Polkadot v9340 Runtime Upgrade
Assuming Referendum 96 passes (currently 99% in favor), Polkadot will upgrade to runtime v9340 on Saturday 14 Jan. This will have several effects: please read below! Polkassembly
First, any outstanding multisig calls (ones where one signatory has signed, but not the threshold) will not be able to execute. Please either finish your multisig calls before this upgrade, or wait until after it is completed. Remove multisig's Calls by gavofyork · Pull Request #12072 · paritytech/substrate · GitHub
All preimages and the dispatch queue will be cleared. Any Referenda already passed but not enacted will thus not execute. If the Referendum is ongoing, the preimage can be re-uploaded after the upgrade. Bound uses of `Call` by gavofyork · Pull Request #11649 · paritytech/substrate · GitHub