A couple of weeks back Housemarque officially revealed the Heroes DLC for Resogun, as well as news of a free update for all owners of the game. The free update was supposed to be going live on June 23rd, but it appears the date has been moved forward by a day and will instead go live tomorrow, Sunday 22nd June. The Heroes DLC will not be available for purchase until the store update later this week.
When the update is downloaded players will have access to a ship editor, where you can build your own craft from scratch to use in the game, as well as local co-op and new trophies to unlock, though what they are have not been revealed though we’ll know tomorrow. While there will be additions there will also be some removals, including resetting the current leaderboards back to zero, However, the current leaderboards will be archived into a Hall Of Fame that will be viewable in game by everyone. Once the update goes live that leaderboard will no longer update.
The developers have also been looking at exploits within the game and will be patching them out as part of this update, as well as checking for other bugs and getting rid of them.
Source: PS Blog