How Db2 function levels are documented

Generally, Db2 for z/OS® documentation assumes that the highest available function level is activated, and that your applications run with the equivalent application compatibility level in effect. However, new and changed content are marked for changes introduced by function levels.

FL 500 Throughout the Db2 13 information, new and changed content for function levels are marked like this paragraph, with a label that is a link to the description of the function level that introduced the changes. You can click the link to see the overview page for the function level, which includes the specific details of the change.

If an entire topic is new, you'll usually find a single function level overview page link near the beginning of the new topic. If the placement or meaning of such a label is ambiguous, see the change descriptions for the function level in the linked topic.

In reference information, syntax diagrams always reflect the highest available function level, and syntax diagrams never include internal revision marks. The associated option descriptions also reflect the highest available function level. However, they are marked with revision marks and links to the function level overview page. In cases where reference materials continue to describe the behavior of previous function levels or application compatibility levels, the differences are generally described in the Notes section at the end of the topic.