--- a/make/data/tzdata/VERSION	Wed Aug 07 07:45:37 2019 -0400
+++ b/make/data/tzdata/VERSION	Wed Aug 07 13:00:57 2019 +0100
@@ -21,4 +21,4 @@
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
-tzdata2019a
+tzdata2019b