A new Abyssal Proving Grounds event is now live in EVE Online, so make sure you have your Proving Filaments handy either from Abyssal Deadspace loot drops, or from the in-game market!
Until 11:00 UTC on 1 September, you can engage in 5v5 Corvette combat, meaning that the permitted hulls for this event are the Ibis, Velator, Reaper, and Impairor - with no modules higher than meta level 4 (T1 and Named). Pirate implants are also restricted. Furthermore, there is a limit of two corvettes of any given type in a single fleet.
Don't forget, you can keep track of Capsuleer performance and prowess in this event using the leaderboards!