Overview 

Lotus Traveler 8.5.2.4 is a maintenance release that contains APAR fixes plus a few enhancements for the Lotus Traveler server and clients. The information below outlines the changes included. Please be sure to review the Lotus Traveler Product Documentation for additional information.

Feature List

Allow Scheduling of Database Defragmentation for Enhanced Performance (Improved in 8524)
Data Only Wipe for Apple Devices (new in 8523)
Repeated Crash Prevention (new in 8523)
Maximum Filter Window Limits (new in 8523)
Address Encoding for Apple Devices (new in 8521)

(fonte http://www.Lotus.com)