We’re upgrading from OBIA 7.9.5 (Financials - GL) to OBIA 7.9.6. Our reasons are for support (7.9.5 does not support Oracle 11g) and minor functionality additions.
Our architecture is: HP-UX 64 bit Itanium (11.31), Oracle 11g (220.127.116.11), separate ETL server, 4x OBIEE servers (2x BI, 2xPS). We have no customisations in the ETL except something for budgets, which is superseded in 7.9.6.
This post is a semi-formed articulation of my frustrations encountered during an initial run through of the upgrade in a sandbox.