edX released this week the first pre-release of Dogwood, the next Open edX version after Cypress.
Dogwood RC2 is available for download and for fresh installations, but not for upgrading from Cypress. The RC1 wasn’t released, and the next RC3 is scheduled for January 6th, when upgrade scripts will become available.
Installation instructions have been posted at this wiki page from edX. Meanwhile, the edX Release Notes page gives a sense of what is new.
IBL provided the first Dogwood installation to the community as a testing platform.