diff --git a/packages/definitions-parser/package.json b/packages/definitions-parser/package.json
index 9f421e6cd6..bb0ccb4caf 100644
--- a/packages/definitions-parser/package.json
+++ b/packages/definitions-parser/package.json
@@ -20,6 +20,7 @@
   },
   "dependencies": {
     "@definitelytyped/header-parser": "^0.0.23-next.0",
+    "@definitelytyped/typescript-versions": "0.0.23-next.0",
     "@definitelytyped/utils": "^0.0.23-next.0",
     "@types/node": "^12.12.29",
     "fs-extra": "^8.1.0",
diff --git a/packages/definitions-parser/src/lib/definition-parser.ts b/packages/definitions-parser/src/lib/definition-parser.ts
index 381779e89d..6de84eb76a 100644
--- a/packages/definitions-parser/src/lib/definition-parser.ts
+++ b/packages/definitions-parser/src/lib/definition-parser.ts
@@ -24,9 +24,9 @@ import {
   join,
   flatMap,
   unique,
-  unmangleScopedPackage,
-  TypeScriptVersion
+  unmangleScopedPackage
 } from "@definitelytyped/utils";
+import { TypeScriptVersion } from "@definitelytyped/typescript-versions";
 
 function matchesVersion(typingsDataRaw: TypingsDataRaw, version: TypingVersion, considerLibraryMinorVersion: boolean) {
   return (
diff --git a/packages/definitions-parser/src/packages.ts b/packages/definitions-parser/src/packages.ts
index a0d405c3a5..079c62a362 100644
--- a/packages/definitions-parser/src/packages.ts
+++ b/packages/definitions-parser/src/packages.ts
@@ -1,14 +1,7 @@
 import assert = require("assert");
 import { Author } from "@definitelytyped/header-parser";
-import {
-  FS,
-  mapValues,
-  assertSorted,
-  unmangleScopedPackage,
-  Semver,
-  TypeScriptVersion,
-  AllTypeScriptVersion
-} from "@definitelytyped/utils";
+import { FS, mapValues, assertSorted, unmangleScopedPackage, Semver } from "@definitelytyped/utils";
+import { AllTypeScriptVersion, TypeScriptVersion } from "@definitelytyped/typescript-versions";
 import { readDataFile } from "./data-file";
 import { scopeName, typesDirectoryName } from "./lib/settings";
 import { parseVersionFromDirectoryName } from "./parse-definitions";
diff --git a/packages/header-parser/package.json b/packages/header-parser/package.json
index b01a0cb844..ea251b3cef 100644
--- a/packages/header-parser/package.json
+++ b/packages/header-parser/package.json
@@ -20,7 +20,7 @@
     "url": "https://github.com/DefinitelyTyped/tools/issues"
   },
   "dependencies": {
-    "@definitelytyped/utils": "^0.0.23-next.0",
+    "@definitelytyped/typescript-versions": "0.0.23-next.0",
     "@types/parsimmon": "^1.10.1",
     "parsimmon": "^1.13.0"
   },
diff --git a/packages/header-parser/src/index.ts b/packages/header-parser/src/index.ts
index ae68af4c1e..55467a978c 100644
--- a/packages/header-parser/src/index.ts
+++ b/packages/header-parser/src/index.ts
@@ -1,5 +1,5 @@
 import pm = require("parsimmon");
-import { AllTypeScriptVersion, TypeScriptVersion } from "@definitelytyped/utils";
+import { AllTypeScriptVersion, TypeScriptVersion } from "@definitelytyped/typescript-versions";
 
 /*
 
@@ -36,10 +36,6 @@ export interface ParseError {
   readonly expected: readonly string[];
 }
 
-export function isTypeScriptVersion(str: string): str is TypeScriptVersion {
-  return TypeScriptVersion.all.includes(str as TypeScriptVersion);
-}
-
 export function makeTypesVersionsForPackageJson(typesVersions: readonly TypeScriptVersion[]): unknown {
   if (typesVersions.length === 0) {
     return undefined;
diff --git a/packages/publisher/package-lock.json b/packages/publisher/package-lock.json
index b4ce4f20bd..cea1277fd3 100644
--- a/packages/publisher/package-lock.json
+++ b/packages/publisher/package-lock.json
@@ -663,7 +663,7 @@
         "json-stable-stringify": "^1.0.1",
         "strip-json-comments": "^2.0.1",
         "tslint": "5.14.0",
-        "typescript": "^3.9.0-dev.20200413",
+        "typescript": "^3.9.0-dev.20200414",
         "yargs": "^15.1.0"
       },
       "dependencies": {
@@ -5083,9 +5083,9 @@
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
     "typescript": {
-      "version": "3.9.0-dev.20200413",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.0-dev.20200413.tgz",
-      "integrity": "sha512-wpPljcRc3uLTVpQ8mtKTkS42ipVnW1E7lU5iII+JSKaUDH1ymeo3duvMz8o2sCRUDoZR0SE0SLcinaZ1q4gD7A=="
+      "version": "3.9.0-dev.20200414",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.0-dev.20200414.tgz",
+      "integrity": "sha512-wqAPcJUX4SPnySVpP58Vh09b4ncxxHdwP9HaPP9YTaOGHS3PyychJcbvMBqlKVXdvBvhHoacVDSB0Agn2zu4hA=="
     },
     "underscore": {
       "version": "1.10.2",
diff --git a/packages/publisher/package.json b/packages/publisher/package.json
index 351c3d6612..faeff7b7f7 100644
--- a/packages/publisher/package.json
+++ b/packages/publisher/package.json
@@ -8,6 +8,7 @@
   "dependencies": {
     "@definitelytyped/definitions-parser": "^0.0.23-next.0",
     "@definitelytyped/header-parser": "^0.0.23-next.0",
+    "@definitelytyped/typescript-versions": "0.0.23-next.0",
     "@definitelytyped/utils": "^0.0.23-next.0",
     "@octokit/rest": "^16.1.0",
     "adal-node": "^0.1.22",
diff --git a/packages/publisher/src/lib/package-publisher.ts b/packages/publisher/src/lib/package-publisher.ts
index 68aac3a693..5e73b69af8 100644
--- a/packages/publisher/src/lib/package-publisher.ts
+++ b/packages/publisher/src/lib/package-publisher.ts
@@ -1,12 +1,5 @@
 import assert = require("assert");
-import {
-  Logger,
-  joinPaths,
-  readFileAndWarn,
-  TypeScriptVersion,
-  NpmPublishClient,
-  Registry
-} from "@definitelytyped/utils";
+import { Logger, joinPaths, readFileAndWarn, NpmPublishClient, Registry } from "@definitelytyped/utils";
 import { NotNeededPackage, AnyPackage } from "@definitelytyped/definitions-parser";
 import { ChangedTyping } from "./versions";
 import { outputDirectory } from "../util/util";
diff --git a/packages/typescript-versions/README.md b/packages/typescript-versions/README.md
new file mode 100644
index 0000000000..6828729237
--- /dev/null
+++ b/packages/typescript-versions/README.md
@@ -0,0 +1,3 @@
+# @definitelytyped/typescript-versions
+
+List of supported TypeScript versions.
diff --git a/packages/typescript-versions/package.json b/packages/typescript-versions/package.json
new file mode 100644
index 0000000000..14510fd5d8
--- /dev/null
+++ b/packages/typescript-versions/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "@definitelytyped/typescript-versions",
+  "version": "0.0.23-next.0",
+  "description": "List of supported TypeScript versions",
+  "author": "Andrew Branch <andrew@wheream.io>",
+  "homepage": "https://github.com/microsoft/DefinitelyTyped-tools#readme",
+  "license": "MIT",
+  "main": "dist/index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/microsoft/DefinitelyTyped-tools.git"
+  },
+  "bugs": {
+    "url": "https://github.com/microsoft/DefinitelyTyped-tools/issues"
+  }
+}
diff --git a/packages/typescript-versions/src/index.ts b/packages/typescript-versions/src/index.ts
new file mode 100644
index 0000000000..1a8652ae78
--- /dev/null
+++ b/packages/typescript-versions/src/index.ts
@@ -0,0 +1,126 @@
+import assert from "assert";
+
+/*
+
+  # How to add new version of Typescript #
+
+  For the RC:
+
+  1. Add a new version to the end of `supportedTags`.
+  2. Update failing tests.
+  3. Publish and update dependents.
+
+  For the release:
+
+  1. Add new versions to the end of `TypeScriptVersion` and `supported`.
+  2. Update failing tests.
+  3. Publish and update dependents.
+
+  # How to deprecate versions on Definitely Typed #
+
+  1. Move versions from `TypeScriptVersion` to `UnsupportedTypeScriptVersion`.
+  2. Move versions from `supported` to `unsupported`.
+  3. Remove entry from `supportedTags`.
+  4. Update failing tests.
+  5. Publish and update dependents.
+
+*/
+
+/** Parseable but unsupported TypeScript versions. */
+export type UnsupportedTypeScriptVersion = "2.0" | "2.1" | "2.2" | "2.3" | "2.4" | "2.5" | "2.6" | "2.7";
+/**
+ * Parseable and supported TypeScript versions.
+ * Only add to this list if we will support this version on DefinitelyTyped.
+ */
+export type TypeScriptVersion =
+  | "2.8"
+  | "2.9"
+  | "3.0"
+  | "3.1"
+  | "3.2"
+  | "3.3"
+  | "3.4"
+  | "3.5"
+  | "3.6"
+  | "3.7"
+  | "3.8"
+  | "3.9";
+
+export type AllTypeScriptVersion = UnsupportedTypeScriptVersion | TypeScriptVersion;
+
+export namespace TypeScriptVersion {
+  export const supported: readonly TypeScriptVersion[] = [
+    "2.8",
+    "2.9",
+    "3.0",
+    "3.1",
+    "3.2",
+    "3.3",
+    "3.4",
+    "3.5",
+    "3.6",
+    "3.7",
+    "3.8",
+    "3.9"
+  ];
+  export const unsupported: readonly UnsupportedTypeScriptVersion[] = [
+    "2.0",
+    "2.1",
+    "2.2",
+    "2.3",
+    "2.4",
+    "2.5",
+    "2.6",
+    "2.7"
+  ];
+  export const all: readonly AllTypeScriptVersion[] = [...unsupported, ...supported];
+  export const lowest = supported[0];
+  /** Latest version that may be specified in a `// TypeScript Version:` header. */
+  export const latest = supported[supported.length - 1];
+
+  /** @deprecated */
+  export function isPrerelease(_version: TypeScriptVersion): boolean {
+    return false;
+  }
+
+  export function isSupported(v: AllTypeScriptVersion): v is TypeScriptVersion {
+    return supported.indexOf(v as TypeScriptVersion) > -1;
+  }
+
+  export function range(min: TypeScriptVersion): readonly TypeScriptVersion[] {
+    return supported.filter(v => v >= min);
+  }
+
+  const supportedTags: readonly string[] = [
+    "ts2.8",
+    "ts2.9",
+    "ts3.0",
+    "ts3.1",
+    "ts3.2",
+    "ts3.3",
+    "ts3.4",
+    "ts3.5",
+    "ts3.6",
+    "ts3.7",
+    "ts3.8",
+    "ts3.9",
+    "latest"
+  ];
+
+  /** List of NPM tags that should be changed to point to the latest version. */
+  export function tagsToUpdate(v: TypeScriptVersion): readonly string[] {
+    const idx = supportedTags.indexOf(`ts${v}`);
+    assert(idx !== -1);
+    return supportedTags.slice(idx);
+  }
+
+  export function previous(v: TypeScriptVersion): TypeScriptVersion | undefined {
+    const index = supported.indexOf(v);
+    assert(index !== -1);
+    return index === 0 ? undefined : supported[index - 1];
+  }
+
+  export function isRedirectable(v: TypeScriptVersion): boolean {
+    return all.indexOf(v) >= all.indexOf("3.1");
+  }
+}
diff --git a/packages/typescript-versions/tsconfig.json b/packages/typescript-versions/tsconfig.json
new file mode 100644
index 0000000000..5285d28af2
--- /dev/null
+++ b/packages/typescript-versions/tsconfig.json
@@ -0,0 +1,8 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "rootDir": "src",
+    "outDir": "dist"
+  },
+  "include": ["src"]
+}
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 2c4257b55d..f74da5aee7 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -19,6 +19,7 @@
     "url": "https://github.com/DefinitelyTyped/tools/issues"
   },
   "dependencies": {
+    "@definitelytyped/typescript-versions": "0.0.23-next.0",
     "@types/node": "^12.12.29",
     "charm": "^1.0.2",
     "fs-extra": "^8.1.0",
diff --git a/packages/utils/src/typescript-installer.ts b/packages/utils/src/typescript-installer.ts
index 84180be2b4..5a1e16ca1f 100644
--- a/packages/utils/src/typescript-installer.ts
+++ b/packages/utils/src/typescript-installer.ts
@@ -3,135 +3,11 @@ import { exec } from "child_process";
 import * as fs from "fs-extra";
 import * as os from "os";
 import * as path from "path";
-
-/*
-
-  # How to add new version of Typescript #
-
-  For the RC:
-
-  1. Add a new version to the end of `supportedTags`.
-  2. Update failing tests.
-  3. Publish and update dependents.
-
-  For the release:
-
-  1. Add new versions to the end of `TypeScriptVersion` and `supported`.
-  2. Update failing tests.
-  3. Publish and update dependents.
-
-  # How to deprecate versions on Definitely Typed #
-
-  1. Move versions from `TypeScriptVersion` to `UnsupportedTypeScriptVersion`.
-  2. Move versions from `supported` to `unsupported`.
-  3. Remove entry from `supportedTags`.
-  4. Update failing tests.
-  5. Publish and update dependents.
-
-*/
-
-const installsDir = path.join(os.homedir(), ".dts", "typescript-installs");
-
-/** Parseable but unsupported TypeScript versions. */
-export type UnsupportedTypeScriptVersion = "2.0" | "2.1" | "2.2" | "2.3" | "2.4" | "2.5" | "2.6" | "2.7";
-/**
- * Parseable and supported TypeScript versions.
- * Only add to this list if we will support this version on DefinitelyTyped.
- */
-export type TypeScriptVersion =
-  | "2.8"
-  | "2.9"
-  | "3.0"
-  | "3.1"
-  | "3.2"
-  | "3.3"
-  | "3.4"
-  | "3.5"
-  | "3.6"
-  | "3.7"
-  | "3.8"
-  | "3.9";
-
-export type AllTypeScriptVersion = UnsupportedTypeScriptVersion | TypeScriptVersion;
+import { TypeScriptVersion } from "@definitelytyped/typescript-versions";
 
 export type TsVersion = TypeScriptVersion | "next" | "local";
 
-export namespace TypeScriptVersion {
-  export const supported: readonly TypeScriptVersion[] = [
-    "2.8",
-    "2.9",
-    "3.0",
-    "3.1",
-    "3.2",
-    "3.3",
-    "3.4",
-    "3.5",
-    "3.6",
-    "3.7",
-    "3.8",
-    "3.9"
-  ];
-  export const unsupported: readonly UnsupportedTypeScriptVersion[] = [
-    "2.0",
-    "2.1",
-    "2.2",
-    "2.3",
-    "2.4",
-    "2.5",
-    "2.6",
-    "2.7"
-  ];
-  export const all: readonly AllTypeScriptVersion[] = [...unsupported, ...supported];
-  export const lowest = supported[0];
-  /** Latest version that may be specified in a `// TypeScript Version:` header. */
-  export const latest = supported[supported.length - 1];
-
-  /** @deprecated */
-  export function isPrerelease(_version: TypeScriptVersion): boolean {
-    return false;
-  }
-
-  export function isSupported(v: AllTypeScriptVersion): v is TypeScriptVersion {
-    return supported.indexOf(v as TypeScriptVersion) > -1;
-  }
-
-  export function range(min: TypeScriptVersion): readonly TypeScriptVersion[] {
-    return supported.filter(v => v >= min);
-  }
-
-  const supportedTags: readonly string[] = [
-    "ts2.8",
-    "ts2.9",
-    "ts3.0",
-    "ts3.1",
-    "ts3.2",
-    "ts3.3",
-    "ts3.4",
-    "ts3.5",
-    "ts3.6",
-    "ts3.7",
-    "ts3.8",
-    "ts3.9",
-    "latest"
-  ];
-
-  /** List of NPM tags that should be changed to point to the latest version. */
-  export function tagsToUpdate(v: TypeScriptVersion): readonly string[] {
-    const idx = supportedTags.indexOf(`ts${v}`);
-    assert(idx !== -1);
-    return supportedTags.slice(idx);
-  }
-
-  export function previous(v: TypeScriptVersion): TypeScriptVersion | undefined {
-    const index = supported.indexOf(v);
-    assert(index !== -1);
-    return index === 0 ? undefined : supported[index - 1];
-  }
-
-  export function isRedirectable(v: TypeScriptVersion): boolean {
-    return all.indexOf(v) >= all.indexOf("3.1");
-  }
-}
+const installsDir = path.join(os.homedir(), ".dts", "typescript-installs");
 
 export async function installAllTypeScriptVersions() {
   for (const v of TypeScriptVersion.supported) {
diff --git a/packages/utils/tsconfig.json b/packages/utils/tsconfig.json
index 5285d28af2..fe02a862fd 100644
--- a/packages/utils/tsconfig.json
+++ b/packages/utils/tsconfig.json
@@ -4,5 +4,8 @@
     "rootDir": "src",
     "outDir": "dist"
   },
-  "include": ["src"]
+  "include": ["src"],
+  "references": [
+    { "path": "../typescript-versions" }
+  ]
 }
diff --git a/tsconfig.all.json b/tsconfig.all.json
index 46893de0aa..c56181b9f6 100644
--- a/tsconfig.all.json
+++ b/tsconfig.all.json
@@ -6,6 +6,7 @@
     { "path": "packages/header-parser" },
     { "path": "packages/perf" },
     { "path": "packages/publisher" },
+    { "path": "packages/typescript-versions" },
     { "path": "packages/utils" }
   ]
 }
\ No newline at end of file