1.1. History of Certificate System Releases

This table summarizes all Red Hat Certificate System and Netscape and iPlanet Certificate Management System releases through Red Hat Certificate System 7.3:

Release Date	Product Name	Service Packs
January 24, 1997	Netscape Certificate Server 1.0	1.01, 1.02, 1.03, and 1.0 (SP 1)
June 24, 1999	Netscape Certificate Management System 4.1	4.1 (SP 1)
August 2, 2000	Netscape Certificate Management System 4.2	4.2 (SP 1) and 4.2 (SP 1a)
March 29, 2001	Netscape Certificate Management System 4.2	4.2 (SP 2)
October 10, 2001	Netscape Certificate Management System 4.5
March 28, 2002	Netscape Certificate Management System 6.0	6.01
June 3, 2002	iPlanet Certificate Management System 4.7	4.7 (SP 1)
March 12, 2003	Netscape Certificate Management System 6.1	6.1 (SP 1), 6.1 (SP 2), 6.1 (SP 3), 6.1 (SP 3.1), and 6.1 (SP 4)
June 17, 2003	Netscape Certificate Management System 6.2	6.2 (SP 1)
November 30, 2004	Netscape Certificate Management System 7.0
May 27, 2005	Red Hat Certificate System 7.1
November 6, 2006	Red Hat Certificate System 7.2
May, 2007	Red Hat Certificate System 7.3

Table 1.1. Summary of Certificate System Releases

Every version of Certificate System has the ability to extract data from the installation of a previous version and migrate this data to the newer version. The capability of the migration tool varies from version to version. The following points should be considered when planning migration between versions:

Product downgrade, extracting information from a newer version to import into an older version, is not supported by the migration utility in any version of the Certificate System.
Red Hat Certificate System 7.3 does not support in-place upgrades. Therefore, for versions 6.0 and later, the migration tool is the only way to migrate data from a previous installation to a newer one. This is true even when the installations are on the same machine, running the same platform. For example, a Certificate Management System 6.2 installation on a machine named delta.example.com running Red Hat Enterprise Linux AS has to be migrated to a new Red Hat Certificate System 7.3 installation, even if the 7.3 installation is on the same machine named delta.example.com running Red Hat Enterprise Linux AS. This is accomplished simply by supplying a different installation directory for each instance.