[Feature Request] Support graceful degradation for macOS versions below 26.0

[kaitotokyo]

Description

The current implementation of flutter_local_ai requires macOS 26.0 as the minimum deployment target, which prevents the plugin from being used in apps that need to support earlier macOS versions (e.g., macOS 15.0 Sequoia).

Current Behavior

When attempting to build a Flutter macOS app that includes flutter_local_ai, the following compilation error occurs:

/Users/kaito/xxxxxxxx/macos/Flutter/GeneratedPluginRegistrant.swift:14:8: error: compiling for macOS 15.0, but module 'flutter_local_ai' has a minimum deployment target of macOS 26.0

This is a compile-time hard requirement that forces developers to either:

Abandon support for macOS 15.x and earlier users

Remove the plugin entirely from their project

Expected Behavior

It would be highly beneficial if the plugin could support graceful degradation for older macOS versions:

On macOS 26.0+: Full functionality with local AI inference using Apple Foundation Models

On macOS 15.x and below: Plugin should compile successfully but return a not support

[kekko7072]

Hi @kaitotokyo thanks for feature request, will do it for sure with next release coming out in some days.

Feel free also to suggest new features and also how you use this plug in will help with the roadmap development.

[kekko7072]

you can find version 0.0.4 available, let me know.

[kaitotokyo]

Thanks for the quick fix—this resolved the issue on my side.
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One additional note: the Android minSdkVersion was bumped to 26.
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It’s not a big problem for this project, but I noticed other libraries like google_ml_kit: ^0.20.0 still support a minimum of 21, which aligns with the minimum versions supported by Flutter’s official guidance.
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This feels like the same kind of compatibility case as the macOS deployment-target discussion (compile-time requirement vs. runtime “unsupported” behavior), so it might be worth considering whether the Android minimum can be kept lower with a graceful “not supported” fallback when running on older devices.