Due to a mistake in the process of generating the translations, the initial release of series 4.8 contained some unstranslated strings. We decided to make new set of releases with the correct translations even if it breaks the rule of no database updates for bug fix releases.
If you have already updated your server to the series 4.8, you need to also update the database for this bug fix release. Sorry for the inconvenient.
This release additionaly includes the Spanish Chart of Accounts which has cleaner design and is now available for the 4.8 series.