They are vague and unless you are 100% sure something is standard, don’t assume it is and don’t use the word.
Throughout this year (if you are referring to the present calendar year) Throughout last year Over the last few years Bottom line – be careful of how you use “during” to refer to time periods
It’s often used like ‘we did x “in case” you use y’. “when” is sufficient.
We updated X to overcome Y. => We updated X to address Y.