January 17, 2020
Valve continues to tinker with the Ranked Matchmaking (MMR) system in Dota 2. In the update from January 17, the game developers tweaked the gain/loss values for solo and for party queue, removed the fast/slow queue and added a new ranked option.
Players will no longer experience variability in the amount of MMR gain or lost after a match. If previously a player could gain for example 10 MMR for a win and lose 40 MMR on a loss, depending on the skill bracket in which he was playing, starting today, the values are fixed for both solo or party games. A solo game won will grant 30 MMR, while party games give 20 MMR.
Additionally, the Ranked Matchmaking is now split into two categories, Ranked Roles and Ranked Classic. The new Ranked Classic option has replaced the slow queue and it does not allow the players to select the roles. According to the update notes, the new option was added “because the slow/fast queue concept has not been successful in producing good quality games. The end result was slow queue waiting a little bit longer, and then forcing very bad quality matches on the entire player pool. We think it’s a fair requirement to enforce that if you want to have the advantage of playing a specific role, you have to contribute to the matchmaking system by sometimes playing other roles, or just queue role-less as in previous years.”