Very little about software engineering has changed over past last three months. A great deal has changed about coding, not unlike when we saw the rise of high order programming languages and compilers, the difference today being that the number of developers is far larger and distribution channels are such that the velocity and breadth of change is far greater. The entire history of software engineering is one of raising the level of abstraction.
Software engineering changed more in the last 3 months than the preceeding 30 years. Everything about running a software company needs to be rethought from first principles.