diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/d8/D8RootExtension.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/d8/D8RootExtension.kt
index 86436bc580b..78fdc2e493e 100644
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/d8/D8RootExtension.kt
+++ b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/js/d8/D8RootExtension.kt
@@ -27,6 +27,20 @@ open class D8RootExtension(@Transient val rootProject: Project) : ConfigurationP
     var downloadBaseUrl by Property("https://storage.googleapis.com/chromium-v8/official/canary/")
 
     // Latest version number could be found here https://storage.googleapis.com/chromium-v8/official/canary/v8-linux64-rel-latest.json
+    // Bash script/command to check that version specified in `VER` is available for all platforms, just copy-paste and run it in terminal:
+    /*
+    VER=${"$(curl -s https://storage.googleapis.com/chromium-v8/official/canary/v8-linux64-rel-latest.json)":13:-2}
+    echo "VER = $VER"
+    echo "=================="
+    for p in "mac64" "mac-arm64" "linux32" "linux64" "win32" "win64"; do
+        r=$(curl -I -s -o /dev/null -w "%{http_code}" https://storage.googleapis.com/chromium-v8/official/canary/v8-$p-rel-$VER.zip)
+        if [ "$r" -eq 200 ]; then
+            echo "$p   \t✅";
+        else
+            echo "$p   \t❌";
+        fi;
+    done;
+    */
     var version by Property("10.9.194")
     var edition by Property("rel") // rel or dbg