2.3 Deprecated and Desupported Features for Oracle Database
Oracle Database 18c introduces behavior changes for your database in addition to new features. Changes in behavior include deprecated and desupported initialization parameters, options, syntax, and the deprecation and desupport of features and components. For more information, see the Oracle Database Upgrade Guide
Terminal Release of Oracle Streams
Oracle Database 18c is the terminal release for support of the Oracle Streams feature. Oracle Streams will be desupported from Oracle Database 19 onwards.
Oracle Streams was deprecated in Oracle Database 12c (12.1). It does not support features introduced in Database version 12.1 and later releases, including the multitenant architecture, the LONG VARCHAR data type, long identifiers, and other features. Oracle GoldenGate is the replication solution for Oracle Database.
Parent topic: Issues Affecting All Platforms for Oracle Database 18c