account, you can search for and download legacy patches and full clients. Oracle Database 12c Client : This specific version (3.2.20.10) was bundled within the Oracle 12.1.0.2 Client . Downloading that client package (e.g., p21419221_121020_MSWIN-x86-64_7of10.zip ) will include this version of SQL Developer. Archival Repositories : Third-party developer sites like Software Informer
This specific version was legendary in the DBA circles. It was the last of the "lightweight" 3.x series. It was the version that just worked. It didn't demand 4GB of RAM just to open a connection. It didn't have the laggy, graphical heavy interface of the upcoming 4.0 release. It was a utilitarian workhorse.
This was the first version to officially support the 12c database.
If you are still running Oracle Database 10g Release 2 (10.2) or 11g Release 1 (11.1), newer SQL Developer versions may have deprecated certain connection methods or JDBC drivers. Version 3.2.20.10 works flawlessly with older JDK 6 and older database versions.





















