# Changelog (Lumen Halo): prompt.md (v1.0.0)

- id: `lumen-changelog` · version 1.0.0 · block · pro (Pro)
- category: Marketing
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/lumen-changelog`
- npm dependencies: none
- registry dependencies: utils, https://beautiful-ui.dev/r/lumen-foundation.json
- docs: https://beautiful-ui.dev/components/lumen-changelog
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

Release notes as a dated feed on a quiet rail. Filter by New, Improved or Fixed and the months with nothing left fold away; each release shows its headline and summary and opens in place to its full list of changes, while the month you're reading stays pinned.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: none beyond React.
- Files: `components/ui/lumen/blocks/changelog.tsx`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `lumen-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `Changelog`, and every exported type.
- CSS: the install merges this item's rules (the registry `css` field) into your global stylesheet, in `@layer components`, and adds the lumen foundation (tokens, keyframes, motion levels) once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--lumen-*` custom properties (`--lumen-accent`, `--lumen-accent-foreground`, `--lumen-accent-text`, `--lumen-bad`, `--lumen-bad-text`, `--lumen-chart-accent`, `--lumen-chart-accent-foreground`, `--lumen-chart-accent-text`, `--lumen-focus`, `--lumen-good`, `--lumen-good-text`, `--lumen-hairline`, `--lumen-ink`, `--lumen-muted-ink`, `--lumen-series-1`, `--lumen-series-2`, `--lumen-series-3`, `--lumen-series-4`, `--lumen-series-5`, `--lumen-series-6`, `--lumen-warn`, `--lumen-warn-text`); this item's CSS also reads `--lumen-font-mono`, `--lumen-font-sans`, `--lumen-radius-k`. Never add Tailwind colour classes inside the component.

```tsx
import { Changelog, type ChangelogEntry } from "@/components/ui/lumen/blocks/changelog";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `Changelog` | `changelog` | The filters, months and releases. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `GlassSoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/glass-sound.json`, import from `@/components/beautiful-ui/glass-sound`); `GlassSoundToggle` is its mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/lumen/blocks/changelog.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- changelog, release notes, what's new, product updates, version history, updates page
- A public changelog or an in-app What's new page

### Not when
- Activity on one record (who changed what): use Activity Timeline
- One announcement: use Announcement Bar

## Mistakes
- Dates are ISO strings ("2026-09-28") and are read as UTC days, so they don't shift a day in other time zones
- Keep ids stable so open releases stay open after a refetch

## Usage

```tsx
import { Changelog, type ChangelogEntry } from "@/components/ui/lumen/blocks/changelog";

const releases: ChangelogEntry[] = [
  {
    id: "r42",
    date: "2026-09-28",
    version: "4.2",
    title: "Saved views for every table",
    summary: "Save a filter and sort, share it with your team and set it as the default.",
    changes: [
      { kind: "new", text: "Saved views on every data table" },
      { kind: "improved", text: "Filters open twice as fast on large tables" },
      { kind: "fixed", text: "Date filters now respect your time zone" },
    ],
    href: "/blog/saved-views",
  },
];

export function WhatsNew() {
  return <Changelog entries={releases} />;
}
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `entries` | `ChangelogEntry[]` |  | ChangelogEntry = { id, date (ISO), title, summary?, version?, changes?: { kind: "new" \| "improved" \| "fixed", text }[], href? }. Any order; shown newest first. |
| `filter / defaultFilter / onFilterChange` | `"all" \| "new" \| "improved" \| "fixed"` | `"all"` | Which kind of change to show, controlled or not. |
| `defaultOpen` | `string[]` | `the newest` | Entries open at first. |
| `locale` | `string` | `"en-US"` | How dates are written. |
| `labels` | `Partial<ChangelogLabels>` |  | Every word, for i18n. |

Full docs: https://beautiful-ui.dev/components/lumen-changelog

## Customising
- Colours: set the `--lumen-*` tokens on `:root`, or on a container with the `lumen-scope` class to retheme one area. Add the `lumen-inherit` class to follow your shadcn palette instead (`--chart-N`, `--destructive`).
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| ← / → | Change the filter |
| Tab | Each release's Show changes and Read more |
| Enter / Space | Open or close a release's changes |

## Performance

- Static markup; for years of releases, pass the latest few months and link to an archive

## Responsive

- One column at any width; the month heading stays pinned while you scroll its releases

## Motion inventory

| Interaction | What moves |
|---|---|
| Open | The list of changes fades and settles in; the release's node lights |
| Filter | Months with nothing left fold away |

## Accessibility contract (preserve when editing)
- Filters are a radio group (arrow keys move and choose); months and releases are labelled sections and articles with real dates (time datetime)
- Show changes is a button with aria-expanded tied to the list it opens; closed lists are hidden from everyone, not just visually
- Change kinds are written as words (New, Improved, Fixed), never colour alone; Read more names its release for screen readers

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/lumen-changelog
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

The lumen foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/lumen-foundation.json.