Query for seeing dates on which integers in another column change

New to Julia
2

I want to say just use a for-loop but you can also do this I suppose

julia> df = DataFrame(dates=today()-Day(5):Day(1):today(), ints = [1,1,2,3,3,4])
6×2 DataFrame
 Row │ dates       ints  
     │ Date        Int64 
─────┼───────────────────
   1 │ 2021-10-19      1
   2 │ 2021-10-20      1
   3 │ 2021-10-21      2
   4 │ 2021-10-22      3
   5 │ 2021-10-23      3
   6 │ 2021-10-24      4

julia> df[[0;diff(df.ints)] .!= 0, :]
3×2 DataFrame
 Row │ dates       ints  
     │ Date        Int64 
─────┼───────────────────
   1 │ 2021-10-21      2
   2 │ 2021-10-22      3
   3 │ 2021-10-24      4
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