--- title: Package Traits in Xcode | daily.dev description: Xcode 26.4 adds support for SwiftPM package traits, a feature introduced in SwiftPM 6.1. Traits let package authors expose configurable options to users,... canonical: https://daily.dev/posts/package-traits-in-xcode-fx0n1fdve twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Package Traits in Xcode | daily.dev og:description: Xcode 26.4 adds support for SwiftPM package traits, a feature introduced in SwiftPM 6.1. Traits let package authors expose configurable options to users,... og:url: https://daily.dev/posts/package-traits-in-xcode-fx0n1fdve og:image: https://api.daily.dev/og/posts/Fx0N1FdVE.png og:image:alt: Package Traits in Xcode og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Package Traits in Xcode **[Matt Massicotte](https://daily.dev/sources/massicotte)** · 4 min read · 0 upvotes · 0 comments ## Summary Xcode 26.4 adds support for SwiftPM package traits, a feature introduced in SwiftPM 6.1. Traits let package authors expose configurable options to users, enabling conditional compilation and optional dependencies via `#if` directives. A key use case is making heavy dependencies (like swift-collections) opt-in rather than mandatory for all users, addressing a common complaint about transitive dependencies in Swift packages. The author sees this as a significant and long-awaited improvement to the Swift package ecosystem. ## Full article daily.dev links to this article rather than hosting it. 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