Lesson 9 of 100

Versioning and Code History Concepts

Understand 'Technical Debt' and the professional approach to legacy code management.

Briefing

Concepts

Mission 1

Mission 2

Complete

Pyfessor

Lesson Briefing

"Every project accumulates 'Technical Debt'. It's not bad code—it's code that was right at the time but is now a constraint. Professional engineering is about 'Refactoring'—changing the structure of code without changing its behavior. We learn to write 'Extensible' code that can evolve without a total rewrite."