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Changelog

All notable changes to this project will be documented in this file.

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

[Unreleased]

Added

  • Open-source release under Apache License 2.0
  • Comprehensive CONTRIBUTING.md guide
  • SECURITY.md with responsible disclosure policy
  • CODE_OF_CONDUCT.md (Contributor Covenant v2.1)
  • GitHub issue templates (bug reports, feature requests)
  • GitHub pull request template
  • Root-level docker-compose.yml for one-command self-hosting
  • Development startup script (start.sh)
  • CI workflow for pull request validation (lint, type-check, build)
  • Dependabot configuration for automated dependency updates
  • .prettierrc and .editorconfig for consistent code formatting
  • NOTICE file with third-party attribution
  • CHANGELOG.md following Keep a Changelog format
  • DOMPurify sanitization for user-generated HTML content
  • React ErrorBoundary component for graceful error handling

Changed

  • Replaced all hardcoded credentials with environment variable placeholders
  • Replaced proprietary license with Apache License 2.0
  • Updated .gitignore with comprehensive patterns
  • Improved .env.example files with clear documentation and grouped sections
  • Made all URLs configurable via environment variables
  • Fixed CORS gateway fallback from wildcard * to localhost defaults
  • Replaced console.error with NestJS Logger service
  • Removed token debug logging from WebSocket auth guard
  • Disabled production sourcemaps in Vite build

Removed

  • Proprietary INFO INLET license
  • Hardcoded API keys and secrets from example files
  • Hardcoded server IPs from documentation
  • Token substring logging from authentication flows
  • Production URL fallbacks from frontend config
  • .DS_Store files from version control

Security

  • Removed all real credentials from .env.example files
  • Removed production .env files from git tracking
  • Added DOMPurify to sanitize dangerouslySetInnerHTML content (XSS prevention)
  • Fixed CORS wildcard fallback to restrict origins
  • Removed sensitive token logging from WebSocket guard

[0.1.0] - 2025-02-05

Added

  • Initial AI-powered learning platform
  • NestJS backend with 27 modules and 120+ REST endpoints
  • React 19 frontend with Vite, Tailwind CSS, and Radix UI
  • 6 killer AI features:
    • Exam Clone: upload past exams, generate practice questions
    • Multi-Agent Problem Solver: analysis, solution, verification agents
    • Knowledge Graph Visualization: entity and relationship extraction
    • Teach-Back Evaluation: Feynman technique with AI feedback
    • Deep Research Mode: RAG + web search with structured reports
    • Code Sandbox: secure Python execution with scientific libraries
  • Knowledge base with document processing and semantic search (RAG)
  • AI-generated quizzes and SRS flashcards
  • Real-time chat with citations from uploaded documents
  • Learning paths with AI-generated study routes
  • Stripe subscription billing
  • JWT + OAuth authentication (Google, Apple)
  • PostgreSQL database with 27 tables (raw SQL, no ORM)
  • Redis caching and BullMQ job queue
  • Qdrant vector database for semantic search
  • ClickHouse analytics
  • Cloudflare R2 file storage
  • Socket.io real-time WebSocket updates (6 namespaces)
  • i18n support for 12 languages
  • GitHub Actions CI/CD pipeline
  • Production deployment with PM2 and Nginx