Retrofits in testingとは 意味・読み方・使い方

Retrofitting the code means keeping the code in sync with respect to all the regions. Suppose, in your project you have something like Development, Staging, Qual and Production regions. You do some changes for your project in the development region. And this needs to be moved to Staging or Qual after some testing. In that case, you merge your changes with the source program of the respective region where it needs to be elevated. So, you pull your changes alone from Devl to Stag or Qual without any other project changes. Hope this helps.