Microsoft.Extensions.Caching.Memory 9.0.0-preview.5.24306.7

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.EntityFrameworkCore
Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet This package was built from the source code at https://github.com/aspnet/EntityFrameworkCore/tree/bf24028cec2e5f63c02307865729f3c1b3afcf38
44
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
42
Microsoft.EntityFrameworkCore
Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet
42
Microsoft.EntityFrameworkCore
Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet
41
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
40
Microsoft.EntityFrameworkCore
Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet
40
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
39
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
38
Microsoft.EntityFrameworkCore
Entity Framework Core is a lightweight and extensible version of the popular Entity Framework data access technology. Commonly Used Types: Microsoft.EntityFrameworkCore.DbContext Microsoft.EntityFrameworkCore.DbSet
38
Microsoft.AspNetCore.ResponseCaching
ASP.NET Core middleware for caching HTTP responses on the server. This package was built from the source at: https://github.com/aspnet/ResponseCaching/tree/b21b893ad3bdeb2862ac990a39ed9f8f211fa6e1
38
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
37

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

.NET Framework 4.6.2

.NET Standard 2.0

.NET 9.0

.NET 8.0

Version Downloads Last updated
10.0.0-rc.1.25451.107 4 9/11/2025
10.0.0-preview.7.25380.108 9 8/14/2025
10.0.0-preview.6.25358.103 8 7/17/2025
10.0.0-preview.5.25277.114 13 6/8/2025
10.0.0-preview.4.25258.110 14 5/17/2025
10.0.0-preview.3.25171.5 18 4/21/2025
10.0.0-preview.2.25163.2 16 3/24/2025
10.0.0-preview.1.25080.5 20 2/25/2025
9.0.9 5 9/11/2025
9.0.8 11 8/8/2025
9.0.7 7 7/8/2025
9.0.6 10 6/12/2025
9.0.5 16 5/16/2025
9.0.4 15 4/21/2025
9.0.3 16 3/14/2025
9.0.2 25 2/19/2025
9.0.1 22 2/19/2025
9.0.0 21 1/4/2025
9.0.0-rc.2.24473.5 20 10/8/2024
9.0.0-rc.1.24431.7 20 9/20/2024
9.0.0-preview.7.24405.7 20 8/17/2024
9.0.0-preview.6.24327.7 23 8/2/2024
9.0.0-preview.5.24306.7 22 8/8/2024
9.0.0-preview.4.24266.19 26 8/3/2024
9.0.0-preview.3.24172.9 29 4/15/2024
9.0.0-preview.2.24128.5 27 4/26/2024
9.0.0-preview.1.24080.9 31 3/7/2024
8.0.1 25 10/8/2024
8.0.0 38 3/7/2024
8.0.0-rc.2.23479.6 29 3/7/2024
8.0.0-rc.1.23419.4 26 3/7/2024
8.0.0-preview.7.23375.6 30 3/7/2024
8.0.0-preview.6.23329.7 26 3/7/2024
8.0.0-preview.5.23280.8 29 7/2/2023
8.0.0-preview.4.23259.5 30 3/7/2024
8.0.0-preview.3.23174.8 34 3/7/2024
8.0.0-preview.2.23128.3 33 3/7/2024
8.0.0-preview.1.23110.8 27 2/27/2024
7.0.0 33 3/7/2024
7.0.0-rc.2.22472.3 24 3/7/2024
7.0.0-rc.1.22426.10 24 3/7/2024
7.0.0-preview.7.22375.6 27 3/7/2024
7.0.0-preview.6.22324.4 34 3/7/2024
7.0.0-preview.5.22301.12 29 3/7/2024
7.0.0-preview.4.22229.4 23 3/7/2024
7.0.0-preview.3.22175.4 23 3/7/2024
7.0.0-preview.2.22152.2 27 3/7/2024
7.0.0-preview.1.22076.8 31 3/7/2024
6.0.3 18 1/4/2025
6.0.2 23 10/8/2024
6.0.2-mauipre.1.22102.15 25 3/7/2024
6.0.2-mauipre.1.22054.8 35 3/7/2024
6.0.1 34 3/7/2024
6.0.0 34 3/7/2024
6.0.0-rc.2.21480.5 31 3/7/2024
6.0.0-rc.1.21451.13 25 3/7/2024
6.0.0-preview.7.21377.19 26 3/7/2024
6.0.0-preview.6.21352.12 32 3/7/2024
6.0.0-preview.5.21301.5 27 3/7/2024
6.0.0-preview.4.21253.7 33 3/7/2024
6.0.0-preview.3.21201.4 28 3/7/2024
6.0.0-preview.2.21154.6 29 3/7/2024
6.0.0-preview.1.21102.12 28 3/7/2024
5.0.0 35 4/12/2022
5.0.0-rc.2.20475.5 27 3/7/2024
5.0.0-rc.1.20451.14 29 3/7/2024
5.0.0-preview.8.20407.11 27 4/12/2022
5.0.0-preview.7.20364.11 33 3/7/2024
5.0.0-preview.6.20305.6 29 3/7/2024
5.0.0-preview.5.20278.1 28 3/7/2024
5.0.0-preview.4.20251.6 34 3/7/2024
5.0.0-preview.3.20215.2 27 3/7/2024
5.0.0-preview.2.20160.3 31 3/7/2024
5.0.0-preview.1.20120.4 32 3/7/2024
3.1.32 27 3/7/2024
3.1.31 31 3/7/2024
3.1.30 28 3/7/2024
3.1.29 28 3/7/2024
3.1.28 26 3/7/2024
3.1.27 31 3/7/2024
3.1.26 29 3/7/2024
3.1.25 29 3/7/2024
3.1.24 27 3/7/2024
3.1.23 34 3/7/2024
3.1.22 27 3/7/2024
3.1.21 31 3/7/2024
3.1.20 31 3/7/2024
3.1.19 28 3/7/2024
3.1.18 33 3/7/2024
3.1.17 37 3/7/2024
3.1.16 31 3/7/2024
3.1.15 31 3/7/2024
3.1.14 29 3/7/2024
3.1.13 26 3/7/2024
3.1.12 34 3/7/2024
3.1.11 34 3/7/2024
3.1.10 31 3/7/2024
3.1.9 32 3/7/2024
3.1.8 28 3/7/2024
3.1.7 34 3/7/2024
3.1.6 31 3/7/2024
3.1.5 36 3/7/2024
3.1.4 30 3/7/2024
3.1.3 27 4/12/2022
3.1.2 27 3/7/2024
3.1.1 30 3/7/2024
3.1.0 31 3/7/2024
3.1.0-preview3.19553.2 28 3/7/2024
3.1.0-preview2.19525.4 33 3/7/2024
3.1.0-preview1.19506.1 25 3/7/2024
3.0.3 34 3/7/2024
3.0.2 32 3/7/2024
3.0.1 31 3/7/2024
3.0.0 32 3/7/2024
3.0.0-rc1.19456.10 29 3/7/2024
3.0.0-preview9.19423.4 23 3/7/2024
3.0.0-preview8.19405.4 26 3/7/2024
3.0.0-preview7.19362.4 36 3/7/2024
3.0.0-preview6.19304.6 24 3/7/2024
3.0.0-preview5.19227.9 30 3/7/2024
3.0.0-preview4.19216.2 32 3/7/2024
3.0.0-preview3.19153.1 32 3/7/2024
3.0.0-preview.19074.2 27 3/7/2024
3.0.0-preview.18572.1 25 3/7/2024
2.2.0 29 3/7/2024
2.2.0-preview3-35497 28 3/7/2024
2.2.0-preview2-35157 30 3/7/2024
2.2.0-preview1-35029 29 3/7/2024
2.1.23 30 3/7/2024
2.1.2 34 3/7/2024
2.1.1 27 3/7/2024
2.1.0 29 3/7/2024
2.1.0-rc1-final 29 3/7/2024
2.1.0-preview2-final 30 3/7/2024
2.1.0-preview1-final 32 3/7/2024
2.0.2 27 3/7/2024
2.0.1 34 3/7/2024
2.0.0 30 4/12/2022
2.0.0-preview2-final 27 3/7/2024
2.0.0-preview1-final 27 3/7/2024
1.1.2 32 3/7/2024
1.1.1 36 3/7/2024
1.1.0 31 3/7/2024
1.1.0-preview1-final 27 3/7/2024
1.0.2 29 3/7/2024
1.0.1 30 3/7/2024
1.0.0 30 3/7/2024
1.0.0-rc2-final 34 3/7/2024
1.0.0-rc1-final 28 3/7/2024