twrp release: 3.5.0 Android 9 release

Change-Id: I02f1ca7e27ff00910f24ea12d8bab60375dcbc84
diff --git a/variables.h b/variables.h
index b41f38e..8ef8288 100644
--- a/variables.h
+++ b/variables.h
@@ -17,7 +17,7 @@
 #ifndef _VARIABLES_HEADER_
 #define _VARIABLES_HEADER_
 
-#define TW_MAIN_VERSION_STR       "3.4.0_9"
+#define TW_MAIN_VERSION_STR       "3.5.0_9"
 #define TW_VERSION_STR TW_MAIN_VERSION_STR TW_DEVICE_VERSION
 
 #define TW_USE_COMPRESSION_VAR      "tw_use_compression"