April 15, 2026 · IWV Digital Solutions · 8 min read

NotesXML Beta 5.51.0 — Platform Quality & Capability Summary

IWV Digital Solutions LLC | April 15, 2026

Overview

NotesXML Beta 5.51.0 represents a mature, feature-complete note-taking platform for Windows and Android, built around privacy, local AI, and zero-compromise data ownership. This document summarizes the verified capabilities of the current release, backed by automated test results and a clean production startup log.

Test Suite Results

The full automated test suite — 15 independent scripts covering every major subsystem — executed on April 15, 2026 against NotesXML Beta 5.51.0 on a Ryzen 7 7800X3D / Windows 11 host.

Result	Count
Tests Passed	1,264
Tests Failed	0
Tests Skipped (platform-specific)	90
Total Tests	1,417
Total Duration	31.4 seconds

All 15 scripts returned PASS. Skipped tests are exclusively Android-platform tests that are not applicable to the Windows host environment (e.g., Android file APIs, Android TTS bridge) — not failures.

Verified Subsystems

Note Types (15 Types Verified)

NotesXML supports 15 distinct note types, each validated for creation, type recognition, and JSON content integrity:

Text · Rich Text · Markdown · List · Table · Task · Event · Contact · Link · Bookmark · Image · Audio · Drawing · PDF · GPS

Markdown Rendering (67 Tests)

Full GFM and Pandoc-extended Markdown rendering is verified, including:
- All heading levels (ATX and Setext)
- Inline formatting: bold, italic, strikethrough, inline code
- Tables with column alignment and inline formatting in cells
- Fenced and indented code blocks
- Task lists, definition lists, footnotes, and example lists
- GitHub Alerts (NOTE, WARNING, TIP), emoji shortcodes
- Inline and display math ( $...$ , $$...$$, $...$, \[...\])
- Smart typography: em dash, en dash, ellipsis, smart quotes
- Pandoc extensions: superscript, subscript, small caps, fenced divs, line blocks, grid tables
- YAML frontmatter stripping, backslash escapes, mixed GFM + Pandoc content

Rich Text (51 Tests)

Full rich-text editor capabilities verified: inline formatting, heading hierarchy, paragraph and line-break handling, unordered/ordered/nested lists, text alignment (left/center/right/justify), foreground and background color, font family and size, links, blockquotes, horizontal rules, tables with colspan, HTML entities, Unicode, and emoji.

Math Rendering (32 Tests)

All four delimiter styles verified. Edge cases covered: currency symbols not mis-parsed as math, escaped dollar signs, math combined with smart typography, malformed LaTeX fallback rendering, and code blocks protecting math content from rendering.

License & Feature Gating (114 Tests)

The complete commercial licensing system is verified:
- 5-state machine: checking → trial → free → professional → expired
- Feature gate pipeline: kill-switch, tier evaluation, state-based unlock
- 34 premium features defined and gated correctly
- 4 free themes always available; premium themes gated to Professional
- AI model catalog, AI Chat, cloud sync, transcription, and background audio correctly Professional-only
- Free tier AI actions (title generation, polish, summarize) correctly ungated
- Ad-free compliance: no AD_SUPPORTED state, no rewarded ad infrastructure, no ad unit IDs anywhere in the build

AI Features (Verified)

12-model catalog spanning multiple hardware tiers (Ultra-Light through Desktop Pro)
Context size: 8,192 tokens on desktop (CR-2026-352)
PromptManager.getTemperature() / setTemperature() per-action temperature control
Vision-capable model present and verified in catalog
Free tier: Gemma 3 1B available without license; catalog expansion gated to Professional

Voice Input & TTS (63 Tests)

Complete Whisper-based ASR and Piper TTS interface verified:
- VoiceInput and TtsEngine globals fully initialized
- All ASR IPC channels present: asrAvailable, asrModelInstalled, asrTranscribeFile, asrTranscribeData, asrStartRecording, asrStopAndTranscribe, asrCancel, asrTranscribeBase64Wav (8 channels, no duplicates)
- All TTS IPC channels present: ttsAvailable, ttsSpeak, ttsStop, ttsVoices (4 channels, no duplicates)
- Rate and pitch clamping verified (0.5–2.0 range)
- Engine type and availability correctly reported at startup

File Operations, Search & Encryption

Full file pipeline verified: save, open, filename sanitization, auto-save, backup, recent documents, directory handles
Universal search, find/replace, and directory search all present and functional
AES-based local encryption with PBKDF2 key derivation verified; Web Crypto API availability confirmed

Cloud Sync (12 Tests)

Google Drive and Dropbox providers loaded and initialized
Four sync modes verified: bidirectional, vault, reference, archive
Zero-knowledge filename encryption and sync content encryption modules active
Conflict filename format, remote path construction, email/path privacy redaction all verified

Calendar & Productivity (14 Tests)

Task, event, and contact note types structurally verified
Recurring events (daily, weekly, n-weekly, monthly, yearly), event overrides, multi-day closures
Overdue task detection and ISO date parsing verified

Import / Export (18 Tests)

Export: Markdown, HTML, PDF (pdf-lib), NXL (native format)
Import: ENEX (Evernote), Markdown, CSV, HTML, Backpack XML
NXL round-trip (create → serialize → parse) verified
XSS sanitization on HTML import confirmed; script tags stripped

Startup Log Analysis

A clean production startup log was captured on the same hardware on April 15, 2026. Key findings:

Zero errors on startup
All 320 Electron IPC methods available via secure contextBridge
All sync, AI, calendar, encryption, and PDF modules loaded and confirmed ready
Licensing system initialized correctly
Minor expected warnings only: spell-check language pack not pre-installed (user-installable), FFmpeg not bundled in this build (optional, affects audio files >3MB only), CalendarManager deferred load (resolved during initialization) — none affecting product functionality

Platform

Attribute	Value
Current Version	Beta 5.51.0
Electron	28.3.3
Chromium	120.0.6099.291
Target Platforms	Windows (Microsoft Store + direct), Android (Google Play)
License Tiers	Free (perpetual) + Professional
Advertising	None — ad-free by design, permanently
AI Inference	Local / on-device only — no data leaves the device

About IWV Digital Solutions LLC

IWV Digital Solutions LLC is an independent software company focused on privacy-first, locally-executed productivity tools. NotesXML is our flagship product. All AI processing runs entirely on your device — your notes and data are never transmitted to any server.

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