Creating Calculated Table With some filtering based on row values

Hi

I did this in 3 steps:
1. In Power Query add an Index row (row is called ID)
2. Add a custom column "HasChanged" in DAX. Check if the value of the "Change" column has switched (compared to the row with closest lower ID). Output is "true" or "false"
3. Create a table using only the rows with "HasChanged" = "true"

Add Index column in PQ (step 1):

Formula for calculated column (step 2):

HasChanged = /*Calculated Column => every row in the table is iterated*/
VAR _ID = Versions[ID]              /*ID of current row*/
VAR _Change = Versions[Change]      /*Change of current row*/
VAR _PrevID =                       /*Get the ID of the previous row*/
MAXX(
    FILTER(
        Versions,
        Versions[ID] < _ID),
    Versions[ID])
VAR _ChangePrevID =                 /*Get Change of previous row*/
MINX(
    FILTER(
        Versions,
        Versions[ID] = _PrevID),
    Versions[Change])

RETURN _Change <> _ChangePrevID     /*Check if "Change" has a different value than in previous row*/  

Formula for calculated table (step 3):

Versions with changes = CALCULATETABLE(Versions,Versions[HasChanged])

I'm sure there are more elegant and compact ways to do this.  Hope this helps anyway.
JJ