How to work with and improve legacy code.
- Getting Started With PHP Upgrades
- Detect Compatibility Issues With phpco
- Should I Fix or Swap the Libraries?
- 50-minute presentation "Rewriting Legacy Code" at The Legacy of SoCraTes 2020.
- Podcast: How Every Decision Introduces Technical Debt on Maintainable with Robby Russel
- Podcast: Working On Legacy Code on How To Code Well with Peter Fisher.
- Article: Code is Cheap, Knowledge is Expensive
- Article: The Fate of the Legacy PHP Documentation
- Article: Lessons Learned from Testing and Refactoring Legacy