The D8/9 policy was that this instance was supported for development purposes only.
CLiu's main drupal core is D7 which is publicly supported by drupal.org at least thru its current d.o EOL in November 2023 and the version of it here after that. The specific support of Symfony versions is done on a per module group requirement basis.
However D10 is being investigated for DRD ops against Cliu sites and will be used as part of the production SB Network codeset should it be found workable.
Login here is for devops1 users.