# phaser v4.2.1 — Phaser v4.2.1

- Product: phaser (https://whatsnew.fyi/product/phaser)
- Vendor: phaserjs
- Date: 2026-07-09
- Version: v4.2.1
- Original notes: https://github.com/phaserjs/phaser/releases/tag/v4.2.1
- Permalink: https://whatsnew.fyi/product/phaser/releases/v4.2.1

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'.

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- **fixed** — Stencil option stencilInvert now works correctly
- **fixed** — Framebuffers now correctly clear stencil on use by enabling write mask by default
- **fixed** — Remove inline access of Phaser namespace from CombineColorMatrix, ImageLight, and Texture to prevent breaking in ESM build
- **fixed** — Fix ScaleManager not resizing to parent container
- **fixed** — Correct AnimationManager get() return type in documentation
- **fixed** — Tweens with a startDelay set now have their state updated from START_DELAY to ACTIVE

##### Version 4.2.1 - Giedi - 9th July 2026

##### Fixes

- `Stencil` option `stencilInvert` works correctly (an alpha bug prevented it from having the intended effect)
- Framebuffers now correctly clear stencil on use
  - The global stencil settings defaulted to deactivating the stencil write mask, so it couldn't actually run the `clear` process correctly. Write mask is now enabled by default, but is never triggered because default stencil operations keep existing values.
- Remove inline access of Phaser namespace from `CombineColorMatrix`, `ImageLight`, and `Texture`. These would break in the ESM build. Thanks @scobo!
- Fix ScaleManager not resizing to parent container. Fix #7213 (thanks @VijayVPatil13)
- Docs: correct AnimationManager get() return type (thanks @samme)
- Tweens with a startDelay set weren't having their state updated from START_DELAY to ACTIVE. This left them stuck in their initial state, even once the startDelay had elapsed. Fix #7093 (thanks @Bambosh)