feat: support installing the latest beta release via version: beta

The `latest` channel resolves through the GitHub `/releases/latest` endpoint, which never returns prereleases, so there was no way to track the CLI beta channel — any other value was treated as an exact version. Add a `beta` channel that lists releases and installs the most recent beta prerelease. This lets consumers surface (and fix) breakages early. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01APKXLPMGXsnWUSU3i16Lfv
2026-06-28 18:06:59 +00:00 · 2026-06-26 14:55:02 +02:00
6 changed files with 194 additions and 63 deletions
--- a/README.md
+++ b/README.md
@@ -40,6 +40,17 @@ steps:
      version: 2.84.2
 ```

+To always track the latest beta prerelease, set `version` to `beta`. This is
+useful for surfacing (and fixing) breakages early:
+
+```yaml
+steps:
+  - uses: supabase/setup-cli@v2
+    with:
+      version: beta
+      github-token: ${{ github.token }}
+```
+
 Run `supabase db start` to execute all migrations on a fresh database:

 ```yaml
@@ -59,10 +70,10 @@ on Windows and macOS runners.

 The action supports the following inputs:

-| Name           | Type   | Description                                                                | Default                           | Required |
-| -------------- | ------ | -------------------------------------------------------------------------- | --------------------------------- | -------- |
-| `version`      | String | Supabase CLI version (or `latest`)                                         | Root lockfile version or `latest` | false    |
-| `github-token` | String | GitHub token used to resolve `latest` without unauthenticated API limiting |                                   | false    |
+| Name           | Type   | Description                                                                       | Default                           | Required |
+| -------------- | ------ | --------------------------------------------------------------------------------- | --------------------------------- | -------- |
+| `version`      | String | Supabase CLI version (or `latest`, or `beta` for the latest beta release)         | Root lockfile version or `latest` | false    |
+| `github-token` | String | GitHub token used to resolve `latest`/`beta` without unauthenticated API limiting |                                   | false    |

 ## Advanced Usage

--- a/action.yml
+++ b/action.yml
@@ -3,7 +3,7 @@ description: Setup Supabase CLI, supabase, on GitHub Actions runners
 author: Supabase
 inputs:
  version:
-    description: Version of Supabase CLI to install. If omitted, detect from the root lockfile and otherwise use latest.
+    description: Version of Supabase CLI to install. Accepts a specific version, "latest", or "beta" (latest beta prerelease). If omitted, detect from the root lockfile and otherwise use latest.
    required: false
  github-token:
    description: GitHub token used to resolve the latest Supabase CLI release without hitting unauthenticated API limits.
--- a/bun.lock
+++ b/bun.lock
@@ -12,9 +12,9 @@
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        "@types/bun": "^1.3.14",
        "@typescript/native-preview": "^7.0.0-dev.20260410.1",
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-        "oxlint": "^1.66.0",
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+        "oxfmt": "^0.49.0",
+        "oxlint": "^1.64.0",
+        "oxlint-tsgolint": "^0.22.1",
      },
    },
  },
@@ -29,93 +29,93 @@

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+    "@oxlint/binding-linux-riscv64-musl": ["@oxlint/binding-linux-riscv64-musl@1.64.0", "", { "os": "linux", "cpu": "none" }, "sha512-HEgsidjjvvyzdg82icYkuFCf7REDV7B9JFwbIMbVwrKLBY0MrXX+bku3POn/hduZ2yW91IyVDUMq0Bf02KwXQw=="],

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+    "@oxlint/binding-linux-x64-gnu": ["@oxlint/binding-linux-x64-gnu@1.64.0", "", { "os": "linux", "cpu": "x64" }, "sha512-cR60vSd7+m+KRZ3GQGfDxWwahW5RMXg0qlGvAluZr0fTUYvw0H9N9AXAF/M/PMqgytyqvVNmBAkJG9l7U30Y1g=="],

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+    "@oxlint/binding-linux-x64-musl": ["@oxlint/binding-linux-x64-musl@1.64.0", "", { "os": "linux", "cpu": "x64" }, "sha512-2u/aPZ9pEg7HnvZPDsHxUGNnrpr4qaHi+mCgLgpt+LYRzPrS4Px4wPfkIdRdr2GvKnaYyt+XSlto0Vm5sbStTg=="],

-    "@oxlint/binding-openharmony-arm64": ["@oxlint/binding-openharmony-arm64@1.66.0", "", { "os": "none", "cpu": "arm64" }, "sha512-yde+6p/F59xRkGR9H1HfngWRif1QRJjynZK349l+UI0H6w9hL3G8/AVaTHFyTtLVQ56qtNbX2/5Dc77n1ovnOg=="],
+    "@oxlint/binding-openharmony-arm64": ["@oxlint/binding-openharmony-arm64@1.64.0", "", { "os": "none", "cpu": "arm64" }, "sha512-kfhkGfCdoXLSxEkrhDlJrvBYajGmq+ma4EMc53dsOWTq+rIBOlI0vTBmpZNnM5oH2LY/K/w1HAK+UQEgjgpVUg=="],

-    "@oxlint/binding-win32-arm64-msvc": ["@oxlint/binding-win32-arm64-msvc@1.66.0", "", { "os": "win32", "cpu": "arm64" }, "sha512-O9GLucgoTdmOrbBX+EjzNe7o/Ze5TFOvXcib6bzUOtBOmj6cV+zw18NgB+cGKAkDw1Pdqs8vGkfHbbsLuDtXWg=="],
+    "@oxlint/binding-win32-arm64-msvc": ["@oxlint/binding-win32-arm64-msvc@1.64.0", "", { "os": "win32", "cpu": "arm64" }, "sha512-r/cNKBFieONoVu2bb1KkVouq9W+edDUgHumXJGphCRRj+U0xaD4nanrw8ZOqo0IsutPkEM4vCcGBpak6x5aXMg=="],

-    "@oxlint/binding-win32-ia32-msvc": ["@oxlint/binding-win32-ia32-msvc@1.66.0", "", { "os": "win32", "cpu": "ia32" }, "sha512-m3Pjwc2MfTcom4E4gOv7DyuGyt7OfGNCbmqDHd+N7EzXmP+ppHuudm2NjcA3AjV5TSeGxaguVF4SbTKHe1USYA=="],
+    "@oxlint/binding-win32-ia32-msvc": ["@oxlint/binding-win32-ia32-msvc@1.64.0", "", { "os": "win32", "cpu": "ia32" }, "sha512-tUw0xUUwEFVZbpJoeCblkv8SJA4Xz3CdXCJbAnBsiNLyxDrk2tLcxEAS6M73Q7hHHDg3OtwI8vZVK3t5RJt4Gw=="],

-    "@oxlint/binding-win32-x64-msvc": ["@oxlint/binding-win32-x64-msvc@1.66.0", "", { "os": "win32", "cpu": "x64" }, "sha512-/DbBvw8UFBhja6PqudUjV4UtfsJr0Oa7jUjWVKB0g86lj/VwnPrkngn0sFql3c9RDA0O16dh7ozsXb6GjNAzBQ=="],
+    "@oxlint/binding-win32-x64-msvc": ["@oxlint/binding-win32-x64-msvc@1.64.0", "", { "os": "win32", "cpu": "x64" }, "sha512-9CBR+LO0JVST87fNTzzNxS5I29jIUO5gxT9i9+M3SDHHALElj9sY1Prf12tad3vIRC6OD7Ehtvvh+sn13vSwHw=="],

    "@tsconfig/bun": ["@tsconfig/bun@1.0.10", "", {}, "sha512-5AV5YknQjNyoYzZ/8NG0dawqew/wH+x7ANiCfCIn29qo0cdbd1EryvFD1k5NSZWLBMOI/fGqMIaxi58GPIP9Cg=="],

@@ -141,11 +141,11 @@

    "bun-types": ["bun-types@1.3.14", "", { "dependencies": { "@types/node": "*" } }, "sha512-4N0ig0fEomHt5R0KCFWjovxow98rIoRwKolrYdCcknNwMekCXRnWEUvgu5soYV8QXtVsrUD8B95MBOZGPvr6KQ=="],

-    "oxfmt": ["oxfmt@0.51.0", "", { "dependencies": { "tinypool": "2.1.0" }, "optionalDependencies": { "@oxfmt/binding-android-arm-eabi": "0.51.0", "@oxfmt/binding-android-arm64": "0.51.0", "@oxfmt/binding-darwin-arm64": "0.51.0", "@oxfmt/binding-darwin-x64": "0.51.0", "@oxfmt/binding-freebsd-x64": "0.51.0", "@oxfmt/binding-linux-arm-gnueabihf": "0.51.0", "@oxfmt/binding-linux-arm-musleabihf": "0.51.0", "@oxfmt/binding-linux-arm64-gnu": "0.51.0", "@oxfmt/binding-linux-arm64-musl": "0.51.0", "@oxfmt/binding-linux-ppc64-gnu": "0.51.0", "@oxfmt/binding-linux-riscv64-gnu": "0.51.0", "@oxfmt/binding-linux-riscv64-musl": "0.51.0", "@oxfmt/binding-linux-s390x-gnu": "0.51.0", "@oxfmt/binding-linux-x64-gnu": "0.51.0", "@oxfmt/binding-linux-x64-musl": "0.51.0", "@oxfmt/binding-openharmony-arm64": "0.51.0", "@oxfmt/binding-win32-arm64-msvc": "0.51.0", "@oxfmt/binding-win32-ia32-msvc": "0.51.0", "@oxfmt/binding-win32-x64-msvc": "0.51.0" }, "peerDependencies": { "svelte": "^5.0.0" }, "optionalPeers": ["svelte"], "bin": { "oxfmt": "bin/oxfmt" } }, "sha512-l/AoAnaEOV7Q5/Z9kHOMDehVJnCgYN7wRoooWCTUMBMi16BJhLZqd9cmCnwcVFfVlzkt53zK2KLPFNp8vSsoDg=="],
+    "oxfmt": ["oxfmt@0.49.0", "", { "dependencies": { "tinypool": "2.1.0" }, "optionalDependencies": { "@oxfmt/binding-android-arm-eabi": "0.49.0", "@oxfmt/binding-android-arm64": "0.49.0", "@oxfmt/binding-darwin-arm64": "0.49.0", "@oxfmt/binding-darwin-x64": "0.49.0", "@oxfmt/binding-freebsd-x64": "0.49.0", "@oxfmt/binding-linux-arm-gnueabihf": "0.49.0", "@oxfmt/binding-linux-arm-musleabihf": "0.49.0", "@oxfmt/binding-linux-arm64-gnu": "0.49.0", "@oxfmt/binding-linux-arm64-musl": "0.49.0", "@oxfmt/binding-linux-ppc64-gnu": "0.49.0", "@oxfmt/binding-linux-riscv64-gnu": "0.49.0", "@oxfmt/binding-linux-riscv64-musl": "0.49.0", "@oxfmt/binding-linux-s390x-gnu": "0.49.0", "@oxfmt/binding-linux-x64-gnu": "0.49.0", "@oxfmt/binding-linux-x64-musl": "0.49.0", "@oxfmt/binding-openharmony-arm64": "0.49.0", "@oxfmt/binding-win32-arm64-msvc": "0.49.0", "@oxfmt/binding-win32-ia32-msvc": "0.49.0", "@oxfmt/binding-win32-x64-msvc": "0.49.0" }, "peerDependencies": { "svelte": "^5.0.0" }, "optionalPeers": ["svelte"], "bin": { "oxfmt": "bin/oxfmt" } }, "sha512-IAHFMdlJSWe+oAr65dx22UvjCtV9DBMisAuLnKpDqMQrctzCkGnj3QRwNHm0d+uwSWPalsDF8ZYLz9rh6nH2IQ=="],

-    "oxlint": ["oxlint@1.66.0", "", { "optionalDependencies": { "@oxlint/binding-android-arm-eabi": "1.66.0", "@oxlint/binding-android-arm64": "1.66.0", "@oxlint/binding-darwin-arm64": "1.66.0", "@oxlint/binding-darwin-x64": "1.66.0", "@oxlint/binding-freebsd-x64": "1.66.0", "@oxlint/binding-linux-arm-gnueabihf": "1.66.0", "@oxlint/binding-linux-arm-musleabihf": "1.66.0", "@oxlint/binding-linux-arm64-gnu": "1.66.0", "@oxlint/binding-linux-arm64-musl": "1.66.0", "@oxlint/binding-linux-ppc64-gnu": "1.66.0", "@oxlint/binding-linux-riscv64-gnu": "1.66.0", "@oxlint/binding-linux-riscv64-musl": "1.66.0", "@oxlint/binding-linux-s390x-gnu": "1.66.0", "@oxlint/binding-linux-x64-gnu": "1.66.0", "@oxlint/binding-linux-x64-musl": "1.66.0", "@oxlint/binding-openharmony-arm64": "1.66.0", "@oxlint/binding-win32-arm64-msvc": "1.66.0", "@oxlint/binding-win32-ia32-msvc": "1.66.0", "@oxlint/binding-win32-x64-msvc": "1.66.0" }, "peerDependencies": { "oxlint-tsgolint": ">=0.22.1" }, "optionalPeers": ["oxlint-tsgolint"], "bin": { "oxlint": "bin/oxlint" } }, "sha512-N4LLxYLd94KEBqXDMDM5f+2PUpItTjDLreXe2Gn5KhjhCK4Qp2YUXaBi8Yu325ryOgKwt22m45fpD7nPOn69Yw=="],
+    "oxlint": ["oxlint@1.64.0", "", { "optionalDependencies": { "@oxlint/binding-android-arm-eabi": "1.64.0", "@oxlint/binding-android-arm64": "1.64.0", "@oxlint/binding-darwin-arm64": "1.64.0", "@oxlint/binding-darwin-x64": "1.64.0", "@oxlint/binding-freebsd-x64": "1.64.0", "@oxlint/binding-linux-arm-gnueabihf": "1.64.0", "@oxlint/binding-linux-arm-musleabihf": "1.64.0", "@oxlint/binding-linux-arm64-gnu": "1.64.0", "@oxlint/binding-linux-arm64-musl": "1.64.0", "@oxlint/binding-linux-ppc64-gnu": "1.64.0", "@oxlint/binding-linux-riscv64-gnu": "1.64.0", "@oxlint/binding-linux-riscv64-musl": "1.64.0", "@oxlint/binding-linux-s390x-gnu": "1.64.0", "@oxlint/binding-linux-x64-gnu": "1.64.0", "@oxlint/binding-linux-x64-musl": "1.64.0", "@oxlint/binding-openharmony-arm64": "1.64.0", "@oxlint/binding-win32-arm64-msvc": "1.64.0", "@oxlint/binding-win32-ia32-msvc": "1.64.0", "@oxlint/binding-win32-x64-msvc": "1.64.0" }, "peerDependencies": { "oxlint-tsgolint": ">=0.22.1" }, "optionalPeers": ["oxlint-tsgolint"], "bin": { "oxlint": "bin/oxlint" } }, "sha512-Star3SNpWPeWFPw7kRXIhXUSn6fdiAl25q15CQzH/9WaOtG6e9CWTc25vNZOCr4PE1yEP1GtKJKIKglhj3OmEQ=="],

-    "oxlint-tsgolint": ["oxlint-tsgolint@0.23.0", "", { "optionalDependencies": { "@oxlint-tsgolint/darwin-arm64": "0.23.0", "@oxlint-tsgolint/darwin-x64": "0.23.0", "@oxlint-tsgolint/linux-arm64": "0.23.0", "@oxlint-tsgolint/linux-x64": "0.23.0", "@oxlint-tsgolint/win32-arm64": "0.23.0", "@oxlint-tsgolint/win32-x64": "0.23.0" }, "bin": { "tsgolint": "bin/tsgolint.js" } }, "sha512-3mBv3CoPbh8dFbzfDGIWa2ytZjn2v+3EX4aKRXjIhsoGFzG8GCjfRirz3rwZf1wYbZzsNLTSgpw8VjQuWdp/jA=="],
+    "oxlint-tsgolint": ["oxlint-tsgolint@0.22.1", "", { "optionalDependencies": { "@oxlint-tsgolint/darwin-arm64": "0.22.1", "@oxlint-tsgolint/darwin-x64": "0.22.1", "@oxlint-tsgolint/linux-arm64": "0.22.1", "@oxlint-tsgolint/linux-x64": "0.22.1", "@oxlint-tsgolint/win32-arm64": "0.22.1", "@oxlint-tsgolint/win32-x64": "0.22.1" }, "bin": { "tsgolint": "bin/tsgolint.js" } }, "sha512-YUSGSLUnoolsu8gxISEDio3q1rtsCozwfOzASUn3DT2mR2EeQ93uEEnen7s+6LpF+lyTQFln1pQfqwBh/fsVEg=="],

    "semver": ["semver@7.7.4", "", { "bin": { "semver": "bin/semver.js" } }, "sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA=="],

--- a/package.json
+++ b/package.json
@@ -31,9 +31,9 @@
    "@tsconfig/bun": "^1.0.10",
    "@types/bun": "^1.3.14",
    "@typescript/native-preview": "^7.0.0-dev.20260410.1",
-    "oxfmt": "^0.51.0",
-    "oxlint": "^1.66.0",
-    "oxlint-tsgolint": "^0.23.0"
+    "oxfmt": "^0.49.0",
+    "oxlint": "^1.64.0",
+    "oxlint-tsgolint": "^0.22.1"
  },
  "engines": {
    "bun": ">=1.3.10"
--- a/src/main.test.ts
+++ b/src/main.test.ts
@@ -11,6 +11,7 @@ const repo = path.dirname(path.dirname(fileURLToPath(import.meta.url)));
 const defaultEntrypoint = fileURLToPath(new URL("./main.ts", import.meta.url));
 const CLI_CONFIG_REGISTRY = "SUPABASE_INTERNAL_IMAGE_REGISTRY";
 const GITHUB_RELEASES_API = "https://api.github.com/repos/supabase/cli/releases/latest";
+const GITHUB_RELEASES_LIST_API = "https://api.github.com/repos/supabase/cli/releases";
 const GITHUB_TOKEN_ENV = "SUPABASE_CLI_GITHUB_TOKEN";
 const originalWorkspace = process.env.GITHUB_WORKSPACE;
 const originalGithubToken = process.env[GITHUB_TOKEN_ENV];
@@ -177,6 +178,21 @@ function mockLatestRelease(version = "v2.99.0") {
  );
 }

+function mockBetaReleases(
+  releases: Array<{ tag_name: string; prerelease: boolean }> = [
+    { tag_name: "v2.100.0-beta.2", prerelease: true },
+    { tag_name: "v2.100.0-beta.1", prerelease: true },
+    { tag_name: "v2.99.0", prerelease: false },
+  ],
+) {
+  return spyOn(globalThis, "fetch").mockResolvedValue(
+    new Response(JSON.stringify(releases), {
+      status: 200,
+      statusText: "OK",
+    }),
+  );
+}
+
 async function getMainModule(): Promise<typeof import("./main.ts")> {
  if (!mainModule) {
    mainModule = await import("./main.ts");
@@ -276,6 +292,66 @@ test("authenticates latest release lookup when a GitHub token is provided", asyn
  });
 });

+test("resolves the latest beta prerelease for the beta channel", async () => {
+  mockBetaReleases();
+  const { getDownloadArchive } = await getMainModule();
+
+  const archive = await getDownloadArchive("beta", "darwin", "arm64");
+
+  expect(archive).toEqual({
+    url: "https://github.com/supabase/cli/releases/download/v2.100.0-beta.2/supabase_2.100.0-beta.2_darwin_arm64.tar.gz",
+    format: "tar",
+  });
+});
+
+test("treats the beta channel case-insensitively and skips stable releases", async () => {
+  mockBetaReleases([
+    { tag_name: "v2.99.0", prerelease: false },
+    { tag_name: "v2.100.0-beta.5", prerelease: true },
+  ]);
+  const { getDownloadArchive } = await getMainModule();
+
+  const archive = await getDownloadArchive("BETA", "linux", "x64");
+
+  expect(archive.url).toContain("/download/v2.100.0-beta.5/supabase_2.100.0-beta.5_linux_amd64");
+});
+
+test("fails when no beta prerelease is available", async () => {
+  mockBetaReleases([{ tag_name: "v2.99.0", prerelease: false }]);
+  const { getDownloadArchive } = await getMainModule();
+
+  expect(getDownloadArchive("beta", "linux", "x64")).rejects.toThrow(
+    "Failed to resolve latest Supabase CLI beta release: no beta release found",
+  );
+});
+
+test("queries the releases list when resolving the beta channel", async () => {
+  const fetch = mockBetaReleases();
+  const { getDownloadArchive } = await getMainModule();
+
+  await getDownloadArchive("beta", "darwin", "arm64");
+
+  expect(fetch).toHaveBeenCalledWith(GITHUB_RELEASES_LIST_API, {
+    headers: expect.objectContaining({
+      Accept: "application/vnd.github+json",
+      "X-GitHub-Api-Version": "2022-11-28",
+    }),
+  });
+});
+
+test("exports the internal registry when installing the beta channel", async () => {
+  mockBetaReleases();
+  const cliDir = createFakeCli("supabase 2.100.0-beta.2");
+  const spies = createActionSpies("beta", cliDir, "/download/v2.100.0-beta.2/supabase_");
+  const { run } = await getMainModule();
+
+  await run();
+
+  expect(spies.setOutput).toHaveBeenCalledWith("version", "supabase 2.100.0-beta.2");
+  expect(spies.exportVariable).toHaveBeenCalledWith(CLI_CONFIG_REGISTRY, "ghcr.io");
+  expect(spies.setFailed).not.toHaveBeenCalled();
+});
+
 test("awaits the action entrypoint with omitted version and latest fallback", async () => {
  process.env.GITHUB_WORKSPACE = repo;
  mockLatestRelease();
--- a/src/main.ts
+++ b/src/main.ts
@@ -9,7 +9,10 @@ export const CLI_CONFIG_REGISTRY = "SUPABASE_INTERNAL_IMAGE_REGISTRY";
 const REGISTRY_VERSION = "1.28.0";
 const VERSIONED_ARCHIVE_VERSION = "2.99.0";
 const DEFAULT_VERSION = "latest";
+const LATEST_VERSION = "latest";
+const BETA_VERSION = "beta";
 const GITHUB_RELEASES_API = "https://api.github.com/repos/supabase/cli/releases/latest";
+const GITHUB_RELEASES_LIST_API = "https://api.github.com/repos/supabase/cli/releases";
 const GITHUB_TOKEN_ENV = "SUPABASE_CLI_GITHUB_TOKEN";

 type ArchiveFormat = "apk" | "tar" | "zip";
@@ -175,7 +178,7 @@ function resolveVersion(inputVersion: string): string {
  );
 }

-async function resolveLatestVersion(): Promise<string> {
+function buildGithubHeaders(): Record<string, string> {
  const headers: Record<string, string> = {
    Accept: "application/vnd.github+json",
    "X-GitHub-Api-Version": "2022-11-28",
@@ -186,7 +189,11 @@ async function resolveLatestVersion(): Promise<string> {
    headers.Authorization = `Bearer ${githubToken}`;
  }

-  const response = await fetch(GITHUB_RELEASES_API, { headers });
+  return headers;
+}
+
+async function resolveLatestVersion(): Promise<string> {
+  const response = await fetch(GITHUB_RELEASES_API, { headers: buildGithubHeaders() });
  if (!response.ok) {
    throw new Error(`Failed to resolve latest Supabase CLI release: ${response.statusText}`);
  }
@@ -199,6 +206,31 @@ async function resolveLatestVersion(): Promise<string> {
  return normalizeVersion(release.tag_name);
 }

+async function resolveLatestBetaVersion(): Promise<string> {
+  // The /releases/latest endpoint never returns prereleases, so list all
+  // releases (sorted newest-first) and pick the most recent beta prerelease.
+  const response = await fetch(GITHUB_RELEASES_LIST_API, { headers: buildGithubHeaders() });
+  if (!response.ok) {
+    throw new Error(`Failed to resolve latest Supabase CLI beta release: ${response.statusText}`);
+  }
+
+  const releases = (await response.json()) as Array<{ tag_name?: unknown; prerelease?: unknown }>;
+  const beta = Array.isArray(releases)
+    ? releases.find(
+        (release) =>
+          release.prerelease === true &&
+          typeof release.tag_name === "string" &&
+          /-beta/i.test(release.tag_name),
+      )
+    : undefined;
+
+  if (!beta || typeof beta.tag_name !== "string") {
+    throw new Error("Failed to resolve latest Supabase CLI beta release: no beta release found");
+  }
+
+  return normalizeVersion(beta.tag_name);
+}
+
 function getArchiveFormat(
  version: string,
  platform: NodeJS.Platform,
@@ -250,8 +282,15 @@ export async function getDownloadArchive(
  arch = process.arch,
  isMuslLinux?: boolean,
 ): Promise<DownloadArchive> {
-  const resolvedVersion =
-    version.toLowerCase() === "latest" ? await resolveLatestVersion() : normalizeVersion(version);
+  const channel = version.toLowerCase();
+  let resolvedVersion: string;
+  if (channel === LATEST_VERSION) {
+    resolvedVersion = await resolveLatestVersion();
+  } else if (channel === BETA_VERSION) {
+    resolvedVersion = await resolveLatestBetaVersion();
+  } else {
+    resolvedVersion = normalizeVersion(version);
+  }
  const format = getArchiveFormat(
    resolvedVersion,
    platform,
@@ -328,7 +367,12 @@ export async function run(): Promise<void> {
    core.setOutput("version", installedVersion);
    core.addPath(cliPath);

-    if (version.toLowerCase() === "latest" || semver.order(version, REGISTRY_VERSION) >= 0) {
+    const channel = version.toLowerCase();
+    if (
+      channel === LATEST_VERSION ||
+      channel === BETA_VERSION ||
+      semver.order(version, REGISTRY_VERSION) >= 0
+    ) {
      core.exportVariable(CLI_CONFIG_REGISTRY, "ghcr.io");
    }
  } catch (error) {