Does HP-UX 11.00 support binary compatibility with previous releases?
Yes. In general, well-behaved, non-architecture dependent 10.x (and 9.x applications qualified on 10.x) applications will execute on 11.00. Applications that relink 10.x relocatable objects with 11.00 relocatable objects on 11.00 may work, but are not supported. Refer to the HP-UX 11.00 Software Developer’s Guide for more information on the definition of a well-behaved application.