This proposal aims to upgrade Polkadot’s runtime to version [0.9.18](https://github.com/paritytech/polkadot/releases/tag/v0.9.18): 

Release notes, runtime changes and proposal hash can be found [HERE](https://github.com/paritytech/polkadot/releases/tag/v0.9.18). This release includes, among others, PR 4772 (login two parachains to swap slots), PR 10947 (bringing back maxnominators as a meatada constant), PR 4851 (adding proxy types for Kappa Sigma Mu) and PR 10690 (upgradable contracts using set_code function).

- Call hash for Polkadot upgrade: `0xa9ad07f0ea8e95c15247ba05a2754405acbf4de6cea8fe0cfdb94196c6093670`

Feel free to use srtool yourself to check the proposal hash. If passed by the Council, this proposal should be voted by the community and enacted after. Make sure to vote at your convenience!

Schedule a majority-carries referendum to be tabled next once it is legal to schedule
an external referendum.

The dispatch of this call must be `ExternalMajorityOrigin`.

- `proposal_hash`: The preimage hash of the proposal.

Unlike `external_propose`, blacklisting has no effect on this and it may replace a
pre-scheduled `external_propose` call.

Weight: `O(1)`

- Polkadot wants to upgrade its runtime to version 0.9.18.
- The release includes changes like login two parachains to swap slots and adding proxy types for Kappa Sigma Mu.
- The proposal hash for the upgrade is 0xa9ad07f0ea8e95c15247ba05a2754405acbf4de6cea8fe0cfdb94196c6093670.
- The Council will vote on the proposal and if passed, the community will vote on it too.
- You can use srtool to check the proposal hash.

#178 Runtime Upgrade v9180 - Polkadot Network