Upgrading databases and applications includes compacting the databases to upgrade the database format and upgrading database templates. When you upgrade to Lotus Notes/Domino 6 templates and features, be aware that Notes 4.6 and Notes 5 clients cannot use these features. Using Lotus Notes/Domino 6 templates and features in a mixed-release environment can cause complications by preventing some clients (those running earlier releases of Notes) from using the full functionality of the application.

Lotus internal testing, and testing done in conjunction with ISV partners, demonstrates that upgrade concerns and issues for applications are generally minor or nonexistent. However, each application is different. Test all mission-critical, revenue-generating, or complex applications on Lotus Notes/Domino 6 before deploying them.

There are three choices for upgrading databases and applications in the Lotus Notes/Domino 6 environment:

1. Upgrade an application server to Lotus Domino 6, but leave databases in Domino 4.6 or Domino 5 format.

All clients can access the databases.

All clients can access the databases. Compact the database to the new database format.

Notes 4.6 and Notes 5 clients cannot use the Notes 6 features. You may need to make changes to the application to use new features. Compact the database to the new database format, upgrade to the Notes 6 design, and add new Notes 6 features as wanted.

Preparing to upgrade to Lotus Notes/Domino 6
Planning the upgrade
Testing applications before upgrading