To all Users of the older release OBIEE 10.1.3.4.1:
Patching support for 10.1.3.4.1 ends in September (1 year after 10.1.3.4.2 patchset release).
After September, there will be no more one-off patches available for 10.1.3.4.1 or lower versions.
Customers may apply 10.1.3.4.2 patchset so they can continue receiving one-off patches if situations arise.
10.1.3.4.2 is a QA-tested patchset (collection of all bug fixes from 10.1.3.4.1 merged together) and is not an upgrade.