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Wiktionary:
2. an improved component or replacement item, usually applied to technology
With my phone company, I get a free upgrade every twelve months if I keep topping up 10 pounds a month.

https://www.advancedcpc.com/blog/software-upgrade-vs-update-what-difference

https://www.parkersoftware.com/blog/whats-the-difference-between-a-software-upgrade-and-a-software-update/

näiteid
https://www.lawinsider.com/dictionary/software-upgrade

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