Once downloaded, store a copy on your internal network share. Oracle does occasionally purge old otn paths, and finding 17.3 next year will be even harder. Have a different legacy version you need? (12.1, 4.0, 3.2)? Leave a comment below or check the Oracle Support Doc ID 2076107.1 for older release matrices.
Here is the exact method to locate and download version 17.3. Oracle does not keep old versions on its primary "Download" button. If you go to the main SQL Developer page today, you will only see the latest version. Oracle wants you on the new version—but they haven't deleted the old files; they simply hid them. download sql developer 17.3
If you paste the link directly into a browser, you will likely get an HTML page saying "You must accept the OTN License Agreement." Once downloaded, store a copy on your internal network share
To bypass the HTML wall and get the file using wget or curl , you must pass the cookie header. Oracle does not keep old versions on its
