Removing software fixes

This topic summarizes when IBM® i, Licensed Internal Code, or licensed program fixes can be removed from your system.

You can remove fixes that you installed temporarily. Delayed fixes that you installed temporarily can be removed temporarily when you do a restart or IPL (initial program load) and then removed permanently without doing an IPL. Immediate fixes that you installed temporarily can be removed either temporarily or permanently without doing an IPL. You can also remove immediate fixes that have been loaded but not applied. Fixes permanently installed cannot be removed.

When fixes are removed temporarily, the original objects that were replaced by the fix are restored to the program library. The system again verifies that the fix being removed is not required for any other currently applied fix. If the fix being removed is found to be required, the other fix (that it is required for) must be removed first or at the same time.