Hi Steve,

On Mon, Oct 19, 2020 at 11:22:41AM +0000, Monsees, Steven C (US) via lists.yoctoproject.org wrote:

Hello:

I am currently at Yocto release "Rocko 2.4.1" and I am looking into the effort to port to the latest Yocto release...

We have been using this rocko platform revision for the last few years in a project, and now want to move to the latest supported release.

Is there a preferred established methodology/guidelines when porting projects from much older established revisions of Yocto?

You have a few of the changes highlighted in:
https://docs.yoctoproject.org/ref-manual/migration.html

Obviously, you'd need to do all the changes between Rocko and the
version you're targetting (highly recommend dunfell (3.1) as it's an
LTS).

Is it considered better to port an established project directly to a new Yocto release, or to slowly migrate the yocto revision to the desired release ?

I've done one upgrade only (krogoth 2.1 to thud 2.6) and it was direct,
I'm not sure there's any benefit in doing incremental upgrades?

Good luck :)
Quentin