One of the Dota 2 developers explained when the players should expect patch 7.23, also known as the Outlanders Update, to be released. According to the developer, the update is expected to become available after MDL Chengdu Major.
The release date is not set in stones, but the developers promised to release it soon after the first major of the season, which is scheduled for November 16-24th, is concluded. Earlier it was announced that the Outlanders Update will introduces two new heroes – Void Spirit and Snapfire – that were showcased at The International 2019.
The last released hero for Dota 2 is Mars, who was added to the game this March with update 7.21c.