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v6.2.0: Product-Led Sharing, Timetable Export & High-Intent Landing Architecture

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@sreyasts sreyasts released this 24 Sep 03:29
· 71 commits to main since this release
v6.2.0
6c4dd9c

Changelog

All notable changes to Mission PlusTwo will be documented in this file.

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

[6.2.0] - 2026-09-24

Added

  • Product-Led Growth & Sharing Engine:
    • Integrated Web Share API with instant WhatsApp and Telegram share fallbacks (src/app.js).
    • Added 1-click clipboard link copying (copyShareLink()) with visual toast confirmation.
    • Added CSV timetable export (exportTimetableCsv()) generating clean downloadable spreadsheets (mission-plustwo-schedule.csv).
    • Added dedicated @media print stylesheet in src/style.css for high-contrast, black-and-white physical wall printing and PDF saving.
  • Search Engine Acquisition Pages:
    • /pages/plus-two-timetable.html: High-intent Kerala Plus Two Timetable & Revision Countdown landing page with Schema.org FAQPage structured data.
    • /pages/study-hours-calculator.html: Interactive client-side study hours and runway calculator computing required school day vs holiday study hours.
    • Updated firebase.json rewrites and sitemap.xml with priority 0.9 indexing.
  • Open Source Contributor Infrastructure:
  • Forensic & Analytics Documentation:
    • docs/OSS-ADOPTION-BASELINE.md: 100% measured baseline of GitHub, Product, SEO, and OSS metrics.
    • docs/ANALYTICS.md: Privacy-first DPDP Act & GDPR compliant analytics architecture.
    • docs/IMPACT.md: Public-safe community impact dashboard.
    • docs/GROWTH-EXPERIMENTS.md: Structured growth hypotheses and results tracking.
    • docs/monthly/2026-09.md: Monthly maintainer report for September 2026.
    • docs/CODEX-OSS-EVIDENCE.md: Verified evidence portfolio for OpenAI Codex for Open Source.

Changed

  • Standardized canonical analytics events in src/analytics/tracker.js (landing_view, onboarding_started, plan_generated, plan_shared, plan_exported, return_visit).
  • Updated package author to Sreyas T S <sreyasts52@gmail.com>.

[6.1.0] - 2026-09-23

Added

  • Formal Algorithm Specification: Authored docs/ALGORITHM.md detailing continuous accumulator pacing, multi-subject interleaving, and topological constraint satisfaction.
  • Empirical Benchmark Suite: Created scripts/benchmark-planner.js and docs/BENCHMARKS.md comparing Mission PlusTwo against Naive Sequential and Round-Robin models across 60-day CS, 90-day Bio, and 25-day sprint scenarios.
  • Telemetry & DPDP Act Specification: Published docs/USAGE-METRICS.md codifying cookieless, zero-PII retention funnels and legal compliance under India's Digital Personal Data Protection Act 2023.
  • Forensic Growth Baseline: Documented complete Day 0 verifiable metrics in docs/OSS-GROWTH-BASELINE.md and adoption ledger in docs/IMPACT.md.
  • Expanded Contributor Templates: Added standardized GitHub issue templates for Feature Requests, Malayalam Translation, Accessibility (a11y), and Performance profiling.
  • Commerce & Humanities Streams: Added curriculum mappings for Commerce (Accountancy, Business Studies, Economics) and Humanities subjects.

Fixed

  • Fixed scheduler runway underflow guard throwing explicit error on non-positive date bounds (totalDaysCount <= 1).
  • Implemented task deduplication on input syllabus sets to prevent infinite allocation loops.
  • Enforced strict numerical bounds ([1, 5]) on task weights and chapter difficulty coefficients.
  • Static Analysis Hygiene: Cleaned 100% of unused imports and variable warnings across src/engine/planner.js and src/app.js (0 errors, 0 warnings).

[6.0.0] - 2026-09-22

Added

  • Modular ESM Architecture: Migrated monolithic architecture to modern Vite bundle with discrete modules for planning, audio, i18n, and analytics.
  • Dual-Stream Support: Full support for Computer Science stream and Biology Science stream (incorporating Botany & Zoology).
  • Plus One (+1) Improvement Module: Integrated backlog scheduling engine that guarantees completion of improvement subjects prior to examination dates.
  • Native WebAudio Harmonic Synth: Replaced 100+ KB Tone.js dependency with an ultra-compact 0.6 KB WebAudio harmonic bell synthesizer.
  • WebAPK & Maskable PWA: Upgraded manifest and icon assets for full Android WebAPK standalone installation without browser framing.
  • Google Account Cloud Sync: Optional Firebase Firestore persistence enabling students to sync study progress seamlessly across mobile and laptop devices.
  • Cross-Domain Forwarding: Implemented canonical domain bridge syncing state between GitHub Pages and Firebase Hosting.

[5.0.0] - 2026-09-19

Added

  • Initial public release of Mission PlusTwo interactive study timetable generator for Kerala DHSE Class 12.
  • LocalStorage state persistence and task checkmark tracking.
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