Maintainability Products
Curated maintainability products we use and recommend. Each item tested in real-world scenarios. Find 2 products with detailed reviews, pros, and cons.

Software Engineering at Google: Lessons Learned from Programming Over Time
Titus Winters, Tom Manshreck, and Hyrum Wright's practical lessons in scale, culture, testing, and long-term maintainability. Learn how Google builds software that lasts decades.
Lessons from maintaining codebases for decades. The chapters on testing, code review culture, and documentation gave me frameworks that work at any scale. Read full review.

Working Effectively with Legacy Code
Michael Feathers' must-read for anyone inheriting messy systems, refactoring safely, or adding tests. Learn how to work with code you didn't write and make it better without breaking it.
The book I read when inheriting a codebase with no tests. Feathers' techniques for sprouting methods and dependency breaking gave me confidence to make changes safely. Read full review.