diff --git a/const.go b/const.go
index 3a6a8cd..d4908de 100644
--- a/const.go
+++ b/const.go
@@ -166,6 +166,7 @@ const (
 	PREPARE_PERSISTENT PrepareFlag = 0x01
 	PREPARE_NORMALIZE  PrepareFlag = 0x02
 	PREPARE_NO_VTAB    PrepareFlag = 0x04
+	PREPARE_DONT_LOG   PrepareFlag = 0x10
 )
 
 // FunctionFlag is a flag that can be passed to
@@ -219,6 +220,7 @@ const (
 	DBSTATUS_DEFERRED_FKS        DBStatus = 10
 	DBSTATUS_CACHE_USED_SHARED   DBStatus = 11
 	DBSTATUS_CACHE_SPILL         DBStatus = 12
+	// DBSTATUS_MAX              DBStatus = 12
 )
 
 // DBConfig are the available database connection configuration options.
diff --git a/vfs/const.go b/vfs/const.go
index 896cdac..1c9b77a 100644
--- a/vfs/const.go
+++ b/vfs/const.go
@@ -225,6 +225,7 @@ const (
 	_FCNTL_EXTERNAL_READER       _FcntlOpcode = 40
 	_FCNTL_CKSM_FILE             _FcntlOpcode = 41
 	_FCNTL_RESET_CACHE           _FcntlOpcode = 42
+	_FCNTL_NULL_IO               _FcntlOpcode = 43
 )
 
 // https://sqlite.org/c3ref/c_shm_exclusive.html