package does not seem to compile in Xcode 26

[yqiang]

I'm updating my app for iOS 26 and have experiment-ios-client version 1.18.2 as a dependency:

.package(url: "https://github.com/amplitude/experiment-ios-client", from: "1.0.0"),

When trying to compile the target, I get a few errors about it not satisfying various concurrency rules:

Static property 'instancesLock' is not concurrency-safe because it is nonisolated global shared mutable state

Static property 'fallbackVariant' is not concurrency-safe because non-'Sendable' type 'Variant' may have shared mutable state
...

Xcode 26.0 Beta 6
Sequoia 15.6.1

[yqiang]

Interestingly enough, if I pin the dependency to a previous version, things compile again:

.package(url: "https://github.com/amplitude/experiment-ios-client", exact: .init(stringLiteral: "1.18.1")),

[FelixHerrmann]

It fails because of the introduced Package@swift-6.2.swift which tries to compile the Experiment target in Swift 6 language mode; I just opened a PR to address this.

[github-actions]

🎉 This issue has been resolved in version 1.18.3 🎉

The release is available on:

• GitHub release
• v1.18.3

Your semantic-release bot 📦🚀