diff --git a/learning-rust4.4/GdExt.gdextension b/learning-rust4.4/GdExt.gdextension
index a5ea647..93ed6cb 100644
--- a/learning-rust4.4/GdExt.gdextension
+++ b/learning-rust4.4/GdExt.gdextension
@@ -6,9 +6,3 @@ reloadable = true
 [libraries]
 linux.debug.x86_64 =     "res://../rust/target/debug/libgd_wireportal.so"
 linux.release.x86_64 =   "res://../rust/target/release/libgd_wireportal.so"
-windows.debug.x86_64 =   "res://../rust/target/debug/gd_wireportal.dll"
-windows.release.x86_64 = "res://../rust/target/release/gd_wireportal.dll"
-macos.debug =            "res://../rust/target/debug/libgd_wireportal.dylib"
-macos.release =          "res://../rust/target/release/libgd_wireportal.dylib"
-macos.debug.arm64 =      "res://../rust/target/debug/libgd_wireportal.dylib"
-macos.release.arm64 =    "res://../rust/target/release/libgd_wireportal.dylib"
diff --git a/learning-rust4.4/GdExt.gdextension.old b/learning-rust4.4/GdExt.gdextension.old
new file mode 100644
index 0000000..a5ea647
--- /dev/null
+++ b/learning-rust4.4/GdExt.gdextension.old
@@ -0,0 +1,14 @@
+[configuration]
+entry_symbol = "gdext_rust_init"
+compatibility_minimum = 4.1
+reloadable = true
+
+[libraries]
+linux.debug.x86_64 =     "res://../rust/target/debug/libgd_wireportal.so"
+linux.release.x86_64 =   "res://../rust/target/release/libgd_wireportal.so"
+windows.debug.x86_64 =   "res://../rust/target/debug/gd_wireportal.dll"
+windows.release.x86_64 = "res://../rust/target/release/gd_wireportal.dll"
+macos.debug =            "res://../rust/target/debug/libgd_wireportal.dylib"
+macos.release =          "res://../rust/target/release/libgd_wireportal.dylib"
+macos.debug.arm64 =      "res://../rust/target/debug/libgd_wireportal.dylib"
+macos.release.arm64 =    "res://../rust/target/release/libgd_wireportal.dylib"