diff --git a/changelog_unreleased/typescript/11426.md b/changelog_unreleased/typescript/11426.md
new file mode 100644
index 000000000..ea8be9cde
--- /dev/null
+++ b/changelog_unreleased/typescript/11426.md
@@ -0,0 +1,45 @@
+#### Support TypeScript 4.4 (#11426 by @sosukesuzuki)
+
+Support [TypeScript 4.4](https://devblogs.microsoft.com/typescript/announcing-typescript-4-4/)!
+
+##### [`static` Blocks in Classes](https://devblogs.microsoft.com/typescript/announcing-typescript-4-4/#static-blocks)
+
+Class Static Blocks syntax is a Stage 3 ECMAScript proposal. See https://github.com/tc39/proposal-class-static-block for more details.
+
+<!-- prettier-ignore -->
+```tsx
+// Input
+class Foo {
+  static count = 0;
+
+  // This is a static block:
+  static {
+    if (someCondition()) {
+      Foo.count++;
+    }
+  }
+}
+
+// Prettier stable
+SyntaxError: Declaration expected. (5:9)
+  3 |
+  4 |   // This is a static block:
+> 5 |   static {
+    |         ^
+  6 |     if (someCondition()) {
+  7 |       Foo.count++;
+  8 |     }
+
+// Prettier main
+class Foo {
+  static count = 0;
+
+  // This is a static block:
+  static {
+    if (someCondition()) {
+      Foo.count++;
+    }
+  }
+}
+
+```
diff --git a/package.json b/package.json
index 4e3b88b3f..cf1045d17 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@babel/parser": "7.15.3",
     "@glimmer/syntax": "0.80.0",
     "@iarna/toml": "2.2.5",
-    "@typescript-eslint/typescript-estree": "4.29.3",
+    "@typescript-eslint/typescript-estree": "4.30.0",
     "angular-estree-parser": "2.5.0",
     "angular-html-parser": "1.8.0",
     "camelcase": "6.2.0",
diff --git a/tests/format/typescript/static-blocks/__snapshots__/jsfmt.spec.js.snap b/tests/format/typescript/static-blocks/__snapshots__/jsfmt.spec.js.snap
new file mode 100644
index 000000000..4b93a1db6
--- /dev/null
+++ b/tests/format/typescript/static-blocks/__snapshots__/jsfmt.spec.js.snap
@@ -0,0 +1,116 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`multiple.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class Foo {
+  static prop = 1
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+}
+
+=====================================output=====================================
+class Foo {
+  static prop = 1;
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+}
+
+================================================================================
+`;
+
+exports[`nested.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+function foo () {
+  return class {
+    static foo = 1;
+    static {
+      const c = class {
+        static bar = 2;
+        static {
+          // do
+        }
+      }
+    }
+  }
+}
+
+=====================================output=====================================
+function foo() {
+  return class {
+    static foo = 1;
+    static {
+      const c = class {
+        static bar = 2;
+        static {
+          // do
+        }
+      };
+    }
+  };
+}
+
+================================================================================
+`;
+
+exports[`static-blocks.ts format 1`] = `
+====================================options=====================================
+parsers: ["typescript", "babel-ts"]
+printWidth: 80
+                                                                                | printWidth
+=====================================input======================================
+class Foo {
+  static #count = 0;
+
+  get count() {
+    return Foo.#count;
+  }
+
+  static {
+    try {
+      const lastInstances = loadLastInstances();
+      Foo.#count += lastInstances.length;
+    }
+    catch {}
+  }
+}
+
+=====================================output=====================================
+class Foo {
+  static #count = 0;
+
+  get count() {
+    return Foo.#count;
+  }
+
+  static {
+    try {
+      const lastInstances = loadLastInstances();
+      Foo.#count += lastInstances.length;
+    } catch {}
+  }
+}
+
+================================================================================
+`;
diff --git a/tests/format/typescript/static-blocks/jsfmt.spec.js b/tests/format/typescript/static-blocks/jsfmt.spec.js
new file mode 100644
index 000000000..aff59cd2f
--- /dev/null
+++ b/tests/format/typescript/static-blocks/jsfmt.spec.js
@@ -0,0 +1 @@
+run_spec(__dirname, ["typescript", "babel-ts"]);
diff --git a/tests/format/typescript/static-blocks/multiple.ts b/tests/format/typescript/static-blocks/multiple.ts
new file mode 100644
index 000000000..ebd64568e
--- /dev/null
+++ b/tests/format/typescript/static-blocks/multiple.ts
@@ -0,0 +1,12 @@
+class Foo {
+  static prop = 1
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+  static {
+    console.log(Foo.prop++);
+  }
+}
diff --git a/tests/format/typescript/static-blocks/nested.ts b/tests/format/typescript/static-blocks/nested.ts
new file mode 100644
index 000000000..0b6ee3c44
--- /dev/null
+++ b/tests/format/typescript/static-blocks/nested.ts
@@ -0,0 +1,13 @@
+function foo () {
+  return class {
+    static foo = 1;
+    static {
+      const c = class {
+        static bar = 2;
+        static {
+          // do
+        }
+      }
+    }
+  }
+}
diff --git a/tests/format/typescript/static-blocks/static-blocks.ts b/tests/format/typescript/static-blocks/static-blocks.ts
new file mode 100644
index 000000000..066b4a09c
--- /dev/null
+++ b/tests/format/typescript/static-blocks/static-blocks.ts
@@ -0,0 +1,15 @@
+class Foo {
+  static #count = 0;
+
+  get count() {
+    return Foo.#count;
+  }
+
+  static {
+    try {
+      const lastInstances = loadLastInstances();
+      Foo.#count += lastInstances.length;
+    }
+    catch {}
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index 56f5d920a..9f88d4fe7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1762,10 +1762,10 @@
   resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.26.1.tgz#9e7c523f73c34b04a765e4167ca5650436ef1d38"
   integrity sha512-STyMPxR3cS+LaNvS8yK15rb8Y0iL0tFXq0uyl6gY45glyI7w0CsyqyEXl/Fa0JlQy+pVANeK3sbwPneCbWE7yg==
 
-"@typescript-eslint/types@4.29.3":
-  version "4.29.3"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.29.3.tgz#d7980c49aef643d0af8954c9f14f656b7fd16017"
-  integrity sha512-s1eV1lKNgoIYLAl1JUba8NhULmf+jOmmeFO1G5MN/RBCyyzg4TIOfIOICVNC06lor+Xmy4FypIIhFiJXOknhIg==
+"@typescript-eslint/types@4.30.0":
+  version "4.30.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.30.0.tgz#fb9d9b0358426f18687fba82eb0b0f869780204f"
+  integrity sha512-YKldqbNU9K4WpTNwBqtAerQKLLW/X2A/j4yw92e3ZJYLx+BpKLeheyzoPfzIXHfM8BXfoleTdiYwpsvVPvHrDw==
 
 "@typescript-eslint/typescript-estree@4.26.1":
   version "4.26.1"
@@ -1780,13 +1780,13 @@
     semver "^7.3.5"
     tsutils "^3.21.0"
 
-"@typescript-eslint/typescript-estree@4.29.3":
-  version "4.29.3"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.29.3.tgz#1bafad610015c4ded35c85a70b6222faad598b40"
-  integrity sha512-45oQJA0bxna4O5TMwz55/TpgjX1YrAPOI/rb6kPgmdnemRZx/dB0rsx+Ku8jpDvqTxcE1C/qEbVHbS3h0hflag==
+"@typescript-eslint/typescript-estree@4.30.0":
+  version "4.30.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.30.0.tgz#ae57833da72a753f4846cd3053758c771670c2ac"
+  integrity sha512-6WN7UFYvykr/U0Qgy4kz48iGPWILvYL34xXJxvDQeiRE018B7POspNRVtAZscWntEPZpFCx4hcz/XBT+erenfg==
   dependencies:
-    "@typescript-eslint/types" "4.29.3"
-    "@typescript-eslint/visitor-keys" "4.29.3"
+    "@typescript-eslint/types" "4.30.0"
+    "@typescript-eslint/visitor-keys" "4.30.0"
     debug "^4.3.1"
     globby "^11.0.3"
     is-glob "^4.0.1"
@@ -1801,12 +1801,12 @@
     "@typescript-eslint/types" "4.26.1"
     eslint-visitor-keys "^2.0.0"
 
-"@typescript-eslint/visitor-keys@4.29.3":
-  version "4.29.3"
-  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.29.3.tgz#c691760a00bd86bf8320d2a90a93d86d322f1abf"
-  integrity sha512-MGGfJvXT4asUTeVs0Q2m+sY63UsfnA+C/FDgBKV3itLBmM9H0u+URcneePtkd0at1YELmZK6HSolCqM4Fzs6yA==
+"@typescript-eslint/visitor-keys@4.30.0":
+  version "4.30.0"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.30.0.tgz#a47c6272fc71b0c627d1691f68eaecf4ad71445e"
+  integrity sha512-pNaaxDt/Ol/+JZwzP7MqWc8PJQTUhZwoee/PVlQ+iYoYhagccvoHnC9e4l+C/krQYYkENxznhVSDwClIbZVxRw==
   dependencies:
-    "@typescript-eslint/types" "4.29.3"
+    "@typescript-eslint/types" "4.30.0"
     eslint-visitor-keys "^2.0.0"
 
 "@webassemblyjs/ast@1.11.1":