diff --git a/.github/funding.yml b/.github/funding.yml
deleted file mode 100644
index 5c3b91e..0000000
--- a/.github/funding.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-github: sindresorhus
-open_collective: sindresorhus
-tidelift: npm/eslint-config-xo
-custom: https://sindresorhus.com/donate
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3b8aa86..6cb6898 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,8 +14,8 @@ jobs:
           - 14
           - 12
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install
diff --git a/index.js b/index.js
index c1623de..f672ef3 100644
--- a/index.js
+++ b/index.js
@@ -40,7 +40,12 @@ module.exports = {
 		],
 		'no-empty-static-block': 'error',
 		'no-ex-assign': 'error',
-		'no-extra-boolean-cast': 'error',
+		'no-extra-boolean-cast': [
+			'error',
+			{
+				enforceForInnerExpressions: true
+			},
+		],
 		// Disabled because of https://github.com/eslint/eslint/issues/6028
 		// 'no-extra-parens': [
 		// 	'error',
@@ -222,9 +227,18 @@ module.exports = {
 		'no-restricted-globals': [
 			'error',
 			'event',
+			// TODO: Enable this in 2025.
+			// {
+			// 	name: 'Buffer',
+			// 	message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
+			// },
+			{
+				name: 'atob',
+				message: 'This API is deprecated. Use https://github.com/sindresorhus/uint8array-extras instead.',
+			},
 			{
-				name: 'Buffer',
-				message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
+				name: 'btoa',
+				message: 'This API is deprecated. Use https://github.com/sindresorhus/uint8array-extras instead.',
 			},
 		],
 		'no-shadow-restricted-names': 'error',
@@ -239,6 +253,7 @@ module.exports = {
 			'error',
 			{
 				vars: 'all',
+				varsIgnorePattern: /^_/.source,
 				args: 'after-used',
 				ignoreRestSiblings: true,
 				argsIgnorePattern: /^_/.source,
@@ -256,14 +271,15 @@ module.exports = {
 			'sys',
 			'querystring',
 			'colors',
-			{
-				name: 'buffer',
-				message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
-			},
-			{
-				name: 'node:buffer',
-				message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
-			},
+			// TODO: Enable this in 2025.
+			// {
+			// 	name: 'buffer',
+			// 	message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
+			// },
+			// {
+			// 	name: 'node:buffer',
+			// 	message: 'Use Uint8Array instead. See: https://sindresorhus.com/blog/goodbye-nodejs-buffer',
+			// },
 		],
 		'array-bracket-newline': [
 			'error',
@@ -362,24 +378,34 @@ module.exports = {
 			'unix',
 		],
 		'lines-between-class-members': [
+			'error',
+			{
+				enforce: [
+					{
+						blankLine: 'always',
+						prev: '*',
+						next: 'method',
+					},
+					{
+						blankLine: 'always',
+						prev: 'method',
+						next: 'field',
+					},
+					{
+						blankLine: 'never',
+						prev: 'field',
+						next: 'field',
+					},
+				],
+			},
+		],
+		'logical-assignment-operators': [
 			'error',
 			'always',
 			{
-				// Workaround to allow class fields to not have lines between them.
-				// TODO: Get ESLint to add an option to ignore class fields.
-				exceptAfterSingleLine: true,
+				enforceForIfStatements: true,
 			},
 		],
-
-		// TODO: Enable this again when targeting Node.js 16.
-		// 'logical-assignment-operators': [
-		// 	'error',
-		// 	'always',
-		// 	{
-		// 		enforceForIfStatements: true,
-		// 	},
-		// ],
-
 		'max-depth': 'warn',
 		'max-len': [
 			'warn',
@@ -642,10 +668,7 @@ module.exports = {
 			},
 		],
 		'prefer-numeric-literals': 'error',
-
-		// TODO: Enable when targeting Node.js 16.
-		// 'prefer-object-has-own': 'error',
-
+		'prefer-object-has-own': 'error',
 		'prefer-rest-params': 'error',
 		'prefer-spread': 'error',
 		'require-yield': 'error',
diff --git a/package.json b/package.json
index 9fd1ad6..17254f1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "eslint-config-xo",
-	"version": "0.43.1",
+	"version": "0.45.0",
 	"description": "ESLint shareable config for XO",
 	"license": "MIT",
 	"repository": "xojs/eslint-config-xo",
@@ -10,8 +10,9 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"sideEffects": false,
 	"engines": {
-		"node": ">=12"
+		"node": ">=18"
 	},
 	"scripts": {
 		"test": "eslint . && ava"
@@ -53,10 +54,10 @@
 	},
 	"devDependencies": {
 		"ava": "^2.4.0",
-		"eslint": "^8.50.0",
+		"eslint": "^8.56.0",
 		"is-plain-obj": "^3.0.0"
 	},
 	"peerDependencies": {
-		"eslint": ">=8.50.0"
+		"eslint": ">=8.56.0"
 	}
 }
diff --git a/readme.md b/readme.md
index 5284bf1..8c84e8a 100644
--- a/readme.md
+++ b/readme.md
@@ -10,8 +10,8 @@ See [eslint-plugin-unicorn](https://github.com/sindresorhus/eslint-plugin-unicor
 
 ## Install
 
-```
-$ npm install --save-dev eslint-config-xo
+```sh
+npm install --save-dev eslint-config-xo
 ```
 
 ## Usage