« first day (3327 days earlier)      last day (38 days later) » 

2:09 AM
You maintain compatibility with a clear spec and disciplined teams. Also, testing. There might be fancier tools, but they really aren't necessary. Anyway, this sort of "practice of software engineering" question is too broad and off-topic for Stack Overflow. You might be able to get help on another site, as Geeky suggests in the comment above. — Cody Gray ♦ 38 secs ago
 
 
18 hours later…
8:17 PM
This question will be better answered on softwareengineering.stackexchange.com, this site isn't a good place for advice requests. — Taha Paksu just now
 

« first day (3327 days earlier)      last day (38 days later) »