Hello, I cannot spreak for Queens to Train specifically but we jumped from Rocky to Train without any major hickups, we did a lot of testing before, just be sure to verify that projects support multiple jumps. I'm unsure if minimum version to jump to Train for Nova was Queens or Rocky so you might want to start looking at that. Best regards Tobias ________________________________________ From: Carlos Camacho Gonzalez <ccamacho@redhat.com> Sent: Wednesday, May 20, 2020 9:47 AM To: Fabian Zimmermann Cc: OpenStack Discuss Subject: Re: [operators] multi release upgrades? Hi, There are some upstream docs to achieve that[1]. So, depending on the OpenStack flavor you are using the steps might differ but the overall approach is pretty much described in that link. [1]: https://specs.openstack.org/openstack/tripleo-specs/specs/queens/fast-forwar... Cheers, Carlos. On Wed, May 20, 2020 at 9:43 AM Fabian Zimmermann <dev.faz@gmail.com> wrote:

Hi,

Does anybody did already some multi release upgrades f.e. queens->train and is able to share his knowhow?

Thanks,

Fabian