diff --git a/package-lock.json b/package-lock.json
index d4d2c055ccfff..9b6200c37b4ac 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "typescript",
-    "version": "5.9.0",
+    "version": "6.0.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "typescript",
-            "version": "5.9.0",
+            "version": "6.0.0",
             "license": "Apache-2.0",
             "bin": {
                 "tsc": "bin/tsc",
diff --git a/package.json b/package.json
index ef2c80f8b91c2..19bf5eb4064f7 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "typescript",
     "author": "Microsoft Corp.",
     "homepage": "https://www.typescriptlang.org/",
-    "version": "5.9.0",
+    "version": "6.0.0",
     "license": "Apache-2.0",
     "description": "TypeScript is a language for application scale JavaScript development",
     "keywords": [
diff --git a/src/compiler/corePublic.ts b/src/compiler/corePublic.ts
index dc4843810a8a4..aef4d86b79a35 100644
--- a/src/compiler/corePublic.ts
+++ b/src/compiler/corePublic.ts
@@ -1,6 +1,6 @@
 // WARNING: The script `configurePrerelease.ts` uses a regexp to parse out these values.
 // If changing the text in this section, be sure to test `configurePrerelease` too.
-export const versionMajorMinor = "5.9";
+export const versionMajorMinor = "6.0";
 // The following is baselined as a literal template type without intervention
 /** The version of the TypeScript compiler release */
 export const version: string = `${versionMajorMinor}.0-dev`;
diff --git a/tests/baselines/reference/api/typescript.d.ts b/tests/baselines/reference/api/typescript.d.ts
index 87942520f2ab0..943ff5e152290 100644
--- a/tests/baselines/reference/api/typescript.d.ts
+++ b/tests/baselines/reference/api/typescript.d.ts
@@ -3646,7 +3646,7 @@ declare namespace ts {
             readDirectory(rootDir: string, extensions: readonly string[], excludes: readonly string[] | undefined, includes: readonly string[] | undefined, depth?: number): string[];
         }
     }
-    const versionMajorMinor = "5.9";
+    const versionMajorMinor = "6.0";
     /** The version of the TypeScript compiler release */
     const version: string;
     /**