Release solidity/v1.6.0

[lukasz-zimnoch]

Team	Address
Threshold Council	0x9f6e831c8f8939dc0c830c6e492e7cef4f9c2f5f
tBTC Deployer	0x123694886DBf5Ac94DDA07135349534536D14cAf

Rationale

The main goal of release solidity/v1.6.0 is introducing the redemption veto mechanism (#781). Secondly, this release enables the support for deposits with extra data (#749) which is the foundation of the tBTC Solidity SDK.

Checklist

Phase 1

Steps executed by tBTC Deployer:

• Deploy and verify a new instance of the Deposit library (0xCD2EbDA2beA80484C55675e1965149054dCcD137)
• Deploy and verify a new instance of the DepositSweep library (0x392635646Bc22FC13C86859d1f02B27974aC9b95)
• Deploy and verify a new instance of the Redemption library (0x8EF1BEDA734E696CC055269b46BB5a0EC7Ac9f5E)
• Deploy and verify a new instance of the Wallets library (0xc989d3E486AAe6355F65281B4d0bde08c8e32fBC)
• Deploy and verify a new instance of the Fraud library (0x51bBeF1c7cC3a1D3bC5E64CE6C3BA6E66fbA3559)
• Deploy and verify a new instance of the MovingFunds library (0x3E0407765FaC663d391aE738f3Aa0c98EAb67a90)
• Deploy and verify a new Bridge contract implementation (must use new instances of the above libraries) (0xA4996De73682BDF9CF514fbf238ee387C1a21A26)
• Deploy and verify a new instance of the BridgeGovernance contract (0xf286EA706A2512d2B9232FE7F8b2724880230b45)
• Transfer ownership of the new BridgeGovernance contract to the Threshold Council
• Deploy and verify the new RedemptionWatchtower contract (use same ProxyAdmin as the Bridge) (0xB8dF0A949aC45ff8f401553A1dcb742Feb38E6D3)
• Transfer ownership of the RedemptionWatchtower contract to the Threshold Council
• Deploy and verify the new WalletProposalValidator contract (0x30019D85a86ABD3cDA1167F4C052690c32FBDEc2)
• Publish @keep-network/tbtc-v2@1.6.0 npm package
• Publish solidity/v1.6.0 release notes

Steps executed by Threshold Council:

• Point the Bridge proxy to the new implementation (ProxyAdmin address is 0x16A76d3cd3C1e3CE843C6680d6B37E9116b5C706, Bridge proxy address is 0x5e4861a80B55f035D899f66772117F00FA0E8e7B)
• Transfer governance of the Bridge to the new BridgeGovernance contract (2-step action)

Phase 2

Steps executed by Threshold Council:

• Enable the veto mechanism with initial Guardians using the RedemptionWatchtower.enableWatchtower call. Set the Token Holder DAO timelock contract (0x87F005317692D05BAA4193AB0c961c69e175f45f) as RedemptionWatchtower's manager
• Attach the RedemptionWatchtower contract to the Bridge using the BridgeGovernance.setRedemptionWatchtower call

Steps executed by Redemption Guardians:

• Clear out stalled redemptions by vetoing them with 100% penalty fee

Phase 3

Steps executed by tBTC Deployer:

• Release v2.0.0 client version with RFC 12
• Shutdown the maintainer bot and abandon WalletCoordinator contract

Steps executed by Threshold Council:

• Reduce the penalty fee to 5% (through Token Holder DAO proposal)
• Restore redemption timeout to the previous value of 42 days

[tomaszslabon]

@lukasz-zimnoch
We have recently updated the BitcoinTx library.
Shouldn't we redeploy it as well?

[lukasz-zimnoch]

@lukasz-zimnoch
We have recently updated the BitcoinTx library.
Shouldn't we redeploy it as well?

BitcoinTx is an internal library that is embedded in the client contracts. It is not deployed separately.