No more waiting until the 1st and 15th to see how your recent rounds impact your handicap. The expectation is that you’ll post your score immediately after playing, so you can see the WHS in action.
Every time a score is added, removed, or edited you’ll want to check your Index, but not until after midnight PST. The other reason it’s important to post your score the day you play, is so it will be included in the daily Playing Conditions Calculation (PCC). Even if the PCC winds up being zero, the system needs all scores to be in the “data pool.”