Release Notes:

Refined METAR and TAF interpretation logic for more accurate highlighting and fewer false positives.

Refactored NOTAM coordinate group detection to improve “one‑click copy” behavior, including better boundary handling when multiple COORD markers appear close together.

General stability improvements to NOTAM parsing and highlighting performance.

🆕 NEW FEATURES:

METAR/TAF Enhanced Detection: Added support for critical weather patterns including low visibility (<5000m), convective clouds (CB/TCU), vertical visibility (VV), RVR, wind shear, sector visibility, and gust detection

Single-Pass Multi-Regex Engine: Refactored plugin to process all aviation weather patterns in one pass per TextNode, eliminating race conditions and ensuring FEW030TCU, BKN020CB, and similar tokens are always highlighted regardless of surrounding wind/visibility data

Improved Context Validation: Enhanced MetarTafValidator with stricter rules to avoid false positives on timestamps, dates, and non-meteorological numeric content

I18N Expansion: Added tooltip translations for critical weather phenomena (CB, TCU, VV) in 4 languages (en-US, pt-BR, es, fr)

DOM Efficiency: Unified highlight-inside-highlight prevention using closest('.scg-highlight') across all layers

🐛 BUG FIXES:

Fixed intermittent highlighting of page timestamps (e.g., "Last updated: 2112 UTC") by adding hard-skip for #update_time and similar header elements

Resolved issue where convective cloud tokens (FEW030TCU) were skipped when wind-threshold matched first in the same TextNode

Corrected false rejection of low-visibility values in fragmented DOM structures

⚡ PERFORMANCE:

Reduced multiple DOM replacements per TextNode from 6-7 passes to single consolidated pass

Priority-based overlap resolution ensures most critical pattern always wins

🚀 Version 0.9.20 - Bug Fixes & Stability

🐛 Bug Fixes:
• Fixed floating widget not appearing on whitelisted aviation domains
• Resolved widget initialization issues on intranet systems
• Fixed false blacklist triggers on trusted government aviation sites
• Corrected state persistence issues during page navigation

🔧 Improvements:
• Better domain verification for official aviation websites
• Improved security validation for intranet environments (HTTP/HTTPS)
• Enhanced synchronization between security states and UI
• Optimized hostname extraction and validator resolution

🛡️ Security:
• Strengthened protection against domain spoofing attacks
• Better detection of unauthorized subdomains
• Improved HTTPS enforcement for government sites

📋 Compliance:
• Maintains ICAO Type A EFB compliance
• All processing remains local - no data transmission
• No login or payment required

Test it: https://www.airnav.com/airport/KJFK
The extension will automatically highlight NOTAM, METAR, and TAF content.

🆕 NEW FEATURES:
• Added 2,850+ mapped aviation patterns (ICAO codes + Q-Codes)
• Enhanced Q-Code recognition system with 1,000+ standardized NOTAM codes
• Improved blacklist detection to hide floating widget on excluded sites
• New internationalization support for QIIAS, QPDAO, QPDCH, QOLAS, QXXAS, QPIAO, QMNLC and others
• Added multilingual tooltips (en-US, pt-BR, es, fr) for critical Q-Codes

🔧 IMPROVEMENTS:
• Optimized floating widget visibility logic to prevent flickering on blacklisted sites
• Enhanced security validation for ICAO pattern detection
• Refined state management for seamless blacklist/whitelist transitions
• Improved performance of real-time NOTAM/METAR/TAF scanning

🐛 BUG FIXES:
• Fixed floating widget briefly appearing on blacklisted domains
• Resolved state synchronization issues between content scripts and popup
• Corrected category toggle behavior for critical aviation alerts

📚 DOCUMENTATION:
• Updated tooltips with official ICAO/FAA Appendix B terminology
• Enhanced error messages for better user guidance

NOTAM Spot v0.9.18 Beta

✅ Added complete Nav Canada whitelist (16 subdomains): plan, spaces, products, navcanlink (YYZ/YVR/YUL/YYC/YOW) + legacy support
✅ CSP/ALLOWED_SUBDOMAINS updated with all active DNS confirmed domains
✅ Canada.ca aviation domains (tc.canada.ca, weather.gc.ca) for backup METAR/TAF
🔧 Maintained backward compatibility with legacy endpoints (awws/flightplanning)

No breaking changes. Same permissions as previous version.

CHANGES:
• Added internationalization (i18n) support for key interface elements, including banner messages and tooltips, now fully localized for en-US, pt-BR, es-ES, and fr-FR.
• Refined top-of-page notification banners with a more professional visual style and subtle hover animations suitable for operational aviation environments.
• Improved close-button UX with better hit area, subtle visual feedback on hover/press, and consistent styling across all banners.
• Enhanced accessibility by adding descriptive titles/aria labels to interactive elements, improving screen reader support.
• Hardened safety behavior around "Force Search" so that the interface reacts more consistently when security states require features to be blocked.

WHAT DID NOT CHANGE:
• Highlighting algorithms and supported profiles (NOTAM, METAR, TAF, SIGMET, etc.).
• Permissions: activeTab, storage, tabs and downloads (same as previous version).
• No use of extra host permissions beyond what was previously approved.
• No data collection, telemetry, analytics, or tracking.
• Background service worker logic and storage structure remain unchanged.

Version v0.9.16 combines critical permission hardening + cross-browser stability fixes.

🔒 Permissions (major improvement):
- Removed ALL host-specific permissions
- No new permissions added; existing permissions (tabs, storage, downloads) unchanged
- Internal security whitelist expanded (airnav.com + udds-faa.opendata.arcgis.com) without browser privileges

🛠️ Stability fixes:
- Fixed RangeError: Invalid language tag (en_US/pt_BR) with normalizeLocaleCode()
- Firefox tab mode: Proper locale load without DOM dependencies
- Sequential locale changes work reliably (300ms debouncing)
- Fixed locale combobox blank state after initial load

✅ Cross-browser: Chrome popup + Firefox/Edge tab mode fully functional.

Release Notes:
Version v0.9.15 combines critical permission hardening + cross-browser stability fixes.

🔒 Permissions (major improvement):
- Removed ALL host-specific permissions: now uses empty host_permissions array ("host_permissions": [])
- No new permissions added; existing permissions (tabs, storage, downloads) unchanged
- Internal security whitelist expanded (airnav.com + udds-faa.opendata.arcgis.com) without browser privileges

🛠️ Stability fixes:
- Fixed RangeError: Invalid language tag (en_US/pt_BR) with normalizeLocaleCode()
- Firefox tab mode: Proper locale load without DOM dependencies
- Sequential locale changes work reliably (300ms debouncing)
- Fixed locale combobox blank state after initial load

✅ Cross-browser: Chrome popup + Firefox/Edge tab mode fully functional.

Version v0.9.14 focuses on reducing permissions and improving privacy for users.

Removed all host-specific permissions: the extension no longer declares any host_permissions domains and now uses an empty host permissions list ("host_permissions": []).

No new permissions were added and no existing permissions (such as access to tabs, storage or downloads) were expanded.

All functional changes are internal refactorings to keep behavior identical while relying only on existing permissions and content scripts.

Updated internal security whitelist to include airnav.com and udds-faa.opendata.arcgis.com for improved aviation data coverage without adding new browser-level privileges.

Bug fixes and stability improvements for domain validation layer

Updated all external links in the extension UI and documentation to use the new endpoint https://aviation.smartcontentguard.com/ instead of https://notamspot.com/. This change reduces the risk of corporate firewalls and security filters blocking requests based on aviation/NOTAM-related keywords in the domain name, while preserving the same product experience and content.
​

Kept the public-facing product site and SEO strategy centered on https://notamspot.com/, using canonical tags and redirects on the web side so that search indexing, localization, and legal pages remain consistent and discoverable for end users.
​

No changes were made to the permission set, core logic, or data-processing behavior of the NOTAMSpot extension. The update is strictly about where informational and support links point, to improve reliability in enterprise and airport IT environments.
​

🎉 MAJOR UPDATE: SmartContentGuard is now NOTAMSpot v0.9.10

COMPLETE REBRAND - NEW VISUAL IDENTITY
Introducing NOTAMSpot: specialized tool for visually highlighting critical information in NOTAMs, METAR, TAF, and SIGMET for aviation professionals.

🆕 WHAT'S NEW:
• New visual identity: Icon with radar + airplane + spotlight (aviation colors)
• New name that reflects our focus: NOTAMSpot = "Spot the Critical. Instantly."
• Official website: https://notamspot.com (coming soon: full documentation & support)
• Clear positioning: Operational safety tool for pilots, flight dispatchers, and AIS operators

✅ FUNCTIONALITY PRESERVED (zero technical changes):
• Automatic highlighting of CRITICAL (red), ATTENTION (yellow), and INFO (cyan) terms
• Full NOTAM support (AISWEB, REDEMET, FAA NOTAM Search, EUROCONTROL, ICAO sites)
• Weather services profiles (METAR, TAF, SIGMET, AIRMET)
• Passive visualization (read-only display, no modification of official aviation data)
• Multilingual: Portuguese (Brazil), English (US), Spanish, and French

🔒 SECURITY & PRIVACY:
• No personal or flight data collection
• 100% local processing (no information sent to external servers)
• No telemetry, analytics, or tracking
• Transparent permission usage (activeTab, storage, scripting only)

📦 AUTOMATIC MIGRATION:
• Your settings and preferences have been preserved
• No action required - extension auto-updated seamlessly
• All highlighting profiles and customizations maintained
• If you prefer the old name, you can rename it locally (right-click > Manage extension)

🌍 SUPPORT:
• Documentation: https://notamspot.com/#support
• Report issues: support@notamspot.com

💡 WHY "NOTAMSpot"?
The new name better reflects what we do: help you SPOT critical information in NOTAMs instantly. Our mission remains unchanged: making aviation safety information more accessible through intelligent visual highlighting.

Thank you for your continued trust! Keep flying safe with NOTAMSpot.

✈️ SmartContentGuard Beta v0.9.9

✅ NEW: Complete Legal Documentation (Downloadable)
📄 AVIATION_DISCLAIMER.txt - International aviation compliance
📄 LICENSE.txt - Proprietary license
📄 QUICK_TERMS.txt - 1-page pilot checklist
📄 README_LEGAL.txt - Documentation index + FAQ

✅ Aviation Safety First
• Advisory-only tool (NOT flight-critical)
• Highlights NOTAMs/METAR/TAF terms locally
• ALWAYS verify with official sources (AISWEB, FAA NOTAM, EAD)
• 100% pilot responsibility for decisions

✅ Beta Improvements
• Legal UX: popup notice + local docs access
• 4 languages: pt-BR, en-US, es, fr
• Mobile-optimized documentation
• Zero data transmission (local processing only)

🛡️ For licensed aviation professionals only
• Pilots • Dispatchers • ATC • Meteorologists

Download legal docs directly from extension! 📥

v0.9.9 ready for production deployment.

SmartContentGuard v0.9.8 - I18N-CACHE v2.0 & PCN Detection

✨ NEW:
• I18N-CACHE v2.0: 99.99% HIT (12.6s→1.65ms)
• Category Toggles: Critical/Attention/Informative
• PCN Detection: 46/R/C/X/U 🟦Rigid 🟧Flexible
• 10/10 validated (SBGR, SBBR, SBRJ, SBPA)

⚡ PERF:
• 8 toggle caches: CAI_v1, CI_v1 (0ms HITs)
• 72% less compile (29→8ms Critical-only)
• 60% faster scans (SBBR: 5674→2270ms)

✅ FIXED:
• PCN icon cleanup in clearHighlights()
• Banner toggle UI precision

🌍 i18n: 4 langs, 68 PCN tokens
✈️ ICAO Annex 14 compliant

🚀 SmartContentGuard v0.9.6 Beta - Unicode Compatibility & Legal Compliance Update

NEW FEATURES:
✨ Universal Dash-Tolerance Detection
- Automatic detection of meteorological terms with Unicode variants (U+002D, U+2212, U+2010, U+2011)
- Enhanced compatibility with international aviation weather services (NAV CANADA, NOAA, Aviation Weather)
- Terms like "−SHRA", "−RA", "−FZRA" now detected regardless of hyphen/minus character variant
- Zero manual duplication required in configuration files

🛡️ Legal Compliance Enhancement
- New "Passive Display Only" badge in header
- Clear advisory disclaimer: "SmartContentGuard does not alter data, make decisions, or recommend actions"
- Reinforced advisory-only nature of the extension per aviation safety best practices
- Improved user guidance to always verify information from official sources

IMPROVEMENTS:
🔧 Preprocessing engine for automatic pattern expansion
🔧 Enhanced regex compilation with international character support
🔧 Improved detection accuracy across multilingual aviation platforms
🔧 Better visual communication of extension capabilities and limitations

TECHNICAL:
- Optimized compileRegexPatterns() method with Unicode preprocessing
- Character class expansion: [\-−‐‑] for dash-tolerant matching
- Maintained performance with zero overhead for non-dash terms
- Fully backward compatible with existing profiles (NOTAM, MET Services)

This update ensures SmartContentGuard works seamlessly with international aviation weather sources while maintaining clear communication about the advisory nature of the tool.

Always verify critical aviation information from official sources. SmartContentGuard is a visual aid only.

SmartContentGuard v0.9.5 — Permission & Locale Simplification

🔧 What's Fixed

Removed Unused scripting Permission: The extension no longer requests the scripting permission from the manifest. All content analysis and highlighting operates via declarative content scripts, maintaining full functionality while adhering to modern WebExtensions security standards.

Simplified Locale Support: Streamlined the internationalization structure by standardizing locale identifiers. The extension now supports pt-BR, en-US, es, and fr (instead of the previous regional variants es-ES and fr-FR). This improves compatibility with the Chrome Web Store's locale detection while maintaining full language support. Users in Spain, France, and all Spanish/French-speaking regions are now served the appropriate language automatically.

No Feature Changes: These are maintenance fixes only. All user-facing functionality remains unchanged.

Release Notes (v0.9.3 Beta)
🌍 Enhanced Internationalization & Visual Improvements

This update significantly improves how SmartContentGuard handles multiple languages and locales, ensuring a more consistent experience across different regions.

What's New:

Unified Locale Management: Migrated to a robust _locales structure with enhanced fallback mechanisms. The extension now reliably detects your browser language (pt-BR, en-US, es-ES, fr-FR) and loads the correct interface translations and legal documents without errors.

Legal Downloads Fix: Resolved an issue where "Legal Downloads" buttons were missing or pointing to incorrect paths for certain locales. Terms, Privacy Policy, and Compliance documents are now correctly linked for all supported languages.

Smart Language Detection: Improved the browser language detection logic to prevent "locale not found" warnings and ensure a seamless fallback to English or Portuguese when a specific dialect is unavailable.

Bug Fixes:

Popup UI Polish: Fixed visual glitches in the top panel and status indicators that could occur during profile switching or language changes.

Resource Manager Stability: Corrected internal path normalization issues that could cause 404 errors when fetching localized resources.

Versão em Português
🌍 Melhorias de Internacionalização & Ajustes Visuais

Esta atualização aprimora significativamente como o SmartContentGuard lida com múltiplos idiomas e regiões.

Novidades:

Gestão Unificada de Locales: Migração para estrutura robusta _locales com fallbacks melhorados. A extensão agora detecta corretamente o idioma do navegador e carrega traduções e documentos legais sem erros.

Correção de Downloads Legais: Resolvido problema onde botões de download não apareciam ou tinham caminhos incorretos em certos idiomas.

Detecção Inteligente: Lógica aprimorada para evitar avisos de "locale não encontrado" e garantir fallback suave.

Correções:

Interface do Popup: Corrigidos glitches visuais no painel superior ao trocar de perfil ou idioma.

Estabilidade: Ajustes internos de normalização de caminhos para evitar erros 404 ao carregar recursos localizados.