Later this week, we are expecting an update from Morningstar to the way that they classify US companies at the Industry and Industry Group level. The change includes additions, removals, and changes to labels at both the Industry and Industry Group level, but the new classification system will only be applied going forward (the old system will not be retroactively updated). Both the old classification system and the new one are detailed in our documentation (old system / new system).
Please note that if you have any Industry or Industry Group codes hard coded in your algorithms, the behavior of those algorithms on simulation dates after this week might change from what you've seen. However, the behavior on backtest/simulation dates prior to this week should not be changed, since historical data is unaffected by the change.