Hello,
As Richard has pointed out, The Yocto Project now has a LTS program. It
means the stable branch life cycles are changing. The new standard life
span for a stable release will be 7 months before transitioning to
"Community Supported". That extra month is so we can pull in changes
missed
Its posted at:
https://www.yoctoproject.org/yocto-project-long-term-support-announced/
but I'll copy it below since this is an important announcement
"""
To fulfill the evolving requirements of its members and users, the
Yocto Project announced a new plan to extend support for selected
releases.