---- Percona-Server-5.6.14-rel62.0//libmysql/libmysql.map 2013-10-30 17:14:14.270019272 +0100
-+++ percona-server-5.6.16-64.1/libmysql/libmysql.map 2014-05-02 22:58:14.025317912 +0300
+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