Release 2.2.1

imUSD Savings Vault on Polygon

• Deployment of RewardsDistributor to Polygon
• ported old StakingRewards contracts on master. This includes
  • upgrade to Solidity 0.8.2
  • migration of contract tests to Hardhat, Ethers and Waffle
  • upgraded StakingRewards contracts to they can be proxied/initialized
  • Added StakingRewardsWithPlatformToken that can reward MTA and the WMATIC platform token
• Added task deploy-imusd-staking to deploy proxied StakingRewardsWithPlatformToken to Polygon for imUSD vault (v-imUSD)
• Added task polly-dis-rewards to distribute MTA and WMATIC rewards to the v-imUSD pool on Polygon
• Added contract network address factory

Release v2.2.0

Pool Together changes

Changes so mStable contracts and functions can be imported into external repos. eg pooltogether-mstable

• Added underlying() function to ISavingsContractV2 interface used by the PoolTogether yield source contract
• Updated from legacy hardhat-typechain to @typechain/hardhat dependency
• Upgraded to latest dependencies including ethers, typechain, hardhat and typescript
• Export functions and types from the package
• Added type definitions to TS config
• Moved typescript output from transpiled to dist and added to repo and published package
• Fixed bug in deployMV3 task that was causing type errors with new Typechain version
• Token interface renamed optional savings to vault and added optional saving
• Added rewards task to get COMP and stkAAVE stats

Version 2.1.0

Implement fPools and new boosted vaults

• Upgrades solc version to 0.8.2
• develop and deploy feeder pools as specified in https://mips.mstable.org/MIPS/mip-9

Version 2.0.0

Implement mAsset v2

• Upgrades solc version to 0.8.0
• Migrates necessary files to 0.8.0
• Refactors test suite to use hardhat natively
• Develop, test and deploy new mAsset: mBTC

Breaking changes ⚠️

• Missing a number of key contracts that have not yet been imported to solc 0.8.0

This could be used in parallel with package v1.5.0

Version 1.5.0

Add tokenised savings contract and boosted savings vault

Implements interest bearing mAsset implementation. See MIP-5 for further details.

Implemented here: #118

Version 1.4.1

Add build output to package

Version 1.4.0

Gas reductions & Aave V2

Massively reduces gas costs across core system functions MINT, SWAP, REDEEM and SAVE. See MIP-3 and MIP-4 for details.

Implemented here: #120

Version 1.3.1

Liquidator-tweak

Adds a minimum price for a given SellToken to avoid a malicious attack on the capital.

Submitted via mStable Bug Bounty: Kevin - Bug bounty response.pdf

Implemented here: #114

Version 1.3.0

Liquidator

Sells COMP for mUSD and streams to the savings account on a second by second basis.

Proposed here: https://mips.mstable.org/MIPS/mip-2

Community voted on here and here

Implemented here: #113

Version 1.2.1

mStable Helper

See #86

This release sees the addition of the MStableHelper.sol, containing a few useful functions for use in minting, swapping, redeeming and saving.