This document provides an overview of upgrading to Oracle Database 19c and the release and patching strategy. It discusses:
- Why customers should upgrade their outdated Oracle 7 databases to take advantage of modern features and extended support.
- Oracle's lifetime support policy and how different release types have different support windows.
- The differences between patching and upgrading an Oracle database.
- Details on Oracle's release numbering and how patches are applied as Release Updates and Release Update Revisions over time.
- Recommendations on testing patches before applying them to avoid issues and ensure a smooth upgrade and patching process.