| ⇢ | A | TransparentStrategy added | |
| ⇢ | A | WebPStrategy added |
| ⇢ | A | WebPStrategy::save() added | |
| ⇢ | A | WebPStrategy::render() added | |
| ⇢ | A | WebPStrategy::getContentType() added | |
| ⇢ | A | TransparentStrategy::handleTransparency() added | |
| ⇢ | A | WebPStrategy::create() added | |
| A | ↛ | PngStrategy::handleTransparency() removed |