Season 6 (Halo Wars 2)
From Halopedia, the Halo wiki
Season 6 was the sixth season of Halo Wars 2 to launch, beginning on August 17, 2017. The season followed Season 5 and was succeeded by Season 7 on September 26, 2017. The season launched alongside the release of the leader Yapyap the DESTROYER; as such the season's emblem is represented by a Banished Goblin.
Season 6 Title Updates
August 17 patch notes
August 31 server patch
A game patch was released today to address the recent increase in online disconnects and de-syncs. There are no other content items or code changes included with this patch.
Thank you for your feedback and continued support of Halo Wars 2!