v1.2.0: 10-Stage JLPT Curriculum & Adaptive Learning Path Engine

Changelog

All notable changes to Nihongo Talk will be documented in this file.

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

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[1.2.0] - 2026-10-20

🚀 Added

• 10-Stage JLPT Curriculum & Learning Ecosystem: Full pedagogical overhaul addressing all items tracked in kamchilik.md.
• 7-Skill Matrix Engine & Visual Radar (SkillMatrixService.ts & JlptSkillMatrixView.tsx):
  • Measures mastery across Vocabulary, Grammar, Kanji, Reading (Dokkai), Listening (Choukai), Writing, and Speaking for N5–N1 levels.
  • Multi-format validation requiring $\ge 2$ distinct activity types and 85% accuracy benchmark.
• Adaptive Difficulty Engine (AdaptiveDifficultyEngine.ts):
  • Real-time diagnostic evaluation, learner profiling (Advance, Standard, Remediate), and automatic next-lesson recommendation with deterministic fallback.
• Curriculum Lesson Practice Expansion (1,238 Exercises):
  • Practice exercises increased from 281 to 1,238 across N5–N1 lessons.
  • Diverse question formats: context fill-in-the-blank, particle completion, sentence ordering (★), and bidirectional translation.
• Official JLPT Mock Exam Simulator:
  • Randomized dynamic 25-question variants pulled from comprehensive question pools.
  • No-repeat question filtering via local storage tracking.
  • Official 180-point scaled scoring and statistical JLPT Pass Probability indicator.
• Complete Kanji Cycle & Confusing Kanji Comparator (ConfusingKanjiComparator.tsx):
  • Stroke order step-by-step animations with stroke count and readings.
  • HTML5 Kanji canvas practice with Hanko/Sumi brush colors, ghost template, memory, and step-by-step drawing modes.
  • Interactive comparison of 10 key confusing kanji pairs across N5–N1 with discrimination quizzes.
• Listening (Choukai) Enhancements:
  • Exam script hidden until submission to emulate authentic test conditions.
  • Playback speed controls (0.8x, 1.0x, 1.2x, 1.5x), speaker gender badges, and gap-by-gap loop/shadowing mode.
  • 1-click mistake export to Anki SRS flashcards.
• 6-Dimensional Speaking Rubric (SpeakingSection.tsx & SessionReportModal.tsx):
  • Evaluates pronunciation (pitch accent), fluency, grammar, vocabulary range, naturalness (nuance), and hesitation management.
• Error Explanation & Distractor Analysis (MistakeVaultService.ts & JlptMistakeNotebook.tsx):
  • Automatic broken grammar rule identification.
  • Detailed distractor breakdown explaining why incorrect choices are invalid and what trap they present.
  • Instant remedial drill generator.
• Offline Resilience & Sync Status Bar (OfflineSyncStatusBar.tsx):
  • Transparent banner showing offline status, local TTS fallback warnings, and un-synced mutation count.
  • 1-click manual sync flushing offline queues (flashcards, exams, speaking, gamification, lessons) to Supabase.

🛠 Fixed

• Duplicate Kanji IDs: Resolved duplicate identifiers kanji_n1_scorn and kanji_n1_dark in jlptKanjiDatabase.json.
• Silent 85-Point Writing Evaluator: Removed hardcoded 85-point fallback in JlptWritingPage.tsx; wired to real evaluation engine.
• Missing Audio URLs: Populated missing audioUrl entries across mock exams and listening datasets with valid studio audio paths.
• Vocabulary Data Quality Pipeline (12,025 Words):
  • Filled missing example sentences and Uzbek translations across N4, N2, and N1.
  • Deduplicated cross-level vocabulary overlaps in N3 and N2.
  • Generated phonetically accurate Romaji with particle separation for 666 N5 and 618 N3 words.
  • Enforced automated data integrity validation via dataIntegritySchema.test.ts (20/20 passing tests).
• README & Marketing Claims: Corrected overstatements to accurately reflect curated JLPT preparation tools.

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[1.1.0] - 2026-09-15

• Enhanced real-time speech analytics and voice roleplay scenarios.
• Integrated PWA Service Worker caching and offline sync queue coordinator.
• Added JLPT Hub page and gamified study rooms.

v1.0.0

Ushbu versiyada oflayn rejim, savatcha, eksport/import va Telegram xabarnomalari to'liq ishga tushirildi