Microsoft.Extensions.Caching.Memory 9.0.15

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.AspNetCore.Mvc.Razor.Host
ASP.NET Core MVC design time hosting infrastructure for the Razor view engine.
 192
Microsoft.AspNetCore.Mvc.TagHelpers
ASP.NET Core MVC default tag helpers. Contains tag helpers for anchor tags, HTML input elements, caching, scripts, links (for CSS), and more. This package was built from the source code at https://github.com/aspnet/Mvc/tree/a6199bbfbab05583f987bae322fb04566841aaea
 183
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.
 164
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 162
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.
 161
Microsoft.AspNetCore.Mvc.TagHelpers
ASP.NET Core MVC default tag helpers. Contains tag helpers for anchor tags, HTML input elements, caching, scripts, links (for CSS), and more.
 161
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. This package was built from the source code at https://github.com/aspnet/Mvc/tree/a6199bbfbab05583f987bae322fb04566841aaea
 159
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 157
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.
 155
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 154
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 153
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 152
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.
 152
Microsoft.AspNetCore.Mvc.Razor.Host
ASP.NET Core MVC design time hosting infrastructure for the Razor view engine.
 152
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
 151
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 151
Microsoft.AspNetCore.Mvc.TagHelpers
ASP.NET Core MVC default tag helpers. Contains tag helpers for anchor tags, HTML input elements, caching, scripts, links (for CSS), and more.
 150
Microsoft.AspNetCore.Mvc.Razor
ASP.NET Core MVC Razor view engine for CSHTML files.
 148
Microsoft.AspNetCore.Mvc.Razor.Host
ASP.NET Core MVC design time hosting infrastructure for the Razor view engine.
 148

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

.NET Framework 4.6.2

.NET 8.0

.NET 9.0

.NET Standard 2.0

Version Downloads Last updated
11.0.0-preview.3.26207.106 1 5/3/2026
11.0.0-preview.2.26159.112 4 3/12/2026
11.0.0-preview.1.26104.118 7 2/11/2026
10.0.7 1 5/3/2026
10.0.6 0 4/14/2026
10.0.5 5 3/16/2026
10.0.4 5 3/12/2026
10.0.3 11 2/11/2026
10.0.2 11 1/13/2026
10.0.1 22 12/9/2025
10.0.0 46 11/13/2025
10.0.0-rc.2.25502.107 48 10/20/2025
10.0.0-rc.1.25451.107 59 9/15/2025
10.0.0-preview.7.25380.108 59 8/18/2025
10.0.0-preview.6.25358.103 63 7/18/2025
10.0.0-preview.5.25277.114 83 6/8/2025
10.0.0-preview.4.25258.110 70 5/15/2025
10.0.0-preview.3.25171.5 100 4/11/2025
10.0.0-preview.2.25163.2 81 3/18/2025
10.0.0-preview.1.25080.5 93 2/26/2025
9.0.15 1 5/3/2026
9.0.14 4 3/12/2026
9.0.13 6 2/11/2026
9.0.12 12 1/13/2026
9.0.11 44 11/13/2025
9.0.10 44 10/17/2025
9.0.9 59 9/11/2025
9.0.8 55 8/6/2025
9.0.7 58 7/11/2025
9.0.6 59 6/12/2025
9.0.5 84 5/16/2025
9.0.4 77 4/8/2025
9.0.3 77 3/17/2025
9.0.2 89 2/18/2025
9.0.1 104 1/21/2025
9.0.0 90 11/16/2024
9.0.0-rc.2.24473.5 87 10/13/2024
9.0.0-rc.1.24431.7 93 9/11/2024
9.0.0-preview.7.24405.7 114 8/13/2024
9.0.0-preview.6.24327.7 114 7/10/2024
9.0.0-preview.5.24306.7 97 6/14/2024
9.0.0-preview.4.24266.19 95 6/1/2024
9.0.0-preview.3.24172.9 97 4/17/2024
9.0.0-preview.2.24128.5 89 3/22/2024
9.0.0-preview.1.24080.9 102 2/23/2024
8.0.1 99 10/18/2024
8.0.0 119 11/16/2023
8.0.0-rc.2.23479.6 109 11/6/2023
8.0.0-rc.1.23419.4 103 9/17/2023
8.0.0-preview.7.23375.6 122 8/9/2023
8.0.0-preview.6.23329.7 115 7/31/2023
8.0.0-preview.5.23280.8 108 7/31/2023
8.0.0-preview.4.23259.5 101 5/20/2023
8.0.0-preview.3.23174.8 110 5/12/2023
8.0.0-preview.2.23128.3 109 5/28/2023
8.0.0-preview.1.23110.8 99 3/14/2023
7.0.0 112 12/3/2022
7.0.0-rc.2.22472.3 114 10/24/2022
7.0.0-rc.1.22426.10 104 9/16/2022
7.0.0-preview.7.22375.6 109 11/15/2022
7.0.0-preview.6.22324.4 100 9/28/2022
7.0.0-preview.5.22301.12 120 6/27/2022
7.0.0-preview.4.22229.4 112 6/29/2022
7.0.0-preview.3.22175.4 122 6/29/2022
7.0.0-preview.2.22152.2 122 6/29/2022
7.0.0-preview.1.22076.8 119 6/29/2022
6.0.3 99 11/16/2024
6.0.2 90 10/13/2024
6.0.2-mauipre.1.22102.15 110 6/29/2022
6.0.2-mauipre.1.22054.8 114 6/29/2022
6.0.1 108 6/29/2022
6.0.0 103 6/29/2022
6.0.0-rc.2.21480.5 106 6/29/2022
6.0.0-rc.1.21451.13 116 6/29/2022
6.0.0-preview.7.21377.19 159 6/29/2022
6.0.0-preview.6.21352.12 106 6/29/2022
6.0.0-preview.5.21301.5 112 6/29/2022
6.0.0-preview.4.21253.7 123 6/29/2022
6.0.0-preview.3.21201.4 116 6/29/2022
6.0.0-preview.2.21154.6 118 6/29/2022
6.0.0-preview.1.21102.12 112 6/29/2022
5.0.0 120 6/29/2022
5.0.0-rc.2.20475.5 112 6/29/2022
5.0.0-rc.1.20451.14 128 6/29/2022
5.0.0-preview.8.20407.11 108 6/29/2022
5.0.0-preview.7.20364.11 112 6/29/2022
5.0.0-preview.6.20305.6 119 6/29/2022
5.0.0-preview.5.20278.1 117 6/29/2022
5.0.0-preview.4.20251.6 114 6/29/2022
5.0.0-preview.3.20215.2 105 6/29/2022
5.0.0-preview.2.20160.3 135 6/29/2022
5.0.0-preview.1.20120.4 105 6/29/2022
3.1.32 124 1/11/2023
3.1.31 127 12/3/2022
3.1.30 126 10/15/2022
3.1.29 103 2/20/2023
3.1.28 143 9/11/2022
3.1.27 124 10/18/2022
3.1.26 106 6/29/2022
3.1.25 116 6/29/2022
3.1.24 132 6/29/2022
3.1.23 118 6/29/2022
3.1.22 114 6/29/2022
3.1.21 123 6/29/2022
3.1.20 96 6/29/2022
3.1.19 109 6/29/2022
3.1.18 108 6/29/2022
3.1.17 139 6/29/2022
3.1.16 105 6/29/2022
3.1.15 108 6/29/2022
3.1.14 117 6/29/2022
3.1.13 111 6/29/2022
3.1.12 109 6/29/2022
3.1.11 124 6/29/2022
3.1.10 112 6/29/2022
3.1.9 125 6/29/2022
3.1.8 112 6/29/2022
3.1.7 112 6/29/2022
3.1.6 112 6/29/2022
3.1.5 108 6/29/2022
3.1.4 110 6/29/2022
3.1.3 108 6/29/2022
3.1.2 106 6/29/2022
3.1.1 119 6/29/2022
3.1.0 107 6/29/2022
3.1.0-preview3.19553.2 99 6/29/2022
3.1.0-preview2.19525.4 109 6/29/2022
3.1.0-preview1.19506.1 116 6/29/2022
3.0.3 108 6/29/2022
3.0.2 103 6/29/2022
3.0.1 123 6/29/2022
3.0.0 117 6/29/2022
3.0.0-rc1.19456.10 114 6/29/2022
3.0.0-preview9.19423.4 122 6/29/2022
3.0.0-preview8.19405.4 118 6/29/2022
3.0.0-preview7.19362.4 129 6/29/2022
3.0.0-preview6.19304.6 117 6/29/2022
3.0.0-preview5.19227.9 114 6/29/2022
3.0.0-preview4.19216.2 107 6/29/2022
3.0.0-preview3.19153.1 114 6/29/2022
3.0.0-preview.19074.2 112 6/29/2022
3.0.0-preview.18572.1 113 6/29/2022
2.2.0 112 6/29/2022
2.2.0-preview3-35497 119 6/29/2022
2.2.0-preview2-35157 127 6/29/2022
2.2.0-preview1-35029 111 6/29/2022
2.1.23 107 6/29/2022
2.1.2 107 6/29/2022
2.1.1 125 6/29/2022
2.1.0 126 6/29/2022
2.1.0-rc1-final 115 6/29/2022
2.1.0-preview2-final 122 6/29/2022
2.1.0-preview1-final 116 6/29/2022
2.0.2 105 6/29/2022
2.0.1 115 6/29/2022
2.0.0 111 6/29/2022
2.0.0-preview2-final 109 6/29/2022
2.0.0-preview1-final 103 6/29/2022
1.1.2 108 6/29/2022
1.1.1 117 6/29/2022
1.1.0 125 6/29/2022
1.1.0-preview1-final 107 6/29/2022
1.0.2 112 6/29/2022
1.0.1 129 6/29/2022
1.0.0 107 6/29/2022
1.0.0-rc2-final 116 6/29/2022
1.0.0-rc1-final 128 6/29/2022