The very interesting Polkadot Network uses Wasm for forkless upgrades, the closest I have seen to the idea of Safe Network autonomous upgrades that was discussed here a few years back.
https://wiki.polkadot.network/docs/en/learn-wasm
Forkless Upgrades
By using Wasm in Substrate, the framework powering Polkadot, Kusama, and many connecting chains, the chains are given the ability to upgrade their runtime logic without hard forking. Hard forking is a standard method of upgrading a blockchain that is slow, inefficient, and error prone due to the levels of offline coordination required, and thus the propensity to bundle many upgrades into one large-scale event. By deploying Wasm on-chain and having nodes auto-enact the new logic at a certain block height, upgrades can be small, isolated, and very specific.