This is the 671st most frequent French word.
prévue
Planned; expected; foreseen.
In this sentence, 'prévue' is used as an adjective stemming from the verb 'prévoir', meaning 'planned' or 'scheduled'. It describes the meeting's arrangement in the future.
La réunion est prévue pour demain matin.
The meeting is planned for tomorrow morning.
Here, 'prévu' is used as a past participle to imply that an action follows what was anticipated or prearranged.
Il agit comme prévu dans le plan.
He acts as planned in the plan.
In this instance, 'prévues' functions again as an adjective matching the gender and number of 'améliorations', showing that foresight was applied to arrange future changes.