`Waku v1` was a fork of Whisper with some added tweaks for efficiency. `Waku v2` introduces a fully revamped suite of protocols designed to address the goals set out [previously](/#motivation-and-goals).
The development of the Whisper protocol lagged behind the advancements made by the Ethereum EVM and Swarm, primarily because there was no dedicated team working on building the protocol.
Due to the lack of progress made on Whisper and growing concerns around scalability, [Vac](https://vac.dev/) was established to focus on researching and developing more scalable peer-to-peer messaging solutions.