if you start here:
https://docs.opendaylight.org/en/latest/

there really is no obvious or easy way for someone to find our release
process, schedule etc. things like this:

https://docs.opendaylight.org/en/latest/release-process/release-schedule.html?highlight=release
https://docs.opendaylight.org/en/latest/release-process/managed-release.html?highlight=release