diff --git a/core/io/resource_format_binary.cpp b/core/io/resource_format_binary.cpp
index b6d878dab51..20c494516be 100644
--- a/core/io/resource_format_binary.cpp
+++ b/core/io/resource_format_binary.cpp
@@ -85,18 +85,15 @@ enum {
 	VARIANT_VECTOR4 = 50,
 	VARIANT_VECTOR4I = 51,
 	VARIANT_PROJECTION = 52,
-	VARIANT_PACKED_VECTOR4_ARRAY = 53, // For compat with 4.3, parsing only.
 	OBJECT_EMPTY = 0,
 	OBJECT_EXTERNAL_RESOURCE = 1,
 	OBJECT_INTERNAL_RESOURCE = 2,
 	OBJECT_EXTERNAL_RESOURCE_INDEX = 3,
-	// Version 2: Added 64 bits support for float and int.
-	// Version 3: Changed nodepath encoding.
-	// Version 4: New string ID for ext/subresources, breaks forward compat.
+	// Version 2: added 64 bits support for float and int.
+	// Version 3: changed nodepath encoding.
+	// Version 4: new string ID for ext/subresources, breaks forward compat.
 	// Version 5: Ability to store script class in the header.
 	FORMAT_VERSION = 5,
-	// Version 6: Added PackedVector4Array variant. Parsing only.
-	FORMAT_VERSION_READABLE = 6,
 	FORMAT_VERSION_CAN_RENAME_DEPS = 1,
 	FORMAT_VERSION_NO_NODEPATH_PROPERTY = 3,
 };
@@ -656,27 +653,6 @@ Error ResourceLoaderBinary::parse_variant(Variant &r_v) {
 
 			r_v = array;
 		} break;
-		case VARIANT_PACKED_VECTOR4_ARRAY: {
-			// For compatibility with 4.3, parsing only.
-			// Parse to a Vector<real_t> and then convert to a plain Array.
-			uint32_t len = f->get_32();
-
-			Vector<real_t> array_real;
-			array_real.resize(len * 4);
-			real_t *w = array_real.ptrw();
-			static_assert(sizeof(Vector4) == 4 * sizeof(real_t));
-			const Error err = read_reals(reinterpret_cast<real_t *>(w), f, len * 4);
-			ERR_FAIL_COND_V(err != OK, err);
-
-			Array array;
-			array.resize(len);
-			for (uint32_t i = 0; i < len; i++) {
-				array[i] = Vector4(w[i * 4 + 0], w[i * 4 + 1], w[i * 4 + 2], w[i * 4 + 3]);
-			}
-
-			r_v = array;
-
-		} break;
 		default: {
 			ERR_FAIL_V(ERR_FILE_CORRUPT);
 		} break;