My client has a LIVE site which is translated into 2 languages. For this they are using the Entity Translate module.
The issue is the same site has been recreated on a DEV server and the translations has increased by one more language. Meanwhile, the LIVE site has been updated quite a lot so it is not possible to overwrite with the DEV site's database.
Can anyone give me some tips on how to manage updating the LIVE site with the new language translation from the DEV without causing any issues?