djust 0.4.4rc1

Pre-releaseReleased April 15, 2026

This is a pre-release. djust 0.4.4 has shipped since: read the djust 0.4.4 release notes.

Fixed

VDOM patch path traversal skips regular HTML comments (#729) — The JS patcher was counting all HTML comment nodes during path traversal, but the Rust VDOM parser only preserves  placeholders. This caused every page with HTML comments in dj-root to fail VDOM patching and fall back to full HTML recovery.
Scroll to top on dj-navigate live_redirect — handleLiveRedirect() now scrolls to the top of the page (or to anchor if URL has a hash) after pushState.

Event delegation replaces per-element binding (#730) — bindLiveViewEvents() no longer scans the DOM after every VDOM patch. Instead, one listener per event type is installed on the dj-root element via delegation (e.target.closest('[dj-click]')). This reduces client-side post-patch handling from ~56ms to ~30ms on large pages. Per-element rate limiting preserved via WeakMap.

Per-phase Rust timing in render_with_diff() (#730) — Instrumentation measuring template render, html5ever parse, VDOM diff, and HTML serialization. Exposed to Python via get_render_timing() and propagated to WebSocket response performance metadata.