Application and Server Monitoring Templates:

Templates can now include attachment files.

There’s now an option to mark template’s Match monitor “for network discovery only”.

User interface:

Now an icon can be assigned to a host or a host group. Hosts inherit host group icon by default, but it may be changed. A number of predefined icons are available for different types of hardware, Operating Systems, or server roles. Besides, you can add and use icons of your choice.

You can read the complete list of new features, enhancements and bug fixes in release notes.