# MapLibre GL JS v6.0.0-21

- Product: MapLibre GL JS (https://whatsnew.fyi/product/maplibre-gl-js)
- Vendor: MapLibre
- Date: 2026-07-12
- Version: v6.0.0-21
- Original notes: https://github.com/maplibre/maplibre-gl-js/releases/tag/v6.0.0-21
- Permalink: https://whatsnew.fyi/product/maplibre-gl-js/releases/v6.0.0-21
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **changed** — Improve terrain render-to-texture preparation performance by skipping sources that are not rendered to terrain textures
- **added** — Add Map.setMissingStyleImageResolver for resolving missing style images with sync or async callbacks
- **changed** — Stop allowing styleimagemissing listeners to resolve the current image request; use Map.setMissingStyleImageResolver instead
- **added** — Add RasterTileSource#setPremultiplyAlpha(false) to preserve raw RGBA tile values when alpha is used for data instead of opacity

###### ✨ Features and improvements

- Improve terrain render-to-texture preparation performance by skipping sources that are not rendered to terrain textures ([#7863](https://github.com/maplibre/maplibre-gl-js/pull/7863)) (by [@DoFabien](https://github.com/DoFabien))
- Add `Map.setMissingStyleImageResolver` for resolving missing style images with sync or async callbacks ([#7850](https://github.com/maplibre/maplibre-gl-js/pull/7850)) (by [@birkskyum](https://github.com/birkskyum))
- ⚠️ Stop allowing `styleimagemissing` listeners to resolve the current image request; use `Map.setMissingStyleImageResolver` instead ([#7892](https://github.com/maplibre/maplibre-gl-js/issues/7892)) (by [@birkskyum](https://github.com/birkskyum))
- Add `RasterTileSource#setPremultiplyAlpha(false)` to preserve raw RGBA tile values when alpha is used for data instead of opacity ([#7235](https://github.com/maplibre/maplibre-gl-js/pull/7235)) (by [@plantain](https://github.com/plantain)).