The Polkadot DOT -2.79% Parity team proposes to launch more Common Good Parachains.
The proposal states that on the technical side, the work involves runtime changes to allow for more expressive interaction on XCM and to develop a test and release process that scales to multiple runtimes.
Note that public welfare parachains are allocated by Polkadot’s on-chain governance system, and they are considered public interests of the network, such as as bridges to other networks or chains.
They are usually identified as system-level chains or public chains, without an economic model, and can help remove transactions from the relay chain, making it more efficient to handle parachains.