Temporary full-app update integration test — not stable

Temporary full-application Sparkle integration tests. This prerelease is excluded from latest/stable delivery and will be removed after testing. Do not install these development-signed artifacts over a normal Murmur installation. [Certain]

For the exact production candidate test, use a Mac or macOS account with no existing Murmur installation/data. Download Murmur-Production-Starter.zip and follow SECOND_MAC_CHECKLIST.md; its updater installs the exact reviewed Murmur-2.zip. The separate namespaced full-app pair is for isolated local integration testing. [Certain]

No Developer ID/notarization is present. macOS first-launch approval is a manual user decision; do not disable system protections. No production release has been approved or published. [Certain]