feat: add Sepolia testnet

packages/dev-frontend/src/App.tsx

@@ -1,6 +1,6 @@
 import React from "react";
 import { createClient, WagmiConfig } from "wagmi";
-import { mainnet, goerli, localhost } from "wagmi/chains";
+import { mainnet, goerli, sepolia, localhost } from "wagmi/chains";
 import { ConnectKitProvider, getDefaultClient } from "connectkit";
 import { Flex, Heading, ThemeProvider, Paragraph, Link } from "theme-ui";
 
@@ -49,7 +49,7 @@ const UnsupportedMainnetFallback: React.FC = () => (
       <Icon name="exclamation-triangle" /> This app is for testing purposes only.
     </Heading>
 
-    <Paragraph sx={{ mb: 3 }}>Please change your network to Görli.</Paragraph>
+    <Paragraph sx={{ mb: 3 }}>Please change your network to Görli or Sepolia.</Paragraph>
 
     <Paragraph>
       If you'd like to use the Liquity Protocol on mainnet, please pick a frontend{" "}
@@ -74,7 +74,7 @@ const UnsupportedNetworkFallback: React.FC = () => (
     <Heading sx={{ mb: 3 }}>
       <Icon name="exclamation-triangle" /> Liquity is not supported on this network.
     </Heading>
-    Please switch to mainnet or Görli.
+    Please switch to mainnet, Görli or Sepolia.
   </Flex>
 );
 
@@ -93,8 +93,8 @@ const App = () => {
                 isDemoMode || import.meta.env.MODE === "test"
                   ? [localhost]
                   : config.value.testnetOnly
-                  ? [goerli]
-                  : [mainnet, goerli],
+                  ? [goerli, sepolia]
+                  : [mainnet, goerli, sepolia],
               walletConnectProjectId: config.value.walletConnectProjectId,
               infuraId: config.value.infuraApiKey,
               alchemyId: config.value.alchemyApiKey

packages/dev-frontend/src/providers/BatchingProvider.ts

@@ -11,7 +11,8 @@ const multicallAddress = {
   3: "0x53C43764255c17BD724F74c4eF150724AC50a3ed",
   4: "0x42Ad527de7d4e9d9d011aC45B31D8551f8Fe9821",
   5: "0x77dCa2C955b15e9dE4dbBCf1246B4B85b651e50e",
-  42: "0x2cc8688C5f75E365aaEEb4ea8D6a480405A48D2A"
+  42: "0x2cc8688C5f75E365aaEEb4ea8D6a480405A48D2A",
+  11155111: "0xcA11bde05977b3631167028862bE2a173976CA11"
 };
 
 const hasMulticall = (chainId: number): chainId is keyof typeof multicallAddress =>

packages/lib-ethers/deployments/default/sepolia.json

@@ -0,0 +1,32 @@
+{
+  "chainId": 11155111,
+  "version": "a0948b633b21ca147471a705e2d07f825f2f2292",
+  "deploymentDate": 1696838376000,
+  "bootstrapPeriod": 1209600,
+  "totalStabilityPoolLQTYReward": "32000000",
+  "liquidityMiningLQTYRewardRate": "0.257201646090534979",
+  "_priceFeedIsTestnet": false,
+  "_uniTokenIsMock": true,
+  "_isDev": false,
+  "startBlock": 4455303,
+  "addresses": {
+    "activePool": "0x7b6c5109F353236294123B0a55896b760708008c",
+    "borrowerOperations": "0xe093bC0a552C5cBbE0a07C0094F4AfB6204aa1b9",
+    "troveManager": "0x9431a9fa3300Cd5Db4733283A864Db3347d89311",
+    "collSurplusPool": "0xA242Df71374A1a18dB9487823105c0e546c2F57e",
+    "communityIssuance": "0xf1f7A8AC7CD2e14fE058d23653100fFb781bF338",
+    "defaultPool": "0x3a4C257ad04A0cae9C0b5BbFb9c2D35fb1F9a0eC",
+    "hintHelpers": "0xa2d566765185Ba047093D443C01bF0DD52E6c1A3",
+    "lockupContractFactory": "0x42e6423F2582d5C6FB1242acBde8dC6dFe4C7659",
+    "lqtyStaking": "0x8a45B418ea7a2896de7b14019ef3030249A8a630",
+    "priceFeed": "0x92Ef9191856bEa5cef75c9c9bb2C6F1593165aaa",
+    "sortedTroves": "0x0950ec7965CEf62489D1083763a9a153AC1a0548",
+    "stabilityPool": "0x32F32E36B1D812357C8C50EAF97363c13ea46a68",
+    "gasPool": "0x2d7458F23950456eC944B39c07776E0CD7249FE1",
+    "unipool": "0xb04E34D9Cb45895Ec38418cc2f8ea98cc0A0fb37",
+    "lusdToken": "0xF9D30b476Bd59b06cF5E14de888035b328E01FcE",
+    "lqtyToken": "0x351d6ffc84EA65D2949a221B17385226b06764AF",
+    "multiTroveGetter": "0xA975b76c81686DD2992095Cb9149A3392c63F248",
+    "uniToken": "0x9dA26Cd36e61CF4642Ad1169a6aA0c466ce7eE00"
+  }
+}

packages/lib-ethers/hardhat.config.ts

@@ -81,6 +81,10 @@ const oracleAddresses = {
   goerli: {
     chainlink: "0xD4a33860578De61DBAbDc8BFdb98FD742fA7028e",
     tellor: "0x51c59c6cAd28ce3693977F2feB4CfAebec30d8a2"
+  },
+  sepolia: {
+    chainlink: "0x694AA1769357215DE4FAC081bf1f309aDC325306",
+    tellor: "0x80fc34a2f9FfE86F41580F47368289C402DEc660"
   }
 };
 
@@ -92,7 +96,8 @@ const wethAddresses = {
   ropsten: "0xc778417E063141139Fce010982780140Aa0cD5Ab",
   rinkeby: "0xc778417E063141139Fce010982780140Aa0cD5Ab",
   goerli: "0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6",
-  kovan: "0xd0A1E359811322d97991E03f863a0C30C2cF029C"
+  kovan: "0xd0A1E359811322d97991E03f863a0C30C2cF029C",
+  sepolia: "0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14"
 };
 
 const hasWETH = (network: string): network is keyof typeof wethAddresses => network in wethAddresses;
@@ -120,6 +125,7 @@ const config: HardhatUserConfig = {
     ...infuraNetwork("rinkeby"),
     ...infuraNetwork("goerli"),
     ...infuraNetwork("kovan"),
+    ...infuraNetwork("sepolia"),
     ...infuraNetwork("mainnet"),
 
     kiln: {

packages/lib-ethers/src/EthersLiquityConnection.ts

@@ -10,6 +10,7 @@ import rinkeby from "../deployments/rinkeby.json";
 import ropsten from "../deployments/ropsten.json";
 import mainnet from "../deployments/mainnet.json";
 import kiln from "../deployments/kiln.json";
+import sepolia from "../deployments/sepolia.json";
 
 import { numberify, panic } from "./_utils";
 import { EthersProvider, EthersSigner } from "./types";
@@ -34,6 +35,7 @@ const deployments: {
   [goerli.chainId]: goerli,
   [kovan.chainId]: kovan,
   [kiln.chainId]: kiln,
+  [sepolia.chainId]: sepolia,
 
   ...(dev !== null ? { [dev.chainId]: dev } : {})
 };