In today’s threat landscape, where vulnerabilities can be exploited within hours, patching is no longer a
routine maintenance task, it is a critical security operation. Oracle’s latest 26ai and 19c Release Updates (RU) introduce a set of innovations designed to make patching faster, safer, and less disruptive, especially on Oracle RAC as sessions can be drained seamlessly. Additionally, customers using one instance can benefit from rolling patching using Oracle 26ai Single Server Rolling Database Maintenance feature.
Patch Critical Vulnerabilities without Downtime
One of the most impactful enhancements is the ability to patch Java Runtime Environment (JRE) vulnerabilities without stopping the database or Grid Infrastructure. This allows organizations to:
- Apply critical security fixes immediately
- Eliminate emergency maintence windows
- Maintain services during patching
Patches can be applied using the familiar tools like FPP (Fleet Provisioning and Patching) or opatchauto without any additional command line options.
Reduce Risk with a Modernized Software Stack
Oracle is simplifying the software stack by replacing Apache Tomcat application server with Micronaut framework. Micronaut framework reduces operational risk by:
- Lowering exposure to frequently targeted components
- Eliminating the need for a full application server layer
- Reducing overall runtime complexity
This change helps reduce the frequency of urgent patch cycles and improves overall platform stability.
Standardize Patching with Integrated Gold Images
Release Updates as shown in the image below, now include a complete gold image, enabling a consistent out-of-place patching workflow.

With Gold images, teams can:
- Deploy a new GI and Oracle home from gold images
- Perform a switch home operation during maintenance windows
- Improve patching reliability abd reduces configuration drift
Additionally, Oracle FPP 26ai now includes a local mode option which runs locally on the database server itself and does not require a separate setup, greatly simplifying Gold image based patching operations.
Enable Continuous Security Without Compromising Availability
These enhancements collectively reduce operational complexity and risk. By standardizing on out-of-place patching and gold images, organizations can:
- Minimize downtime
- Avoid patch failures due to environmental inconsistencies
- Streamline patching processes
Oracle’s latest innovations reflect a broader shift toward continuous, low-impact security operations. With the ability to patch critical vulnerabilities without downtime and standardize deployment workflows, organizations can significantly reduce their exposure window while maintaining high availability.
Get Started
The shift to zero-downtime patching marks a turning point in how organizations approach database security. What was once a disruptive, high-risk activity is now a continuous, predictable process. DBAs and platform teams should:
- Review and evaluate the latest Oracle Release Update bulletins
- Evaluate Fleet Patching and Provisioning for automated patching workflows
- Standardize on Gold Image based out of place patching

