From what i read on 2+2 and here there is a whole list of software this will affect including Note caddy , Poker stove and cardcharts, etc, it seems serious, this is something i read earlier, apologies for the paste job-
has revised its own policies and laid out complex set of rules which will disable much of the functionality of third-party poker software. While the site still plans to allow the collection of hand histories, HUDs are no longer allowed to ingest data and spit out a recommended move for their owner. These programs will now only be allowed to display numbers, leaving users to make their own decisions.
Also prohibited will be reference material like starting hand charts or "anything considered to be sophisticated in nature." Furthermore, so-called game state reporters will not be allowed to retrieve information from such material, and, for example, notify a user under which grouping a hand falls.
Changes have been made to the PokerStars waiting list as well. Seating scripts can no longer "time a player's registration into a global waiting list" and players will now be forced to register for specific tables or tournaments.
The revised rules have not gone over well with many poker pros and will certainly cause headaches for software developers who have put countless hours into creating their product. But as operators once catered to the needs of high-volume professionals, they have now learned that in order to thrive, they will need to strike a balance between grinders and amateurs.