diff --git a/scripts/guibuild.py b/scripts/guibuild.py
index b25d989..560ee7b 100755
--- a/scripts/guibuild.py
+++ b/scripts/guibuild.py
@@ -72,6 +72,7 @@ class _Platform(NamedTuple):
     """
 
     tag: str  # win64 / macos / linux
+    channel: str  # Velopack update channel: win / osx / linux
     rid: str  # Velopack runtime id
     dist_dir: str  # PyInstaller output dir under build/
     icon: str  # file in mediahive/assets
@@ -81,10 +82,10 @@ class _Platform(NamedTuple):
 
 def _platform() -> _Platform:
     if sys.platform == "win32":
-        return _Platform("win64", "win-x64", "MediaHive", "mediahive.ico", "MediaHive.exe", ".exe")
+        return _Platform("win64", "win", "win-x64", "MediaHive", "mediahive.ico", "MediaHive.exe", ".exe")
     if sys.platform == "darwin":
-        return _Platform("macos", "osx-arm64", "MediaHive.app", "mediahive.icns", "MediaHive", ".pkg")
-    return _Platform("linux", "linux-x64", "MediaHive", "mediahive.png", "MediaHive", ".AppImage")
+        return _Platform("macos", "osx", "osx-arm64", "MediaHive.app", "mediahive.icns", "MediaHive", ".pkg")
+    return _Platform("linux", "linux", "linux-x64", "MediaHive", "mediahive.png", "MediaHive", ".AppImage")
 
 
 def setup_artifact_name(version: str) -> str:
@@ -383,30 +384,34 @@ def build_velopack(version: str) -> Path:
     artifact = _REPO_ROOT / "build" / setup_artifact_name(version)
     artifact.unlink(missing_ok=True)
     setup.rename(artifact)
-    rename_feed_packages(releases_dir)
+    rename_feed_package(releases_dir, version, plat.channel)
     return artifact
 
 
-def rename_feed_packages(releases_dir: Path) -> None:
-    """Lowercase the update-feed nupkgs in place.
+def rename_feed_package(releases_dir: Path, version: str, channel: str) -> None:
+    """Rename this platform's update-feed nupkg in place.
 
-    Gitea sorts release assets with capitals first: MediaHive-*-full.nupkg
-    listed right between the Setup/AppImage downloads invites confusion.
-    As mediahive-*-full.nupkg they group with the wheel/sdist instead.
-    The feed manifests reference the filename, so patch those too.
+    vpk hardcodes MediaHive-{ver}[-{channel}]-full.nupkg (Windows, the legacy
+    default channel, gets no marker). Rename all to the uniform
+    mediahive-{ver}-{channel}-full.nupkg: lowercase groups them with the
+    wheel/sdist below the capitalized user downloads on the release page,
+    and every platform carries its channel. releases.<channel>.json
+    references the filename, so patch it too.
     """
-    manifests = [
-        p
-        for pattern in ("RELEASES", "releases.*.json", "assets.*.json")
-        for p in releases_dir.glob(pattern)
-    ]
-    for nupkg in releases_dir.glob("MediaHive-*-full.nupkg"):
-        new_name = "mediahive-" + nupkg.name.removeprefix("MediaHive-")
-        for manifest in manifests:
-            text = manifest.read_text()
-            if nupkg.name in text:
-                manifest.write_text(text.replace(nupkg.name, new_name))
-        nupkg.rename(nupkg.with_name(new_name))
+    old_name = f"MediaHive-{version}-full.nupkg"
+    if not (releases_dir / old_name).exists():
+        old_name = f"MediaHive-{version}-{channel}-full.nupkg"
+    nupkg = releases_dir / old_name
+    if not nupkg.exists():
+        raise RuntimeError(f"vpk produced no {old_name} in {releases_dir}")
+
+    new_name = f"mediahive-{version}-{channel}-full.nupkg"
+    manifest = releases_dir / f"releases.{channel}.json"
+    text = manifest.read_text()
+    if old_name not in text:
+        raise RuntimeError(f"{manifest.name} does not reference {old_name}")
+    manifest.write_text(text.replace(old_name, new_name))
+    nupkg.rename(nupkg.with_name(new_name))
 
 
 def force_macos_user_install(pkg: Path) -> None:
diff --git a/scripts/release.py b/scripts/release.py
index 875750c..bf4496a 100755
--- a/scripts/release.py
+++ b/scripts/release.py
@@ -118,14 +118,16 @@ def find_dist_files(version: str) -> list[Path]:
 def find_velopack_feed_files() -> list[Path]:
     """Velopack update feed files produced by vpk pack in build/velopack/.
 
-    These keep their original names — the feed JSONs reference them — and
-    in-app updates (GiteaSource) download them from the latest release.
+    Only what the in-app updater (GiteaSource) reads from the latest
+    release: this channel's releases.<channel>.json index and the nupkg
+    payload it points to. The legacy RELEASES and assets.*.json manifests
+    (Squirrel compat / setup bootstrap) are not uploaded.
     """
     releases_dir = REPO_ROOT / "build" / "velopack"
     if not releases_dir.exists():
         return []
     files: list[Path] = []
-    for pattern in ("RELEASES", "releases.*.json", "assets.*.json", "*.nupkg"):
+    for pattern in ("releases.*.json", "*.nupkg"):
         files.extend(sorted(releases_dir.glob(pattern)))
     return files