diff -ur percona-server-5.7.28-31.orig/libmysql/libmysql.map percona-server-5.7.28-31/libmysql/libmysql.map
--- percona-server-5.7.28-31.orig/libmysql/libmysql.map	2019-12-16 22:38:32.587000000 +0100
+++ percona-server-5.7.28-31/libmysql/libmysql.map	2019-12-16 23:41:16.223000000 +0100
@@ -145,6 +145,7 @@
 	mysql_net_realloc;
 # PHP's mysqli.so requires this (via the ER() macro)
 	mysql_client_errors;
+	client_errors;
 # mydumper requires this (added by remi)
 	my_net_read;
 };
@@ -152,4 +153,6 @@
 libperconaserverclient_18_1 {
   global:
 	get_tty_password;
+# for mysql-workbench 6.1
+	mysql_options4;
 };