# .NET Standard 2.0

[Overview](../versions.md) | [Previous](netstandard1.6.md) | [Next](netstandard2.1.md)

* [APIs](netstandard2.0_ref.md)
* [Diff with 1.6](netstandard2.0_diff.md)
* [Reference Documentation](https://docs.microsoft.com/dotnet/api/?view=netstandard-2.0)

## Platform Support

* .NET Core 2.0
* .NET Framework 4.6.1
* Mono 5.4
* Xamarin.iOS 10.14
* Xamarin.Mac 3.8
* Xamarin.Android 8.0
* Universal Windows Platform 10.0.16299

## What's new?

| Namespace                                         | #APIs |
|:--------------------------------------------------|------:|
| Microsoft.Win32.SafeHandles                       |    22 |
| System                                            | 1,366 |
| System.CodeDom.Compiler                           |    46 |
| System.Collections                                |   335 |
| System.Collections.Generic                        |    23 |
| System.Collections.ObjectModel                    |     1 |
| System.Collections.Specialized                    |   281 |
| System.ComponentModel                             | 1,843 |
| System.ComponentModel.Design                      |   565 |
| System.ComponentModel.Design.Serialization        |   155 |
| System.Configuration.Assemblies                   |    13 |
| System.Data                                       | 1,587 |
| System.Data.Common                                |   907 |
| System.Data.SqlTypes                              |   971 |
| System.Diagnostics                                |   826 |
| System.Diagnostics.CodeAnalysis                   |     2 |
| System.Diagnostics.Contracts                      |    89 |
| System.Diagnostics.SymbolStore                    |   146 |
| System.Diagnostics.Tracing                        |     2 |
| System.Drawing                                    |   520 |
| System.Dynamic                                    |   226 |
| System.Globalization                              |   217 |
| System.IO                                         |   309 |
| System.IO.Compression                             |     8 |
| System.IO.IsolatedStorage                         |   134 |
| System.IO.MemoryMappedFiles                       |    66 |
| System.IO.Pipes                                   |   125 |
| System.Linq                                       |   366 |
| System.Linq.Expressions                           |    50 |
| System.Net                                        | 1,360 |
| System.Net.Cache                                  |    52 |
| System.Net.Http.Headers                           |    20 |
| System.Net.Mail                                   |   289 |
| System.Net.Mime                                   |    75 |
| System.Net.NetworkInformation                     |   696 |
| System.Net.Security                               |   194 |
| System.Net.Sockets                                |   168 |
| System.Net.WebSockets                             |   188 |
| System.Numerics                                   |     1 |
| System.Reflection                                 |   403 |
| System.Reflection.Emit                            |     3 |
| System.Resources                                  |    91 |
| System.Runtime                                    |    12 |
| System.Runtime.CompilerServices                   |   190 |
| System.Runtime.ConstrainedExecution               |    22 |
| System.Runtime.ExceptionServices                  |     6 |
| System.Runtime.InteropServices                    |   106 |
| System.Runtime.InteropServices.ComTypes           |    15 |
| System.Runtime.Serialization                      |   486 |
| System.Runtime.Serialization.Formatters           |    13 |
| System.Runtime.Serialization.Formatters.Binary    |    23 |
| System.Runtime.Serialization.Json                 |    80 |
| System.Runtime.Versioning                         |    33 |
| System.Security                                   |   124 |
| System.Security.Authentication                    |    11 |
| System.Security.Authentication.ExtendedProtection |    36 |
| System.Security.Claims                            |   206 |
| System.Security.Cryptography                      |   575 |
| System.Security.Cryptography.X509Certificates     |    76 |
| System.Security.Permissions                       |    88 |
| System.Security.Principal                         |    41 |
| System.Text                                       |    83 |
| System.Text.RegularExpressions                    |    31 |
| System.Threading                                  |   330 |
| System.Threading.Tasks                            |    66 |
| System.Timers                                     |    39 |
| System.Transactions                               |   223 |
| System.Web                                        |    32 |
| System.Xml                                        | 1,362 |
| System.Xml.Linq                                   |     7 |
| System.Xml.Resolvers                              |    25 |
| System.Xml.Schema                                 |   967 |
| System.Xml.Serialization                          |   943 |
| System.Xml.XPath                                  |   261 |
| System.Xml.Xsl                                    |   140 |