This is the 5052nd most frequent Turkish word.
gündemdeki
"On the agenda" or "current."
'Gündemdeki' here is used as an adjective derived from the noun 'gündem' (agenda) to describe the 'topics' discussed that are relevant or part of the agenda.
Gündemdeki konular oldukça tartışmalı.
The topics on the agenda are quite controversial.
In this sentence, 'gündemdeki' functions to specify the events that are being discussed or are notable in current discourse.
Bu hafta gazetelerde yine gündemdeki olaylardan bahsediliyor.
This week, the newspapers are again talking about events on the agenda.
Here, 'gündemdeki' qualifies 'changes' to indicate those that are currently highlighted or considered significant.