releases.truealter.com Alter-controlled binary distribution substrate. D-INSTALL-INDEPENDENCE-1 (RATIFIED 2026-05-04). Surfaces: /manifest.json autoupdate manifest (winget + Scoop checkver consumer) /.well-known/keys.json Authenticode + sigstore + Ed25519 trust anchors /v// R2-backed binary release artefacts Discovery: IETF: draft-morrison-mcp-dns-discovery-00 DNS: _alter._releases.truealter.com Environment: staging GitHub Releases is discoverability-only and never load-bearing for customer install or update paths.