BTZO would like to inform users about the upcoming Ethereum Fusaka Hard Fork, a major network upgrade expected to impact the Ethereum mainnet and multiple Layer-2 (L2) networks. Due to this upgrade, BTZO will temporarily suspend deposits and withdrawals for the affected assets on Ethereum and all impacted Layer-2 networks. The suspension schedule is detailed below.
1. Base & Optimism Hard Fork
Both Base and Optimism networks will undergo their upgrades ahead of the main Ethereum event.
Hard Fork Activation Time
2025-12-02 16:00:01 UTC / 2025-12-03 00:00:01 UTC+8
Deposit & Withdrawal Suspension Time (Base, Optimism)
2025-12-02 10:00:00 UTC / 2025-12-02 18:00:00 UTC+8
2. Ethereum Fusaka Hard Fork (Mainnet & All Layer 2s)
This is the primary network upgrade for Ethereum and will require synchronized suspensions across all connected L2 networks: Arbitrum, Optimism, Base, Blast, Scroll, ZKSync, Metis.
ETH Hard Fork Activation Time : 2025-12-03 21:49:11 UTC / 2025-12-04 05:49:11 UTC+8
Deposit & Withdrawal Suspension Time (ETH & All L2s) : 2025-12-03 21:35:00 UTC / 2025-12-04 05:35:00 UTC+8
Expected Re-Enable Time
If block production is normal: 2025-12-03 22:05:00 UTC / 2025-12-04 06:05:00 UTC+8
If abnormalities occur: Reopening time will be adjusted based on on-chain conditions
The following networks and their native/assets are expected to be affected:
Ethereum Mainnet: ETH, all ERC-20 tokens
Arbitrum One: ETH on Arbitrum, ~8 tokens
Optimism: OP, WLD
Base: ETH on Base, 10+ on-chain tokens
Blast: BLAST
Scroll: SCR
ZKSync: ZK
Metis: METIS
If you have any questions or need assistance, please contact our support team through live chat system.
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