The 15.1 release focused on usability and modern database features:
Here’s a concise write-up for locating and downloading , including official sources, version notes, and important legal/compatibility considerations. toad for oracle 15.1 download
The remains a popular search term for good reason: it is a powerful, stable, and efficient tool for Oracle database management. However, because it is a legacy version, obtaining it requires either an existing support contract, a carefully preserved internal copy, or a request to Quest Software. The 15
: Version 15.1 includes "tolerant support" for Oracle 21c, including blockchain/immutable tables, multi-value indexes on JSON columns, and mandatory profiles. including official sources