Patching systems without downtime (Pega 8.4 and later)
Pega supports clients applying more recent patches for releases 8.4 and later using a zero-time patch process to apply the latest cumulative bundle of bug and security fixes since the last minor release. For releases 8.4 and later, the Pega zero-downtime patch scripts use a temporary data schema and the patch migration script moves the rules between the appropriate schema.
For details about the difference between a major upgrade, a minor upgrade, and a patch, see Pega software maintenance and extended support policy.
Use the out-of-place patch process for zero-downtime patches
Complete your patch without downtime using the out-of-place patch process. Pega zero-downtime patchs are reversible.
While the out-of-place patch process is the recommended method, some clients might prefer to apply the patch in-place, which applies the patch without using the temporary data schema. In-place patchs involve down time. For details, see, Applying a patch in-place.
- Applying a patch without downtime
The Pega patch process is zero-downtime when you use the out-of-place process so you can continue working in your application while you patch your system.
- Applying a patch in-place
Apply a patch in-place on systems that do not require minimal downtime.
- Post-patch tasks
This section describes additional tasks to perform after the patch.