information about the
lines modified, deleted, added of every beta/final release.
As an registered translator You get all that from Ghisler when he decides that the beta test is so far that no more translation is anticipated.
So maybe you should ask Ghisler to become Latin American Spanish translator, although Mario Angel Regalado and Alejandro Muñoz Uribe already seems to be doing Spanish for South America - http://ghisler.com/languages.htm