Updating old Android codebase

An old client of mine contacted me to fix some bugs and the tricky part was that I have to update an Android codebase that hasn’t been updated in 3 years.

I have updated com.android.tools.build:gradle from v3.6.4 to v4.2.2.

And from v4.2.2 to v7.3.1.

This is how old the codebase is.