This referenda increases the parachain validator set size from 300 to 400 and the maximum backing group size from 3 to 4. As a result the total number of cores remains 100 (**coretime_cores: 56** and 44 inactive)

The reasons for also changing the backing group size are:
- https://kusama.polkassembly.io/referenda/294 changes to a backing group of size 3 has shown to increase parachain block times
- keeping the same number of total cores such that all 100 backing groups get rewards given the session is 1 hour and group rotations happen every 1 minute

For more details check out: https://forum.polkadot.network/t/update-parachain-validator-set-size-increase-on-kusama/8218

Whitelist: https://kusama.subsquare.io/fellowship/referenda/80

See [`Pallet::dispatch_whitelisted_call_with_preimage`].

- **Problem Statement:** Increasing parachain validator set size and backing group size to optimize parachain block times.
- **Significance:** Enhancing efficiency by adjusting validator and backing group sizes to ensure all 100 backing groups receive rewards within a 1-hour session.
- **Proposed Solution:** Increase parachain validator set size from 300 to 400 and maximum backing group size from 3 to 4.
- **Expected Outcomes:** Improved parachain block times and optimized reward distribution for all 100 backing groups.

#405 Increase max_validators to 400 and max_validators_per_core to 4

No Active Proposals