trytond_account >= 2.8, < 2.9
trytond_party >= 2.8, < 2.9
trytond_product >= 2.8, < 2.9
trytond_purchase >= 2.8, < 2.9
trytond_stock >= 2.8, < 2.9
trytond >= 2.8, < 2.9