we are planning a oracle database upgrade from 11.2.0.3 to 11.2.0.4 with OGG integrated extract

hi,

we use at the moment OGG 11.2.1.0.13 integrated extract with a downstream mining database and a seperate target database.

our source db has the version 11.2.0.3.

the downstream mining db has 11.2.0.3.6 with patch 16764932 described in docID 1411356.1

the target db is also at version 11.2.0.3.6 with patch 16764932

the postinstallion tasks (@?/sqlpatch/16764932/postinstall.sql ) are applied to downstream and target database.

i know that the downstream mining version must be equal or higher as the source database so i will start the upgrade with target -> downstream -> source to 11.2.0.4.1 patch  18095555 described in Doc ID 1557031.1.

the question is what are the tasks for OGG during the upgrade of the databases?