.NET 9 - Xcode 26.4 support (26.4.9015)

Note

• Xcode 26.4 is required with this release. Xcode 26.4 requires macOS 26.2+ (Tahoe).
• This release adds Xcode 26.4 build support, no new APIs have been added.

This is a servicing release to the previous .NET 9 release.

Note: these are the base SDKs that add support for the platforms in question, for MAUI (which is built on top of our SDKs), go here instead: https://docs.microsoft.com/en-us/dotnet/maui/.

Versions

This release consists of the following versions:

• iOS: 26.4.9015
• tvOS: 26.4.9015
• macOS: 26.4.9015
• Mac Catalyst: 26.4.9015

Installation

You can use workload set version 9.0.313.1 in order to install these versions of the SDKs.

Please make sure to be using the latest .NET SDK 9.0.313 before issuing the dotnet workload install command below. You can
validate your installed dotnet version using dotnet --version do make sure it shows 9.0.313 or greater before proceeding.

dotnet workload install <workload id(s)> --version 9.0.313.1

Available workload ids

• ios
• tvos
• macos
• maccatalyst
• android (see https://github.com/dotnet/android)
• maui (see https://github.com/dotnet/maui)

Example command installing all listed workloads.

dotnet workload install ios tvos macos maccatalyst maui android --version 9.0.313.1

You can use dotnet workload --info to validate the workload versions installed in your system.

What's Changed

• [release/9.0.1xx] Update build to use Xcode 26.4 no new API bindings by @dalexsoto in #25010

Full Changelog: dotnet-9.0.1xx-xcode26.2.9008...dotnet-9.0.1xx-xcode26.4-9015