add deployed addresses

Author: NoahZinsmeister

Diff for: README.md

@@ -4,17 +4,31 @@ This is the canonical staking contract designed for [Uniswap V3](https://github.
 
 ## Deployments
 
-The staker at tag v1.0.0 is deployed and verified on Etherscan for on all networks at the address: `0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d`
-
-| Network          | Explorer                                                                                |
-|------------------|-----------------------------------------------------------------------------------------|
-| Mainnet          | https://etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code            |
-| Rinkeby          | https://rinkeby.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code    |
-| Kovan            | https://kovan.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code      |
-| Ropsten          | https://ropsten.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code    |
-| Goerli           | https://goerli.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code     |
-| Arbitrum Rinkeby | https://testnet.arbiscan.io/address/0x1f98407aab862cddef78ed252d6f557aa5b0f00d          |
-| Arbitrum One     | https://arbiscan.io/address/0x1f98407aab862cddef78ed252d6f557aa5b0f00d                  |
+Note that the v1.0.0 release is susceptible to a [high-difficulty, never-exploited vulnerability](https://github.com/Uniswap/v3-staker/issues/219). For this reason, please use the v1.0.1 release, deployed at the following addresses:
+
+| Network          | Explorer                                                                                 |
+| ---------------- | ---------------------------------------------------------------------------------------- |
+| Mainnet          | https://etherscan.io/address/0xA9bf398e74Da1Ac6F5c4CB67Ab8937c10a1e454d                  |
+| Rinkeby          | https://rinkeby.etherscan.io/address/0xa9bf398e74da1ac6f5c4cb67ab8937c10a1e454d          |
+| Kovan            | https://kovan.etherscan.io/address/0xa9bf398e74da1ac6f5c4cb67ab8937c10a1e454d            |
+| Ropsten          | https://ropsten.etherscan.io/address/0xa9bf398e74da1ac6f5c4cb67ab8937c10a1e454d          |
+| Goerli           | https://goerli.etherscan.io/address/0xa9bf398e74da1ac6f5c4cb67ab8937c10a1e454d           |
+| Arbitrum Rinkeby | https://testnet.arbiscan.io/address/0xA9bf398e74Da1Ac6F5c4CB67Ab8937c10a1e454d           |
+| Arbitrum One     | https://arbiscan.io/address/0xA9bf398e74Da1Ac6F5c4CB67Ab8937c10a1e454d                   |
+| Optimism         | https://optimistic.etherscan.io/address/0x62094CdA36dd8945a2c158A4c6c8865c5B34FEf9       |
+| Optimism Kovan   | https://kovan-optimistic.etherscan.io/address/0xA5644E29708357803b5A882D272c41cC0dF92B34 |
+
+DEPRECATED: For historical verification, the staker at tag v1.0.0 is deployed and verified on Etherscan for on all networks at the address: `0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d`
+
+| Network          | Explorer                                                                             |
+| ---------------- | ------------------------------------------------------------------------------------ |
+| Mainnet          | https://etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code         |
+| Rinkeby          | https://rinkeby.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code |
+| Kovan            | https://kovan.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code   |
+| Ropsten          | https://ropsten.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code |
+| Goerli           | https://goerli.etherscan.io/address/0x1f98407aaB862CdDeF78Ed252D6f557aA5b0f00d#code  |
+| Arbitrum Rinkeby | https://testnet.arbiscan.io/address/0x1f98407aab862cddef78ed252d6f557aa5b0f00d       |
+| Arbitrum One     | https://arbiscan.io/address/0x1f98407aab862cddef78ed252d6f557aa5b0f00d               |
 
 ## Links: