diff --git a/.changeset/chilly-books-sneeze.md b/.changeset/chilly-books-sneeze.md
new file mode 100644
index 0000000000..a2d3ca1e04
--- /dev/null
+++ b/.changeset/chilly-books-sneeze.md
@@ -0,0 +1,6 @@
+---
+'@backstage/cli-node': minor
+'@backstage/cli': minor
+---
+
+Removed support for the `publishConfig.alphaTypes` and `.betaTypes` fields that were used together with `--experimental-type-build` to generate `/alpha` and `/beta` entry points. Use the `exports` field to achieve this instead.
diff --git a/packages/cli-node/api-report.md b/packages/cli-node/api-report.md
index 91148596b3..71be6c4bd4 100644
--- a/packages/cli-node/api-report.md
+++ b/packages/cli-node/api-report.md
@@ -53,8 +53,6 @@ export interface BackstagePackageJson {
     access?: 'public' | 'restricted';
     directory?: string;
     registry?: string;
-    alphaTypes?: string;
-    betaTypes?: string;
   };
   // (undocumented)
   scripts?: {
diff --git a/packages/cli-node/src/monorepo/PackageGraph.ts b/packages/cli-node/src/monorepo/PackageGraph.ts
index 421c49f9b9..fb46dbde26 100644
--- a/packages/cli-node/src/monorepo/PackageGraph.ts
+++ b/packages/cli-node/src/monorepo/PackageGraph.ts
@@ -56,8 +56,6 @@ export interface BackstagePackageJson {
     access?: 'public' | 'restricted';
     directory?: string;
     registry?: string;
-    alphaTypes?: string;
-    betaTypes?: string;
   };
 
   dependencies?: {
diff --git a/packages/cli/src/lib/packager/productionPack.ts b/packages/cli/src/lib/packager/productionPack.ts
index aea5df649a..6a59924a30 100644
--- a/packages/cli/src/lib/packager/productionPack.ts
+++ b/packages/cli/src/lib/packager/productionPack.ts
@@ -23,7 +23,7 @@ import { readEntryPoints } from '../entryPoints';
 const PKG_PATH = 'package.json';
 const PKG_BACKUP_PATH = 'package.json-prepack';
 
-const SKIPPED_KEYS = ['access', 'registry', 'tag', 'alphaTypes', 'betaTypes'];
+const SKIPPED_KEYS = ['access', 'registry', 'tag'];
 const SCRIPT_EXTS = ['.js', '.jsx', '.ts', '.tsx'];
 
 interface ProductionPackOptions {
@@ -42,14 +42,6 @@ export async function productionPack(options: ProductionPackOptions) {
     await fs.writeFile(PKG_BACKUP_PATH, pkgContent);
   }
 
-  const hasStageEntry =
-    !!pkg.publishConfig?.alphaTypes || !!pkg.publishConfig?.betaTypes;
-  if (pkg.exports && hasStageEntry) {
-    throw new Error(
-      'Combining both exports and alpha/beta types is not supported',
-    );
-  }
-
   // This mutates pkg to fill in index exports, so call it before applying publishConfig
   const writeCompatibilityEntryPoints = await prepareExportsEntryPoints(
     pkg,
@@ -99,12 +91,6 @@ export async function productionPack(options: ProductionPackOptions) {
     await fs.writeJson(pkgPath, pkg, { encoding: 'utf8', spaces: 2 });
   }
 
-  if (publishConfig.alphaTypes) {
-    await writeReleaseStageEntrypoint(pkg, 'alpha', targetDir ?? packageDir);
-  }
-  if (publishConfig.betaTypes) {
-    await writeReleaseStageEntrypoint(pkg, 'beta', targetDir ?? packageDir);
-  }
   if (writeCompatibilityEntryPoints) {
     await writeCompatibilityEntryPoints(targetDir ?? packageDir);
   }
@@ -118,12 +104,6 @@ export async function revertProductionPack(packageDir: string) {
 
     // Check if we're shipping types for other release stages, clean up in that case
     const pkg = await fs.readJson(PKG_PATH);
-    if (pkg.publishConfig?.alphaTypes) {
-      await fs.remove(resolvePath(packageDir, 'alpha'));
-    }
-    if (pkg.publishConfig?.betaTypes) {
-      await fs.remove(resolvePath(packageDir, 'beta'));
-    }
 
     // Remove any extra entrypoint backwards compatibility directories
     const entryPoints = readEntryPoints(pkg);
@@ -140,32 +120,6 @@ export async function revertProductionPack(packageDir: string) {
   }
 }
 
-function resolveEntrypoint(pkg: any, name: string) {
-  const targetEntry = pkg.publishConfig[name] || pkg[name];
-  return targetEntry && posixPath.join('..', targetEntry);
-}
-
-// Writes e.g. alpha/package.json
-async function writeReleaseStageEntrypoint(
-  pkg: BackstagePackageJson,
-  stage: 'alpha' | 'beta',
-  targetDir: string,
-) {
-  await fs.ensureDir(resolvePath(targetDir, stage));
-  await fs.writeJson(
-    resolvePath(targetDir, stage, PKG_PATH),
-    {
-      name: pkg.name,
-      version: pkg.version,
-      main: resolveEntrypoint(pkg, 'main'),
-      module: resolveEntrypoint(pkg, 'module'),
-      browser: resolveEntrypoint(pkg, 'browser'),
-      types: posixPath.join('..', pkg.publishConfig![`${stage}Types`]!),
-    },
-    { encoding: 'utf8', spaces: 2 },
-  );
-}
-
 const EXPORT_MAP = {
   import: '.esm.js',
   require: '.cjs.js',