What’s New in Underleau

We're excited to launch Underleau v1.2.0 — our biggest update yet! This release unlocks the Zmonic Infinite Vector Canvas Engine for visual brainstorming and an inline Mentions system for attaching annotations, notes, and citations directly inside your documents.

✦ What's New in v1.2.0

1. Zmonic Infinite Canvas (.cudl)

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  GPU-Accelerated Vector Engine: Rust WebAssembly backend (packages/zmonic) with high-DPI HTML5 canvas rendering.
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  Hybrid HTML Overlays: Editable text cards and sticky notes positioned directly over vector nodes using smooth world_to_screen viewport math.
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  Theme-Aware Palette: Infinite canvas background and shapes dynamically react to your active editor theme.

2. Inline @ Mentions & Floating Context Cards

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  Type @ Anywhere: Trigger inline annotation links to cite sources, attach backstory notes, or reference concepts.
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  Hover & Click Cards: Surfaces a contextual inspector card floating directly over your cursor.

3. Slash Command (/) Block Menu

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  Quickly insert headings, blockquotes, code snippets, dividers, and callouts without taking your hands off the keyboard.

Underleau v1.1.0 brings native desktop binaries built with Tauri 2 and direct OS file system access.

✦ Highlights

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  Standalone Desktop Installer: Download signed binaries for macOS and Windows with auto-updates via tauri-plugin-updater.
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  Zero-Latency Vaults: Direct local disk I/O using Rust's standard library (std::fs), offering instant file loading even for mega-vaults.
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  Offline-First Mode: Full writing and editing functionality without requiring an active internet connection.

We are thrilled to officially launch Underleau v1.0.0!

✦ Core Features

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  Proprietary .udl Document Format: High-fidelity Lexical AST document structure supporting rich text formatting, typography overrides, and clean exported Markdown.
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  Harmonious 2-Font System: Outfit for crisp UI controls and Merriweather for editorial headers.
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  Privacy-First Vault Architecture: Your documents stay on your machine with zero cloud tracking.

Underleau v0.9.0 expands workspace flexibility with multi-vault switching and enhanced export controls.

✦ Highlights

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  Multi-Vault Switching: Seamlessly toggle between multiple local document folders directly from the sidebar.
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  Print & PDF Export Engine: Export .udl documents with precise page breaks, margins, and custom serif fonts.
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  Enhanced Performance: 40% reduction in editor AST serialization latency on large documents.

Underleau v0.8.0 introduces XSearch, our high-speed local indexing engine.

✦ What's New

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  Instant Space Search (Cmd/Ctrl + K): Search across all .udl documents in your local vault without delay.
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  Regex & Tag Matching: Query tags, structural headings, and content blocks simultaneously.

The initial alpha release of Underleau introducing local-first document editing.

✦ Core Features

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  Lexical AST Engine: Structured text editing built on Meta's Lexical framework.
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  Web Vaults: File System Access API integration for direct browser access to local folders.