This hotfix was released on July 28.

Bungie did not release patch notes for this hotfix release. 

The only information provided was a tweet from the Destiny2Team prior to the update: “Next Tuesday we will have a short amount of downtime and background maintenance for Destiny 2. There will be a small download alongside it, but this is not a large patch. We have a minor display fix for expansion pricing in the game.

We do not want players, returning or new, to be mislead or confused by incorrect listings in the game, especially when they’re just getting back up to speed with Monument of Triumph and previous expansions.

Stay tuned for more details on downtime next week.”

Since the Update 9.7.0.4, a couple server fixes were deployed:

Due to an issue where players can spawn near infinite Special Ammo in the Crucible, we will be disabling the 4-Piece Set Bonus from the Gambit “Cyberserpent Null” armor set in Crucible Ops playlists. Yes, this includes Iron Banner, which is live right now! Bountiful Munitions: While Adrenal Rush is active, final blows grant Special Ammo progress. Final Blows against powerful combatants, Guardians, and Taken grants additional progress. This set bonus will continue to function in PvE environments.

We have two more Crucible-centric changes going live today to address map and sandbox balance issues.
1. The map Disjunction is being removed from Iron Banner due to issues with Fortress zone placement. (Update: Due to issues found on the Crucible map Disjunction, we will be removing the map from additional Crucible playlists. Players may still access this map in Private Matches moving forward.)
2. The Europa 4-piece Armor Set Bonus is being disabled in Crucible environments as it can give players Frost Armor at all times. This set bonus will continue to be available in PvE. >> From the Storm : After being out of combat for a moderate duration (this is the part that doesn’t work… seems to be at any time, even when in combat!), slowly gain Frost Armor until you reenter combat. Thank you to all players who have been reporting issues and feedback since Monument of Triumph launched.