If you have troubles accessing the trello board please let me know.

A release management draft page has been created at: https://www.ovirt.org/release/4.5.0/

If you're willing to help testing the release during the test days please join the oVirt development mailing list at
https://lists.ovirt.org/archives/list/devel@ovirt.org/ and report your feedback there.

Please join the trello board for sharing what you're going to test so others can focus on different areas not covered by your test.

If you don't want to register to trello, please share on the oVirt development mailing list and we'll add it to the board.

The board is publicly visible also to non-registered users.
Instructions for installing oVirt 4.5.0 Alpha and oVirt 4.5.0 Beta for testing have been added to the release page
https://www.ovirt.org/release/4.5.0/ and to relevant documentation sections on the oVirt website.

Professional Services, Integrators and Backup vendors: please run a test session against your additional services, integrated solutions,
downstream rebuilds, backup solution accordingly.
If you're not listed here: https://ovirt.org/community/user-stories/users-and-providers.html
consider adding your company there.

If you're willing to help updating the localization for oVirt 4.5.0 please follow https://ovirt.org/develop/localization.html

If you're willing to help promoting the oVirt 4.5.0 release you can submit your banner proposals for the oVirt home page and for the
social media advertising at https://github.com/oVirt/ovirt-site/issues
As an alternative please consider submitting a case study as in https://ovirt.org/community/user-stories/user-stories.html

Feature owners: please start recording a presentation of your feature for oVirt Youtube channel: https://www.youtube.com/c/ovirtproject
If you have some new feature requiring community feedback / testing please add your case under the "Test looking for volunteer" section.

Do you want to contribute to getting ready for this release?
Read more about oVirt community at https://ovirt.org/community/ and join the oVirt developers https://ovirt.org/develop/