When you are upgrading to version 4.5 of Iguana, you must be aware of the following potential issues:

The log file format used in version 4.5 has been improved

The log file format used in version 4.5 has been improved to handle messages larger than 1 MB in size. For this reason, the log file format used in version 4.5 is different from the format used in previous versions.

For information on how the transition from the old log file format to the new log file format is handled when upgrading, see Log File Changes When Upgrading to Version 4.5.

User groups have been replaced by roles

In version 4.5 of Iguana, user groups have been replaced by roles, which are significantly more flexible. See Upgrading From User Groups to Version 4.5 Roles for more details.