Package downloads

The Preamp agent ships as signed, notarized installers for MDM deployment: a managed .pkg for macOS and a signed .msi for Windows. IT admins upload the installer to their MDM (JAMF, Kandji, Intune, Mosyle) and assign it to the target endpoints. A separate uninstaller .pkg handles macOS removal; Windows uninstall is the standard MSI uninstall.

Download Preamp.pkg (macOS) Latest signed release Download Preamp.msi (Windows) Latest signed release Uninstaller.pkg (macOS) For removing the agent from an endpoint

After downloading, verify the signature before uploading to your MDM. For staged rollouts or air-gapped environments, see the release manifest section to grab a specific version.

Verify the download

macOS

The .pkg is Apple-notarized and productsign-signed by Rewind Software, Inc. (Developer ID Installer). Verify both the SHA-256 and the signature before deploying.

# from your Downloads folder; covers both the managed and uninstaller pkgs
pkgutil --check-signature preamp-*.pkg
shasum -a 256 preamp-*.pkg

pkgutil --check-signature must report Status: signed by a developer certificate issued by Apple for distribution. Any other output: do not deploy. Re-download or contact support@preamp.ai.

Windows

The .msi is signed by Rewind Software, Inc. via Azure Trusted Signing. Verify the SHA-256 and the Authenticode signature before deploying:

# in PowerShell, from your Downloads folder
Get-FileHash -Algorithm SHA256 Preamp-*-x64.msi
Get-AuthenticodeSignature Preamp-*-x64.msi | Format-List Status, SignerCertificate

Status must report Valid. Any other output: do not deploy. Re-download or contact support@preamp.ai.

Compare the SHA-256 against the value published in manifest.json for the version you downloaded.

Release manifest

What	URL
Current version string	https://preamp.ai/agent/latest
Release manifest (JSON)	https://preamp.ai/agent/manifest.json
Managed `.pkg` (macOS)	`https://preamp.ai/agent/<version>/preamp-managed-<version>.pkg`
Uninstaller `.pkg` (macOS)	`https://preamp.ai/agent/<version>/preamp-uninstaller-<version>.pkg`
Signed `.msi` (Windows)	`https://preamp.ai/agent/<version>/Preamp-<version>-x64.msi`
Raw `.zip` (Windows, for scripted installs)	`https://preamp.ai/agent/<version>/preamp-windows-amd64-<version>.zip`
SHA-256 checksum	Append `.sha256` to any installer URL above

Substitute <version> with the value from preamp.ai/agent/latest, or use manifest.json for structured access (it includes download URLs and SHA-256 values for every shipped variant).

Version-pinned URLs remain available indefinitely after release. Preamp does not delete or rewrite past releases. Pin a specific version in your MDM if your change-management process requires it.