Home > Storage > PowerScale (Isilon) > Product Documentation > Management and Migration > Dell PowerScale: Non-Disruptive Upgrade Best Practices > Roll-Up Patches overview
A monthly cadence for Roll-Up Patches (RUPs) has been established to deliver critical fixes to customers.
In general, there are three kinds for RUPs delivered for each of the OneFS releases listed above every month. They are shown in Table 5:
RUPs category | Userspace/Kernel patch | Require reboot | Description |
Userspace GA RUPs | Userspace patch | No | Highest priority fixes with minimum risk and maximum benefits |
Userspace DA RUPs | Userspace patch | No | Broader fixes coverage |
Kernel GA RUPs | Kernel patch | Yes | Fixes in the kernel space, for example, drivers bug or security bug. It will not conflict with DA or GA Userspace RUPs. |
The relationship among all the three RUPs categories is concluded as below: