I went to the demo server, enabled product_attribute to see if maybe the export function had improved
where you could actually export the values instead of just getting [object Object].
But I was unable to get attributes to work. I created an attribute and attribute set then created a new
product with the attribute set, but when I created a variant from the new product, the attributes tab did not display.
It did not change since its first version: https://hg.tryton.org/modules/product_attribute/file/tip/CHANGELOG
But we added support for MultiSelection and help in 5.6, to customize keys order in 5.4, validate selection format, search on key values, order record by key values in 5.2…