v10.0.0-beta.18

The media element architecture gets a breaking overhaul in beta.18. DelegateMixin and ProxyMixin are gone, replaced by composable MediaHost base classes: HTMLMediaElementHost, HTMLVideoElementHost, and HTMLAudioElementHost (#1292). If you built a custom media engine on the old mixins, extend one of the host classes instead and register it with CustomMediaElement('video', YourMedia); the custom element discovers host properties at define time, wires up attribute observation automatically, and engines chain lifecycle through super.attach() and super.detach(). The DelegateMixin re-export is removed from @videojs/html and @videojs/react. Mux media elements lose the playbackId and customDomain props in the same change: pass a full src URL instead. A follow-up moves each host’s observed attributes into its subclasses (#1326).

Two documentation features ship alongside. The new @videojs/cli package puts Video.js docs in your terminal: npx @videojs/cli docs how-to/installation --framework react --media hls prints an installation guide with generated code, formatted for handing straight to an LLM or coding agent (#1214). And videojs.org now runs on versioned docs infrastructure: the production site tracks the latest release, while pre-release docs deploy from main to their own site (#1314).

Gesture handling picks up three fixes: taps ignore non-primary pointer buttons (#1329), gestures ignore interactive child elements (#1327), and the double-tap window drops from 300ms to 200ms (#1328).

A batch of site fixes rounds out the release: a FrameworkCase conditional-rendering change is reverted (#1317), images no longer overflow narrow viewports (#1302), several accessibility rough edges are smoothed out (#1330), text links get a gold underline on hover (#1149), and the accessibility guide opens with a clearer intro (#1318, #1331).