We are pleased to announce Oracle Linux 7 Update 5 Developer Preview. https://blogs.oracle.com/linux/announcing-oracle-linux-7-update-5-developer-preview
To get started with Oracle Linux 7 Update 5 Developer Preview, you can simply perform a fresh installation by using the ISO images available for download from Oracle Technology Network.
Or you can perform an upgrade from an existing Oracle Linux 7 installation by using the developer preview channels for Oracle Linux 7 Update 5 on Oracle Linux yum server or the Unbreakable Enterprise Network (ULN).