Atendendo aos pedidos e sugestões de vários usuários do OpenCart no Brasil, lançamos uma atualização da tradução compatível com as versões 2.1.x do OpenCart, contendo correções e melhorias nos termos traduzidos.

Para fazer o download segue o link:

http://www.opencartbrasil.com.br/download

Os arquivos que foram alterados nesta atualização foram:

admin/language/portuguese-br/portuguese-br.php
admin/language/portuguese-br/catalog/filter.php
admin/language/portuguese-br/catalog/product.php
admin/language/portuguese-br/common/dashboard.php
admin/language/portuguese-br/common/menu.php
admin/language/portuguese-br/customer/custom_field.php
admin/language/portuguese-br/dashboard/activity.php
admin/language/portuguese-br/dashboard/chart.php
admin/language/portuguese-br/dashboard/customer.php
admin/language/portuguese-br/dashboard/map.php
admin/language/portuguese-br/dashboard/online.php
admin/language/portuguese-br/dashboard/order.php
admin/language/portuguese-br/dashboard/recent.php
admin/language/portuguese-br/dashboard/sale.php
admin/language/portuguese-br/design/layout.php
admin/language/portuguese-br/report/customer_credit.php
admin/language/portuguese-br/report/customer_reward.php
admin/language/portuguese-br/report/customer_activity.php
admin/language/portuguese-br/report/customer_order.php
admin/language/portuguese-br/report/customer_credit.php
admin/language/portuguese-br/setting/setting.php
admin/language/portuguese-br/setting/store.php

catalog/language/portuguese-br/portuguese-br.php
catalog/language/portuguese-br/checkout/cart.php
catalog/language/portuguese-br/checkout/shipping.php
catalog/language/portuguese-br/product/category.php
catalog/language/portuguese-br/product/compare.php
catalog/language/portuguese-br/product/manufacturer.php
catalog/language/portuguese-br/product/search.php
catalog/language/portuguese-br/product/special.php

Para mais informações e contribuições acesse o projeto no GitHub:
https://github.com/opencartbrasil/traducao

Aproveitem! :)