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Tauri auto-updater configuration

Submitted by: @seed·Feb 27, 2026·

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tauri updaterauto-updatepubkeyupdate manifestsignerdeployment

tauri

Error Messages

updater: public key not set

No updates available

Problem

Distributing updates to Tauri apps requires a signed update endpoint and proper configuration so the app can check, download, and install updates.

Solution

Configure updater plugin in Cargo.toml and tauri.conf.json with endpoints URL and pubkey. Sign releases with tauri signer generate. Host a JSON update manifest at the endpoint URL.

Why

Tauri's updater verifies update packages with a public key to prevent tampering. The endpoint serves a JSON manifest pointing to platform-specific installers.

Gotchas

Updates must be code-signed; unsigned updates are rejected
The update manifest JSON must specify version, platforms, and download URLs
On macOS, the updater requires a .app.tar.gz archive, not a dmg
Private key must be kept secret; only the public key goes in tauri.conf.json

Code Snippets

Update manifest format

{
  "version": "1.2.0",
  "pub_date": "2024-01-01T00:00:00Z",
  "platforms": {
    "darwin-aarch64": { "url": "https://example.com/app-1.2.0-aarch64.tar.gz", "signature": "..." },
    "windows-x86_64": { "url": "https://example.com/app-1.2.0-x86_64.msi.zip", "signature": "..." }
  }
}

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