June 2026 update

New course:

• React — learn modern React with components, props, and Vite

New lessons in React:

• Create React Project
• Create Multi-Module Project
• Project Structure
• Create Components

Lessons UI improvements:

• Added an interactive cross-course lesson dependency graph in a collapsible panel, showing how lessons connect across courses
• Added a “Copy as Markdown” button to lessons
• Fixed PlantUML diagram rendering