16.1.2 LDAP bind password no longer viewable in clear text
LDAP authetication bind password, once stored in the database, was accessible to Zabbix Super Admin level users in clear text in HTML source code. This has been fixed, by hiding the password from clear view.
A trigger can now only be processed by one main, history syncer or timer process at a time, which should eliminate problems like multiple successive OK events and might lead to a performance improvement for timer processes on large systems, because they will not do duplicate work by processing triggers already being processed by history syncers.
Trigger processing performance during low level discovery has been improved.
Low level discovered triggers won't be deleted and will still work if relevant items are not discovered anymore (until those items get deleted).