Releases

July 2026: Initial release

The initial release is the complete public cut of Navius: the headless primitive brain, the JavaScript engine, the copy-paste registry path, the standalone motion package, Message Scroller, and the parity primitives for date, color, file, token, and structure families.

The headless brain

• The full primitive set, behavior-complete and unstyled: overlays, menus, form controls, fields, selection primitives, utilities, and Navius extras.
• The JavaScript engine: focus trap, scroll lock, anchored positioning without Floating UI, dismissable layers, roving focus, body teleport, size observers, constraint validation, carousel, sheet swipe, and more.
• Controlled and uncontrolled state across stateful primitives, plus the discrete data-* state contract for styling and animation.
• The navius CLI and JSON registry for copy-paste distribution through the sibling zits/helm repository.
• Verified in a real browser with the Playwright suite and by package/unit tests for the motion engine.

Message Scroller

• A managed scroll region for conversational transcripts (Message Scroller): anchored turns, live-edge follow that releases the moment the reader scrolls, and prepend-safe history keyed on stable message ids. The scroll hot path runs entirely in the engine, so transcript rows never rerender on scroll or stream.

Motion engine (M0 to M3)

• A standalone Blazor motion engine: a closed-form C# spring solver bakes physics into CSS linear() easings that animate on the compositor, with zero per-frame interop. It holds no reference to the primitives package.
• The core toolkit: springs, presence, gestures, and the micro-interaction pack.
• Auto-Animate: one attribute FLIPs every add, remove, and reorder of a list's children, and the FLIP can ride a baked spring.
• The orchestration wave: staggered sequences, in-view reveals, and a spring-driven selection indicator.
• Height Animation: an overflow-clipped container that tweens its height on a collapse, an expand, or a content-size change.

Parity primitives

• Date and time family: segmented spinbutton editors Date Input and Time Input, plus the Time Picker and Date Range Picker that pair them with a popover.
• Token and value inputs: the caret-stable Masked Input and Currency Input, the chip-based Tag Input, and the star-radiogroup Rating.
• Structure and interaction: the HSVA Color Picker, a drag-and-drop File Upload, Sortable with pointer drag plus an APG grab-and-move keyboard model, and Tree with the full WAI-APG TreeView.
• A Keyboard Shortcuts service: an injectable global chord registry with synchronous preventDefault, cross-platform mod chords, and scope stacking.