Version: 6.4.1

• Extended IP and Subnet search and API enhancements in v6.4.1
• Extended IP and subnet search (global)
• IP as popup on device edit page
• Auto-Discovery list pages enhancements
• Auto-Discovery menu changes
• PDU Model list page changes
• Rack changes
• Changes to reports
• IE Compatibility mode issues
• Added "change to not in service" to lifecycle event actions
• Lifecycle notes and events added to global search
• API Changes

Bug Fixes

• AD/LDAP sync now support international character set for group names.
• End user sync for LDAP was failing. Now fixed.
• Azure VM was being saved as type Digital ocean VM, now fixed
• Certain network devices were being auto-discovered as Chassis. Now fixed.
• Date field in reports was not being saved correctly. Now fixed.
• Physical connections rack layout was not showing if pdu model was missing. Now fixed.
• Custom field validation for mandatory custom fields was broken in previous release. Now fixed.
• Patch panel back connectivity page had a layout issue where the error message hid the port number field. Now fixed.
• Actions drop down was missing for IP NAT. Added in this release.
• Search fields for transfers was missing on the transfers list page. Now added.
• Added port_name and switch to mac address reimportable export.
• Fixed Tag filter (None).
• Device GET by name API call was failing if name had a space in it. Now fixed.

Details: http://blog.device42.com/2015/03/extended-ip-and-subnet-search-and-api-enhancements-in-v6-4-1/