There's no mention of some of the recent work that's been developed since this was last updated. * [PLONK](https://eprint.iacr.org/2019/953.pdf) * [Halo](https://eprint.iacr.org/2019/1021.pdf) * [Halo Infinite](https://eprint.iacr.org/2020/1536.pdf) not sure which others exist, I'm not an expert