Juno Rhea Upgrade (v19)

- Enforce Validator's Max 24 Hour Change Rate To 5%
- Permissionless x/clock registration
- IBC 08-Wasm Light Client (Polkadot<->Juno)
- Migrate Core-1 Multisig funds to Charter Council per Prop
- Fixes CosmWasm Memory Leak

Github Release

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## Voting Options
YES: Agree to proceed with the v19 network upgrade.
NO: Disagree with the v19 network upgrade.