Code quality still matters a lot. But when pondering how you could improve your coding even further, you should consider aiming for better commit messages. You should request this not just from yourself, but from your entire team and all the contributors. The story of a software matters as much as its latest checkout.
Excellent tips from Mislav for investigating changes using a project's Git history.
Linked from: http://mislav.uniqpath.com/2014/02/hidden-documentation/
Engineering Director at Adobe Creative Cloud, team builder, DFW GraphQL meetup organizer, platform nerd, author, and Jesus follower.