Also means
modernisation
Usage Note
Actualización is the standard term in Spanish-language tech contexts for a software update or upgrade — actualización del sistema, actualización de seguridad. Outside tech it can mean bringing something up to date more broadly. Note the false friend: actual in Spanish means 'current' or 'present-day', NOT 'actual' (real) in English, so actualización is closer to 'updating' than 'actualization'.
Examples
"El teléfono instaló una actualización automáticamente."
Natural Translation
The phone installed an update automatically.

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