19c is the last release of the 12.2 code line (12.2 → 18c → 19c). It is the most stable, most deployed Oracle version in production today. If you are running 11g or 12c, 19c is your safe, low-risk upgrade target.
Skip it. Upgrade from 19c directly to 23ai. 3. Oracle Database 23ai – The Future (Formerly 23c) Released: General availability May 2024 Support model: Long Term Release (yes, confirmed by Oracle) oracle database releases
21c was an innovation release that very few customers adopted. Its key features (native blockchain tables, JSON data type improvements, in-database JavaScript) were absorbed into 23c/23ai. 19c is the last release of the 12
| Family | Philosophy | Typical Customer | |--------|------------|------------------| | | Stable, supported for 8+ years | Enterprises, regulated industries, core OLTP | | Innovation Release | New features, shorter support (2 years) | Dev teams, data warehouses, early adopters | Skip it
The confusion? Oracle doesn't always label them clearly. But the pattern holds. Released: 2019 (as 19.1) Premier Support ends: April 2027 Extended Support ends: April 2030