Polkadot parachain Acala and its Kusama sister network Karura will cease block production on February 10, 2027, pending approval of Acala referendum No. 195 and Karura referendum No. 137. The shutdown decision stems from insufficient DeFi liquidity depth across the Polkadot and Kusama ecosystems, with the team citing fragmented liquidity and user bases due to the multi-parachain structure. Users must withdraw external assets including DOT, KSM, USDT, and USDC before the halt date. LDOT unbonding requests require submission by January 12, 2027, while LKSM must be unbonded by February 2. Native tokens ACA and KAR cannot be withdrawn and will remain on the original chains. Post-shutdown, the team plans to return remaining external assets to users' Asset Hub accounts but cannot guarantee full recovery. Treasury-held external assets will be donated to the respective Polkadot and Kusama treasuries.