Modern SQL Developer releases (22.x, 23.x) are feature-rich but resource-heavy, often requiring Java 11 and a modern GPU for smooth rendering. In contrast, 4.1.3 runs on Java 7 or 8, consuming less than 300 MB of RAM for typical sessions. This leanness does not come at the cost of essential capabilities:
Replace or add ojdbc6.jar (version 11.2.0.4) in the sqldeveloper\jdbc\lib folder. oracle sql developer 4.1.3
A graphical dashboard for DBAs to monitor database performance, including IO, wait events, and storage, without requiring server-side agents. Modern SQL Developer releases (22