diff --git a/backend/library.c b/backend/library.c
index 54162e0c..ebaf0294 100644
--- a/backend/library.c
+++ b/backend/library.c
@@ -983,8 +983,8 @@ int ZBarcode_Encode(struct zint_symbol *symbol, const unsigned char *source,int
         error_number = ZINT_ERROR_INVALID_OPTION;
     }
 
-    if ((symbol->eci < 3) || (symbol->eci > 26) || (symbol->eci == 14) || (symbol->eci == 19) || (symbol->eci == 25)) {
-        strcpy(symbol->errtxt, "Invalid or unsupported ECI mode (B18)");
+    if ((symbol->eci < 3) || (symbol->eci > 999999)) {
+        strcpy(symbol->errtxt, "Invalid ECI mode (B18)");
         error_number = ZINT_ERROR_INVALID_OPTION;
     }
 
@@ -1304,3 +1304,7 @@ int ZBarcode_Render(struct zint_symbol *symbol, const float width, const float h
     // Send the request to the render_plot method
     return render_plot(symbol, width, height);
 }
+
+int ZBarcode_Version() {
+    return (ZINT_VERSION_MAJOR * 10000) + (ZINT_VERSION_MINOR * 100) + ZINT_VERSION_RELEASE;
+}
\ No newline at end of file
diff --git a/backend/zint.h b/backend/zint.h
index 8f291acf..369dcb8f 100644
--- a/backend/zint.h
+++ b/backend/zint.h
@@ -274,6 +274,7 @@ extern "C" {
     ZINT_EXTERN int ZBarcode_Encode_File_and_Buffer(struct zint_symbol *symbol, char *filename, int rotate_angle);
 
     ZINT_EXTERN int ZBarcode_ValidID(int symbol_id);
+    ZINT_EXTERN int ZBarcode_Version();
 
 #ifdef __cplusplus
 }