build(deps): bump github.com/argmaxinc/whisperkit from 0.17.0 to 0.18.0 in /app/MeetingTranscriber

[dependabot]

Bumps github.com/argmaxinc/whisperkit from 0.17.0 to 0.18.0.

Release notes

Sourced from github.com/argmaxinc/whisperkit's releases.

v0.18.0

Highlights

This release refactors SpeakerKit around a new shared ModelManager base class, unifying the download → load → unload lifecycle across kits and simplifying the SpeakerKit public API.

The top-level entry point is now just:

let speakerKit = try await SpeakerKit()

No config object required for the default case.

Architecture Changes

ModelManager (new, ArgmaxCore)

A reusable base class for managing the full model lifecycle that all kits can now inherit from. It handles state transitions, error recovery, and concurrent load coalescing via an internal LoadModelsCoordinator — concurrent callers to ensureModelsLoaded() coalesce onto a single in-flight task rather than racing.

Backend-specific I/O is delegated to a new ModelLoader protocol:

public protocol ModelLoader: AnyObject, Sendable {
    var modelFolder: String? { get }
    func resolveModels(downloader: ModelDownloader, progressCallback: ((Progress) -> Void)?) async throws -> String
    func load(from modelPath: String, prewarm: Bool) async throws
    func unload() async
}

SpeakerKitDiarizer (replaces SpeakerKitModelManager)

SpeakerKitModelManager has been replaced by SpeakerKitDiarizer, which inherits from ModelManager and conforms to the new Diarizer protocol. Create it via the static factory:

let diarizer = SpeakerKitDiarizer.pyannote(config: config)

SpeakerKitModelManager is still available as a deprecated typealias pointing to SpeakerKitDiarizer so existing code compiles with a warning rather than breaking.

Diarizer protocol (new)

A clean protocol for plugging in diarization backends:

public protocol Diarizer: Sendable {
    var modelState: ModelState { get }
    func downloadModels() async throws
    func loadModels() async throws
    func unloadModels() async
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Commits

• e2adabb Release v0.18.0
• 67f4530 Refactor SpeakerKit around a reusable ModelManager base class (#452)
• 3817d28 Fix SpeakerKit tests on iOS 17 (#444)
• See full diff in compare view

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