v3.21.0

Features and improvements ✨

• Introduce the TileProvider API, a mechanism for extending GL JS with custom vector tile providers.
• Add first-class support for PMTiles via the new TileProvider API and an official plugin (mapbox-gl-pmtiles-provider.js) that loads on demand.
• Add experimental line-blend-mode property for rendering lines using additive or multiply blending.
• Slightly improve overall map loading times.
• Improve symbol layer rendering performance (by adopting Uniform Buffer Objects for data-driven properties).
• Improve indoor maps loading performance.

Bug fixes 🐞

• Fix dragging gesture not working on the compass control.
• Various fixes and improvements for the Appearances API.
• Fix an edge case when combining custom icons with images included in the style's sprite.
• Fix setWorldview not updating layout properties correctly.
• Fix an issue when rendering stacked underground 3D roads.
• Fix line dashes with non-integer total array lengths.
• Fix various rendering issues when using *-cutoff-fade-range properties.
• Fix clip layer not clipping fill-extrusion ambient occlusion.

Breaking changes ⚠️

• Removed mapbox-gl-unminified.js bundle in the distribution — please switch to either mapbox-gl.js, mapbox-gl-dev.js, or the new esm-min/mapbox-gl.js ESM bundle.
• Removed spriteFormat Map option — now Mapbox styles will always use vector icons, while non-Mapbox styles will continue using classic raster sprites.