About one LTS ".0" release every 1-2 years (8.0, 9.0, ...)
Daily updates of all stable package installers with the latest bugfixes
3 most recent LTS releases supported at any time
Intermediary "saas-X" versions completely unsupported (except on Odoo Online Cloud)
1. Use the live chat to ask your questions.
2. The operator answers within a few minutes.