Log shipping /Streaming replication between different postgres rpm's

All,

We have to migrate to a new hardware infrastructure and we want to use a Postgres version of EnterpriseDB in the new hardware infrastructure.
On the old infrastructure, postgres comes from postgresql.org
The version of postgres on the old and new infrastructure is the same, 9.1 (old 9.1.5 and new 9.1.9)
All the directories, filesystems, tablespaces etc are the same on the old and new infrastructure.
Is it possible to do log shipping /streaming replication between the old and the new infrastructure?

With regards,

Herman