Welcome to the Uniswap protocol V2 docs.
The pages here contain conceptual and technical documentation of the Uniswap V2 protocol.
If you are new to Uniswap, you might want to check out the Protocol overview first.
The V2 Uniswap protocol is separated across two repositories
The V2 SDK, which can assist developers when interacting with the Uniswap V2 Protocol can be found here.