How does test driven development help in long-term project maintenance? Test driven development helps long-term project maintenance by keeping the code stable and easy to manage. Since tests are written before the code, every feature is already checked for errors. When changes or updates are made later, existing tests quickly show if anything breaks. This approach reduces bugs, makes refactoring safer, and keeps the code clean. It also lowers maintenance cost and helps new developers understand the project faster. Overall, test driven development makes software easier to maintain over time. https://www.samyak.com/news-post/test-driven-development/