Changelog

All notable changes to Lively will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Web demo: a browser edition of the editor now lives at weikezhang.cn/lively (source in the shoal-rat.github.io repository under /lively/).

Initial public release — "Golden Hour."

Pick a Live Photo with the permissionless system PhotosPicker — no photo-library authorization needed to start editing.
Real-time filtered preview driven by a per-frame Core Image video composition. Visual edits flow through a shared VisualStateBox, so filter and adjustment changes appear on the very next frame with zero player rebuilds.
Smart change routing in EditorViewModel: visual edits update the compositor in place, audio-mix edits swap a new AVAudioMix onto the current player item, and only structural edits (trim, soundtrack timing) trigger a debounced composition rebuild.
Motion/Live preview toggle: a looping motion preview with live filters and audio, plus an assembled genuine PHLivePhoto preview you play with press-and-hold. The assembled preview is cached and reused until an edit invalidates it.
Value-typed EditState as the single edit document consumed by both the preview pipeline and the exporter, so what you preview is exactly what exports.
Friendly, human-readable error messages throughout loading, recording, conversion, and export.

12 filter presets: Original, Vivid, Golden, Coastal, Fade, Matte, Dusk, Pop, Sepia, Chrome, Mono, and Noir.
Filter intensity slider that blends the filtered result over the untouched frame.
Per-preset live thumbnails rendered from the photo's own still.
8 fine adjustments layered on top of the preset: exposure, brightness, contrast, saturation, vibrance, warmth, vignette, and sharpness — with one-tap reset.
Monochrome presets (Mono, Noir) automatically disable the color sliders.

Add a soundtrack from a music file, or record a voiceover in the app.
Waveform display with in/out trim handles for the soundtrack.
Timeline start offset to place the clip anywhere along the video.
Soundtrack volume plus independent fade-in and fade-out lengths.
Original-audio volume slider with a separate mute toggle — unmuting restores your previous level.

Trim the Live Photo's video with a filmstrip of evenly spaced frames and a range slider.

Convert any video into a Live Photo: choose a segment range and a key frame for the still, then edit the result with the full toolset — converted videos flow through the exact same pipeline as picked Live Photos.

Save as a genuine Live Photo: a paired still (HEIC preserved when the source is HEIC) and QuickTime movie carrying a matching content identifier and a still-image-time metadata track, so Photos recognizes the pair.
Saving uses add-only photo-library permission — Lively never asks for read access to your library.
Export a shareable MP4 with filters and the audio mix baked in, handed straight to the share sheet.
Export progress reporting with distinct rendering and saving phases.

Flat design language with a coral #FF6B6B accent and amber #FFB84C, ocean #3D7DFF, and mint #2ECC9B companions.
Full light and dark mode support.
Reusable themed components (buttons, cards, sliders, panels) shared across the app.