OAuth 2.0 introspection
2
Z.Expressions.Eval
Evaluate, Compile and Execute C# code at runtime. Support: Dynamic LINQ, Extension Method, Expando Object, and more! Online Example: https://dotnetfiddle.net/COq6FC Include free and prime features.
2
Microsoft.Identity.Web
This package enables ASP.NET Core web apps and web APIs to use the Microsoft identity platform (formerly Azure AD v2.0). This package is specifically used for web applications, which sign-in users, and protected web APIs, which optionally call downstream web APIs.
2
Microsoft.AspNetCore.App
Provides a default set of APIs for building an ASP.NET Core application. This package requires the ASP.NET Core runtime. This runtime is installed by the .NET Core SDK, or can be acquired separately using installers available at https://aka.ms/dotnet-download.
2

https://go.microsoft.com/fwlink/?LinkID=799421

.NET Framework 4.6.2

.NET Standard 2.0

.NET 10.0

.NET 9.0

.NET 8.0

Version Downloads Last updated
10.0.0-preview.5.25277.114 1 6/11/2025
10.0.0-preview.4.25258.110 1 6/12/2025
10.0.0-preview.3.25171.5 1 6/12/2025
10.0.0-preview.2.25163.2 1 6/12/2025
10.0.0-preview.1.25080.5 1 6/12/2025
9.0.6 1 6/13/2025
9.0.5 1 6/12/2025
9.0.4 1 6/12/2025
9.0.3 1 6/12/2025
9.0.2 1 6/12/2025
9.0.1 1 6/12/2025
9.0.0 1 6/12/2025
9.0.0-rc.2.24473.5 1 6/12/2025
9.0.0-rc.1.24431.7 1 6/12/2025
9.0.0-preview.7.24405.7 1 6/12/2025
9.0.0-preview.6.24327.7 1 6/12/2025
9.0.0-preview.5.24306.7 1 6/13/2025
9.0.0-preview.4.24266.19 1 6/12/2025
9.0.0-preview.3.24172.9 1 6/12/2025
9.0.0-preview.2.24128.5 1 6/12/2025
9.0.0-preview.1.24080.9 1 6/12/2025
8.0.1 1 6/12/2025
8.0.0 1 6/12/2025
8.0.0-rc.2.23479.6 1 6/12/2025
8.0.0-rc.1.23419.4 1 6/12/2025
8.0.0-preview.7.23375.6 1 6/12/2025
8.0.0-preview.6.23329.7 1 6/12/2025
8.0.0-preview.5.23280.8 1 6/12/2025
8.0.0-preview.4.23259.5 1 6/12/2025
8.0.0-preview.3.23174.8 1 6/13/2025
8.0.0-preview.2.23128.3 1 6/12/2025
8.0.0-preview.1.23110.8 1 6/13/2025
7.0.0 1 6/12/2025
7.0.0-rc.2.22472.3 1 6/12/2025
7.0.0-rc.1.22426.10 1 6/12/2025
7.0.0-preview.7.22375.6 1 6/12/2025
7.0.0-preview.6.22324.4 1 6/12/2025
7.0.0-preview.5.22301.12 2 6/10/2025
7.0.0-preview.4.22229.4 1 6/12/2025
7.0.0-preview.3.22175.4 1 6/12/2025
7.0.0-preview.2.22152.2 1 6/13/2025
7.0.0-preview.1.22076.8 1 6/12/2025
6.0.3 1 6/12/2025
6.0.2 1 6/12/2025
6.0.1 1 6/12/2025
6.0.0 1 6/12/2025
6.0.0-rc.2.21480.5 2 6/12/2025
6.0.0-rc.1.21451.13 1 6/12/2025
6.0.0-preview.7.21377.19 1 6/12/2025
6.0.0-preview.6.21352.12 0 7/14/2021
6.0.0-preview.5.21301.5 1 6/12/2025
6.0.0-preview.4.21253.7 1 6/12/2025
6.0.0-preview.3.21201.4 1 6/12/2025
6.0.0-preview.2.21154.6 1 6/12/2025
6.0.0-preview.1.21102.12 1 6/12/2025
5.0.0 1 6/12/2025
5.0.0-rc.2.20475.5 1 6/12/2025
5.0.0-rc.1.20451.14 1 6/13/2025
5.0.0-preview.8.20407.11 1 6/12/2025
5.0.0-preview.7.20364.11 1 6/12/2025
5.0.0-preview.6.20305.6 1 6/12/2025
5.0.0-preview.5.20278.1 1 6/12/2025
5.0.0-preview.4.20251.6 1 6/12/2025
5.0.0-preview.3.20215.2 1 6/12/2025
5.0.0-preview.2.20160.3 1 6/12/2025
5.0.0-preview.1.20120.4 1 6/12/2025
3.1.32 1 6/12/2025
3.1.31 1 6/12/2025
3.1.30 1 6/12/2025
3.1.29 1 6/12/2025
3.1.28 1 6/12/2025
3.1.27 1 6/12/2025
3.1.26 1 6/12/2025
3.1.25 1 6/12/2025
3.1.24 1 6/12/2025
3.1.23 1 6/12/2025
3.1.22 1 6/12/2025
3.1.21 1 6/12/2025
3.1.20 1 6/12/2025
3.1.19 1 6/12/2025
3.1.18 1 6/12/2025
3.1.17 1 6/12/2025
3.1.16 1 6/12/2025
3.1.15 1 6/12/2025
3.1.14 1 6/12/2025
3.1.13 1 6/12/2025
3.1.12 1 6/12/2025
3.1.11 1 6/12/2025
3.1.10 1 6/12/2025
3.1.9 1 6/12/2025
3.1.8 1 6/12/2025
3.1.7 1 6/12/2025
3.1.6 1 6/12/2025
3.1.5 1 6/12/2025
3.1.4 1 6/12/2025
3.1.3 1 6/12/2025
3.1.2 1 6/12/2025
3.1.1 0 1/14/2020
3.1.0 1 6/12/2025
3.1.0-preview3.19553.2 1 6/12/2025
3.1.0-preview2.19525.4 1 6/12/2025
3.1.0-preview1.19506.1 1 6/12/2025
3.0.3 1 6/12/2025
3.0.2 1 6/12/2025
3.0.1 2 6/12/2025
3.0.0 1 6/12/2025
3.0.0-rc1.19456.10 1 6/12/2025
3.0.0-preview9.19423.4 1 6/12/2025
3.0.0-preview8.19405.4 1 6/12/2025
3.0.0-preview7.19362.4 1 6/12/2025
3.0.0-preview6.19304.6 1 6/12/2025
3.0.0-preview5.19227.9 1 6/12/2025
3.0.0-preview4.19216.2 2 6/7/2025
3.0.0-preview3.19153.1 1 6/12/2025
3.0.0-preview.19074.2 1 6/12/2025
3.0.0-preview.18572.1 1 6/13/2025
2.2.0 1 6/12/2025
2.2.0-preview3-35497 1 6/12/2025
2.2.0-preview2-35157 1 6/12/2025
2.2.0-preview1-35029 1 6/12/2025
2.1.23 1 6/12/2025
2.1.2 1 6/12/2025
2.1.1 1 6/12/2025
2.1.0 2 6/7/2025
2.1.0-rc1-final 2 6/9/2025
2.1.0-preview2-final 1 6/12/2025
2.1.0-preview1-final 1 6/12/2025
2.0.2 1 6/12/2025
2.0.1 1 6/12/2025
2.0.0 1 6/12/2025
2.0.0-preview2-final 1 6/12/2025
2.0.0-preview1-final 1 6/12/2025
1.1.2 1 6/12/2025
1.1.1 1 6/12/2025
1.1.0 1 6/12/2025
1.1.0-preview1-final 1 6/12/2025
1.0.2 1 6/12/2025
1.0.1 1 6/12/2025
1.0.0 1 6/12/2025
1.0.0-rc2-final 1 6/12/2025
1.0.0-rc1-final 1 6/12/2025