diff --git a/install.sh b/install.sh
index f1c40bf..8cf362a 100755
--- a/install.sh
+++ b/install.sh
@@ -12,11 +12,7 @@ start_server=1
 force_config=0
 update_cache="${DOSH_UPDATE_CACHE:-$HOME/.cache/dosh/source}"
 quiet="${DOSH_UPDATE_QUIET:-0}"
-if [ "${DOSH_UPDATE_QUIET:-0}" = "1" ] && [ "${DOSH_BINARY_REQUIRED:-0}" != "1" ]; then
-  use_prebuilt=0
-else
-  use_prebuilt="${DOSH_USE_PREBUILT:-1}"
-fi
+use_prebuilt="${DOSH_USE_PREBUILT:-1}"
 binary_url="${DOSH_BINARY_URL:-}"
 binary_base="${DOSH_BINARY_BASE:-}"
 binary_name="${DOSH_BINARY_NAME:-}"
diff --git a/scripts/publish-gitea-release.sh b/scripts/publish-gitea-release.sh
index bc1204b..0353244 100755
--- a/scripts/publish-gitea-release.sh
+++ b/scripts/publish-gitea-release.sh
@@ -99,6 +99,21 @@ fi
 
 web_repo="${base%/}/${repo}"
 failed=0
+artifact_version() {
+  artifact="$1"
+  case "$artifact" in
+    *.tar.gz)
+      tar -xOf "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
+      ;;
+    *.zip)
+      unzip -p "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
+      ;;
+    *)
+      return 1
+      ;;
+  esac
+}
+
 for artifact in target/dosh-release/dosh-linux-*.tar.gz target/dosh-release/dosh-macos-*.tar.gz target/dosh-release/dosh-windows-*.zip; do
   [ -f "$artifact" ] || continue
   name="$(basename "$artifact")"
@@ -107,6 +122,11 @@ for artifact in target/dosh-release/dosh-linux-*.tar.gz target/dosh-release/dosh
       continue
       ;;
   esac
+  actual="$(artifact_version "$artifact" || true)"
+  if [ "$actual" != "$version" ]; then
+    echo "skipping stale artifact $name: version ${actual:-unknown}, expected $version" >&2
+    continue
+  fi
   url="$web_repo/releases/download/$tag/$name"
   if curl -fsSI "$url" >/dev/null; then
     echo "verified $url"
diff --git a/scripts/upload-gitea-release.sh b/scripts/upload-gitea-release.sh
index adece36..efe2e52 100755
--- a/scripts/upload-gitea-release.sh
+++ b/scripts/upload-gitea-release.sh
@@ -32,6 +32,21 @@ token="${GITEA_TOKEN:-}"
 title="${GITEA_TITLE:-$tag}"
 expected_version="${tag#v}"
 
+artifact_version() {
+  artifact="$1"
+  case "$artifact" in
+    *.tar.gz)
+      tar -xOf "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
+      ;;
+    *.zip)
+      unzip -p "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
+      ;;
+    *)
+      return 1
+      ;;
+  esac
+}
+
 if [ -z "$token" ] && [ -f "$HOME/.config/dosh/gitea-token" ]; then
   token="$(tr -d '\r\n' <"$HOME/.config/dosh/gitea-token")"
 fi
@@ -52,6 +67,11 @@ if [ "$#" -eq 0 ]; then
         continue
         ;;
     esac
+    actual="$(artifact_version "$artifact" || true)"
+    if [ "$actual" != "$expected_version" ]; then
+      echo "skipping $artifact: version ${actual:-unknown}, expected $expected_version" >&2
+      continue
+    fi
     if [ -f "$artifact.sha256" ]; then
       set -- "$@" "$artifact" "$artifact.sha256"
     else
@@ -103,21 +123,6 @@ delete_existing_asset() {
     done
 }
 
-artifact_version() {
-  artifact="$1"
-  case "$artifact" in
-    *.tar.gz)
-      tar -xOf "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
-      ;;
-    *.zip)
-      unzip -p "$artifact" dosh/VERSION 2>/dev/null | tr -d '\r\n'
-      ;;
-    *)
-      return 1
-      ;;
-  esac
-}
-
 verify_release_artifact_version() {
   artifact="$1"
   name="$(basename "$artifact")"
diff --git a/tests/release_scripts.rs b/tests/release_scripts.rs
new file mode 100644
index 0000000..dda7c40
--- /dev/null
+++ b/tests/release_scripts.rs
@@ -0,0 +1,20 @@
+#[test]
+fn quiet_update_keeps_prebuilt_enabled_by_default() {
+    let install = include_str!("../install.sh");
+    assert!(install.contains("use_prebuilt=\"${DOSH_USE_PREBUILT:-1}\""));
+    assert!(
+        !install.contains("use_prebuilt=0"),
+        "quiet updates must not force source builds"
+    );
+}
+
+#[test]
+fn release_scripts_skip_stale_artifacts_when_auto_discovering() {
+    let upload = include_str!("../scripts/upload-gitea-release.sh");
+    assert!(upload.contains("skipping $artifact: version"));
+    assert!(upload.contains("expected_version"));
+
+    let publish = include_str!("../scripts/publish-gitea-release.sh");
+    assert!(publish.contains("skipping stale artifact"));
+    assert!(publish.contains("actual=\"$(artifact_version \"$artifact\" || true)\""));
+}