Oracle 11.2.0.4 has reached the Sustaining Support phase, which means limited support and maintenance are available. While it's still possible to use this version, organizations should carefully consider the security, support, and maintenance implications. Upgrading to a newer Oracle database version or engaging third-party support providers may be necessary to ensure the continued stability and security of your database infrastructure.
While Sustaining Support lasts for as long as you license the product, it is primarily a "self-service" model. It includes: oracle 11.2.0.4 support
If your organization is still using Oracle 11.2.0.4, here are some factors to consider: Oracle 11
Examples: