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Update: The Road to Multi-Collateral Dai—Kovan Release v0.2.4
April 24, 2019
Introduction
Two weeks ago (April 10), we announced the release of MCD v0.2.3 on the Kovan testnet. That release, which included updates to the MCD Core Contracts, the CDP Portal, Dai.js, and the deployment of the Governance Process, was met with great response from the community. Thank you to everyone who tested and provided feedback. As we progress, the Foundation’s goal is to be as transparent as possible with the community and consistently clarify the scope of releases.
For context around MCD as a decentralized system that will operate in an autonomous way once deployed onto the blockchain, see the original The Road to Multi-Collateral Dai post.
Today, we are releasing the third and most recent update, MCD 0.2.4, on the Kovan testnet. This release covers the newest development updates within:
- MCD CDP Portal
- Dai.js
- New Contract Addresses
Descriptive Changelog (v0.2.3 < > v0.2.4)
Timeline
- Version 0.2.2 (Released on March 28, 2019)
- Version 0.2.3 (Released on April 4, 2019)
- Version 0.2.4 (Released on April 18, 2019)
Since the v0.2.3 Kovan release, the following has been changed and/or added for the newest 0.2.4 release:
New Contract Addresses
The v0.2.4 release includes new collateral and MKR token addresses. This is important to note if you are looking to test and experiment with product UIs, as you will need to get the newest versions of the collateral and MKR tokens.
The new MCD 0.2.4 Kovan contract addresses can be found by running: `curl-v http://www.mocky.io/v2/5cb8de534c0000c51ad3d7c1
Note: There were no changes made to the smart contracts for this release.
Core System Contracts
| Contract Name | Description | Contract Address |
|---|---|---|
| MCD_VAT | The CDP core engine keeps track of DAI credit system accounting. | 0xacdd1ee0f74954ed8f0ac581b081b7b86bd6aad9 |
| MCD_CAT | The user-facing gateway contract for liquidating (biting) CDPs. | 0x81f7aa9c1570de564eb511b3a1e57dae558c65b5 |
| MCD_FLAP | The flap auction contract is responsible for buying and burning MKR when the system has a surplus. | 0xb6e31ab6ea62be7c530c32daea96e84d92fe20b7 |
| MCD_FLOP | The flop auction contract is responsible for minting and selling MKR to cover bad debt. | 0x275ec1950d6406e3ce6156f9f529c047ea41c8ce |
MKR Governance Token Contract
| Contract Name | Description | Contract Address |
|---|---|---|
| MCD_GOV | The MKR governance token contract. | 0xd237d1f674c2232cef8fdc7148a59d576b67a8a3 |
DAI Stablecoin Contracts
| Contract Name | Description | Contract Name |
|---|---|---|
| MCD_DAI | The DAI stablecoin contract. | 0xc7cc3413f169a027dccfeffe5208ca4f38ef0c40 |
| MCD_JOIN_DAI | The DAI adapter is responsible for minting and burning DAI. | 0x7bb403aae0330f1acaad8f2a06ebe4b4e4784418 |
ETH Collateral Contracts
| Contract Name | Description | Contract Address |
|---|---|---|
| MCD_JOIN_ETH_A | The ETH adapter is responsible for joining and exiting ETH collateral. | 0x75f0660705ef0db9adde85337980f579626643af |
| MCD_FLIP_ETH_A | The ETH flip auction contract is responsible for selling off ETH collateral for DAI when a CDP is liquidated. | 0xb88d2655aba486a06e638707fbebd858d430ac6e |
Collateral 1 Contracts
| Contract Name | Description | Contract Address |
|---|---|---|
| COL1 | Collateral 1 token contract. | 0xc644e83399f3c0b4011d3dd3c61bc8b1617253e5 |
| MCD_JOIN_COL1_A | The COL1 adapter is responsible for joining and exiting COL1 collateral. | 0xc4e81c9690bb664d682826e3415134c23d08e7bb |
| MCD_FLIP_COL1_A | The COL1 flip auction contract is responsible for selling off COL1 collateral for DAI when a CDP is liquidated | 0x6e8032435c84b08e30f27bfbb812ee365a095b31 |
View the full list of new contract addresses here.
User Interface Changes
CDP Portal
- CDP sidebar changes.
- Initial implementation of a transaction state indicator UI.
- UX improvements across the app.
- New design system features that improve UI consistency and flexibility.
Dai.js
Dai-Governance Plugin
- Updated makerdao/services-core to 0.9.5.
- Updated makerdao/dai to 0.15.1.
- Updated ChiefService to get the network by accessor property on dai.js Web3Service.
- Governance Dashboard
Next Steps
The team is discussing plans to migrate to the Goerli testnet for the next release, so look out for that exciting update!
As always, we want to remind you that community feedback is crucial as we move toward the Ethereum mainnet release of Multi-Collateral Dai. Please join our public #product-feedback channel on Rocket.Chat to provide feedback and ask any questions you may have. You can also provide product feedback on the CDP Portal using Usersnap. You do not have to install a Chrome extension to do so. The Usersnap widget allows you to make comments right away.
Getting MakerDAO Updates
To receive updates on Maker from the Foundation, go to https://makerdao.com/en/. There, in the bottom right corner of the page, you will find the “Sign up for the latest content and updates” button. Please enter your email and hit ’Subscribe.’ If you are interested in learning more about creating a product or tool that leverages the Dai Credit System, contact the Foundation’s product team via Rocket.Chat.