If the site was released to the client last July then 8.0.0 would have been the current release thus the decision to upgrade lies with the client, if however the site was released to the client in the last month, it should have been released in 8.5.1
2 options
in this situation the designer should take his version of the site and upgrade it to 8.5.1 HFUA and re release back to his client
or
should take back the client's 8.5.1 and correct the errors.
taking into account merging order history and products
2 options
in this situation the designer should take his version of the site and upgrade it to 8.5.1 HFUA and re release back to his client
or
should take back the client's 8.5.1 and correct the errors.
taking into account merging order history and products
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