This proposal aims to enable pre-checking for runtime upgrade on parachains: With pre-checking enabled a parachain is only allowed to upgrade their runtime **after validators have tried compiling it and they agree it is good**, as opposed to just accepting it blindly and then fail when the parachain tries to produce blocks with the new runtime. This is just generally a good idea, exists for a while already and has been successfully tested on Versi, Rococo and Westend. It is also required for rolling out slashing as it helps reducing the risk of unjustified slashes.

Parachains need to support the `go_ahead_signal,` but that should be a non issue as this has been introduced over a year ago.

 - Call to be enacted: [HERE](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frpc.dotters.network%2Fpolkadot#/extrinsics/decode/0x332901).

Preimage is submitted. Make sure to review and vote at your convenience!

Enable or disable PVF pre-checking. Consult the field documentation prior executing.

 
1. This proposal enables pre-checking for runtime upgrade on parachains
2. Validators need to agree the runtime is good before allowing the upgrade
3. It helps reduce unjustified slashes
4. Parachains need to support `go_ahead_signal`
5. Preimage is submitted and voters should review and vote at their convenience

#100 Setting pvfCheckingEnabled In The Configuration To TRUE

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