11.19.0-rc.1 | Mapbox Maps SDK for iOS

Features ✨ and improvements 🏁

• Introduce new LineLayer.lineElevationGroundScale property to scale elevated lines with terrain exaggeration.
• Promote elevated lines properties to stable: LineLayer.lineZOffset and LineLayer.lineElevationReference.
• Introduce experimental SymbolScaleBehavior API to automatically scale map symbols (icons and text) based on system accessibility text size settings. Set MapboxMap.symbolScaleBehavior property to configure: .system (automatic scaling), .system(mapping:) (custom mapping function), or .fixed(scaleFactor:) (fixed scale, default is 1.0). Valid scale factor range is [0.8, 2.0]. Automatic scaling is opt-in; symbols default to fixed 1.0x scale.
• Add ModelSource support with Model, ModelMaterialOverride, and ModelNodeOverride to enable interactive 3D models. Material overrides allow customization of color, emissive strength, opacity, and color mix intensity. Node overrides enable control of model part transformations such as rotating doors, landing gear, or propellers. Models can be updated via source-driven approach (modifying ModelSource.models directly) or feature-state driven approach (using expressions with feature state for dynamic control). For implementation examples, see Interactive3DModelFeatureStateExample (SwiftUI), Interactive3DModelSourceExample (UIKit), and Animated3DModelSourceExample (SwiftUI).

Bug fixes 🐞

• Fix elevated line bevel join artifacts at sharp corners.
• Fix disappearing icons after reducing memory use
• Fix View Annotations placement on interpolated geometry points

Dependencies

• Update MapboxCommon to 24.19.0-rc.1.
• Update MapboxCoreMaps to 11.19.0-rc.1.

Dependency requirements:

• Compatible version of Xcode: 16.2