Yes, the indicator still works fine.

There is no need to make big changes like @itaiophir suggested.

Just replace the line 374:

var month = DateTime.ParseExact(dateTab[1], "MMM", null).Month;

with

var month = DateTime.ParseExact(dateTab[1], "MMM", CultureInfo.InvariantCulture).Month;

Addionally, change the legacy references to the updated method:

/forum/whats-new/2713