Chat Control 2.0 is back in focus as EU lawmakers prepare for another round of negotiations on September 29.

The European Parliament, Council and Commission are still divided over issues including detection measures, the scope of scanning and protections for encrypted communications. With five previous trilogues failing to reach a final agreement, the September meeting could be an important step in deciding where the legislation goes next.

Here’s a breakdown the current proposal, the main disagreements and what to watch on September 29.