Functionality gets marked as deprecated when a specific function or feature is supported in the current release but might be removed in a future release. In some cases, it might be advisable to plan to discontinue the use of deprecated functionality.
For example, a registry variable might be deprecated in this release because the behavior triggered by the registry variable has been enabled by default in this release, and the obsolete registry variable will be removed in a future release.
Review each topic to find out more details and to plan for future changes. Review also Discontinued functionality in Version 9.7 that might affect your databases and existing applications.