Valve recently announced a slew of new features coming to Dota Plus. The subscription service will let Dota 2 players avoid unwanted teammates in the future as well as additional game-enhancing features.
Dota 2 is a competitive game and toxic players are unavoidable in such an environment. Competitive games offer different solutions to this, such as muting people or outright avoiding them in matchmaking. For example, Overwatch has both features at no extra cost.
On the flip side, Dota 2 will require players to subscribe to Dota Plus if they want to avoid toxic players in the future. Valve added the Avoid Player feature to the game but it's likely to be a polarising one since it's hidden behind a paywall. Those who do not subscribe still have the option to mute toxic players but nothing is stopping them from getting into your team randomly later on.
The official announcement didn't specify how long the removal from the matchmaking pool would be or if it's permanent. Overwatch's Avoid as a Teammate feature lasts for a week which might possibly be the case with Dota 2.
Additional features that came to Dota Plus with the latest patch are the Creep Pull Timers that will help players get precise stacking info, Ward Suggestions for help with warding and total incoming damage breakdown by type which will likely function in a way reminiscent of League of Legends' death recap.
Machine learning hero suggestions from the Friends and Foes feature got replaced in this patch and Chat Wheel Sounds are transferred to Dota Plus reward options. New hero quests have been added along with Season 4 Matchmaking Quests. Players who are queuing up as Hard Support in ranked matchmaking can earn bonus shards.
You can check out the full post on Valve's blog.