https://us.forums.blizzard.com/en/d2r/t/ptr-24-ladder-developer-update-thread/111735/5

The PTR ladder testing has officially concluded and our team is currently running through the shutdown process. Our PTR Feedback/Bug forum sections will remain open for a while longer to gather any additional notes you would like to share.

Thanks again and stay tuned for more news on the official release of Patch 2.4 and Ladder!