Caché Upgrade Checklists - InterSystems Documentation

9Caché 2007.1 Upgrade ChecklistPurposeThe purpose of this section is to highlight those features of Caché 2007.1 that, because of their difference in this version,affect the administration, operation, or development activities of existing 5.2 systems.General upgrade issues are mentioned at the start of this document. Those customers upgrading their applications fromreleases earlier than 5.2 are strongly urged to read the upgrade checklist for earlier versions first. This document addressesonly the differences between 2007.1 and 5.2.9.1 AdministratorsThis section contains information of interest to those who are familiar with administering prior versions of Caché and wishto learn what is new or different in this area for version 2007.1. The items listed here are brief descriptions. In most cases,more complete descriptions are available elsewhere in the documentation.9.1.1 New Distribution FormatStarting with this release, InterSystems is changing the distribution medium for Caché from CDROM to DVD.CAUTION:You must have a CD reader capable of reading DVDs in order to install this version of Caché.9.1.2 System Management Portal ChangesIn Caché 2007.1, InterSystems has modified and improved the version of the System Management Portal available withCaché 5.2. A summary of the more important changes follows.9.1.2.1 EnableLongStrings Configuration ParameterCaché allocates a fixed amount of space to hold the results of string operations, the string stack. If a string expressionexceeds the amount of space allocated, a error results. For existing applications, this should not be aproblem. However, since this release increases the maximum size of Caché strings, applications that attempt to use thislong strings may experience problems if this is not enabled.When turned on, the configuration parameter, EnableLongStrings, located at [Home] > [Configuration] > [Advanced Settings]under the Miscellaneous category, increases the size of the string stack by approximately 50 times to accommodate operationsinvolving larger strings.Caché Upgrade Checklists 209