historyInfo gives better report information than the versionInfo, providing dates that patches were installed, etc. Handy tip.
Example:
--------------------------------------------------------------------------------
IBM WebSphere Application Server History Report
--------------------------------------------------------------------------------Report at date and time: 2004-12-26 01:47:19-0500
Installation
--------------------------------------------------------------------------------
Product Directory: /opt/WebSphere/AppServer
Version Directory: /opt/WebSphere/AppServer/properties/version
DTD Directory: /opt/WebSphere/AppServer/properties/version/dtd
Log Directory: /opt/WebSphere/AppServer/logs/update
Backup Directory: /opt/WebSphere/AppServer/properties/version/update/backup
TMP Directory: /tmp
History Directory /opt/WebSphere/AppServer/properties/version/history
History File /opt/WebSphere/AppServer/properties/version/event.historyInstallation Event
--------------------------------------------------------------------------------
Maintenance Package ID: was60_fp1_linux
Action: install
Package Filename: was60_fp1_linux.pak
Log File Name:
/opt/WebSphere/AppServer/logs/update/was60_fp1_linux.install/updatelog.txt
Backup File Name:
/opt/WebSphere/AppServer/properties/version/backup/was60_fp1_linux.pak
Timestamp: 2004-12-14 06:15:14-0500
Result: successComponent Installation Event
-----------------------------------------------------------------------------
Maintenance Package ID: was60_fp1_linux
Component Name: activity
Action: install
Update Action: replace
Timestamp: 2004-12-14 06:15:14-0500
Result: success